upd: comments updated

data/framework/glossary/handler.go

@@ -0,0 +1,136 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Handler
+|
+| Purpose:
+|   - Provide a JSON resource provider for the Retriever utility.
+|   - Embed, parse, and expose a complete JSON resource payload.
+|   - Abstract resource storage details from consumers.
+|
+| Guideline:
+|   - Register the handler through retriever.ObrimRetrieverJsonRegister().
+|   - Associate the handler with a unique resource identifier.
+|   - Return the complete parsed resource payload only.
+|   - Delegate retrieval, traversal, filtering, and selection logic to Retriever.
+|   - Do not implement business logic within the handler.
+|   - Do not perform querying, transformation, or resource discovery.
+|
+| Example:
+|   - retriever.ObrimRetrieverJsonRegister(
+|       "software/metadata",
+|       obrimHandlerProvider{},
+|     )
+|   - response := retriever.ObrimRetriever(
+|       "json",
+|       map[string]any{
+|         "resource": "software/metadata",
+|       },
+|     )
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package handler
+
+import (
+	"embed"
+	"encoding/json"
+	"errors"
+
+	"go/module/essential/visible/service/helper/retriever"
+)
+
+// constant
+const (
+	// resource
+	obrimHandlerResourceIdentifier = "framework/glossary" // change identifier if needed
+	obrimHandlerResourceFileName   = "resource"           // change file name if needed
+	obrimHandlerResourceFileExt    = ".json"              // do not change
+
+	// success
+	ObrimHandlerCodeSuccessResourceAvailable = "SUCCESS_RESOURCE_AVAILABLE"
+
+	// fail
+	ObrimHandlerCodeFailedResourceNotFound = "FAILED_RESOURCE_NOT_FOUND"
+	ObrimHandlerCodeFailedInvalidResource  = "FAILED_INVALID_RESOURCE"
+)
+
+// obrimHandlerEmbeddedResource stores the embedded resource file.
+//
+//go:embed resource.json
+var obrimHandlerEmbeddedResource embed.FS
+
+// obrimHandlerProvider implements the Retriever JSON provider contract.
+type obrimHandlerProvider struct{}
+
+// Retrieve loads and returns the complete parsed resource payload.
+func (provider obrimHandlerProvider) Retrieve() (any, error) {
+	return obrimHandlerFetch()
+}
+
+// init registers the handler during package initialization.
+func init() {
+	obrimHandlerRegister()
+}
+
+// obrimHandlerRegister registers the handler with Retriever.
+func obrimHandlerRegister() {
+	retriever.ObrimRetrieverJsonRegister(
+		obrimHandlerResourceIdentifier,
+		obrimHandlerProvider{},
+	)
+}
+
+// obrimHandlerFetch loads, parses, and returns the complete resource payload.
+func obrimHandlerFetch() (any, error) {
+	resource, err := obrimHandlerLoadResource()
+	if err != nil {
+		return nil, err
+	}
+
+	payload, err := obrimHandlerParseResource(resource)
+	if err != nil {
+		return nil, err
+	}
+
+	return payload, nil
+}
+
+// obrimHandlerLoadResource loads the embedded resource.
+func obrimHandlerLoadResource() ([]byte, error) {
+	resource, err := obrimHandlerEmbeddedResource.ReadFile(
+		obrimHandlerResourceFileName + obrimHandlerResourceFileExt,
+	)
+	if err != nil {
+		return nil, errors.New(ObrimHandlerCodeFailedResourceNotFound)
+	}
+
+	return resource, nil
+}
+
+// obrimHandlerParseResource parses the embedded JSON resource.
+func obrimHandlerParseResource(resource []byte) (map[string]any, error) {
+	var payload map[string]any
+
+	if err := json.Unmarshal(resource, &payload); err != nil {
+		return nil, errors.New(ObrimHandlerCodeFailedInvalidResource)
+	}
+
+	return payload, nil
+}

data/framework/metadata/handler.go

@@ -0,0 +1,136 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Handler
+|
+| Purpose:
+|   - Provide a JSON resource provider for the Retriever utility.
+|   - Embed, parse, and expose a complete JSON resource payload.
+|   - Abstract resource storage details from consumers.
+|
+| Guideline:
+|   - Register the handler through retriever.ObrimRetrieverJsonRegister().
+|   - Associate the handler with a unique resource identifier.
+|   - Return the complete parsed resource payload only.
+|   - Delegate retrieval, traversal, filtering, and selection logic to Retriever.
+|   - Do not implement business logic within the handler.
+|   - Do not perform querying, transformation, or resource discovery.
+|
+| Example:
+|   - retriever.ObrimRetrieverJsonRegister(
+|       "software/metadata",
+|       obrimHandlerProvider{},
+|     )
+|   - response := retriever.ObrimRetriever(
+|       "json",
+|       map[string]any{
+|         "resource": "software/metadata",
+|       },
+|     )
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package handler
+
+import (
+	"embed"
+	"encoding/json"
+	"errors"
+
+	"go/module/essential/visible/service/helper/retriever"
+)
+
+// constant
+const (
+	// resource
+	obrimHandlerResourceIdentifier = "framework/metadata" // change identifier if needed
+	obrimHandlerResourceFileName   = "resource"           // change file name if needed
+	obrimHandlerResourceFileExt    = ".json"              // do not change
+
+	// success
+	ObrimHandlerCodeSuccessResourceAvailable = "SUCCESS_RESOURCE_AVAILABLE"
+
+	// fail
+	ObrimHandlerCodeFailedResourceNotFound = "FAILED_RESOURCE_NOT_FOUND"
+	ObrimHandlerCodeFailedInvalidResource  = "FAILED_INVALID_RESOURCE"
+)
+
+// obrimHandlerEmbeddedResource stores the embedded resource file.
+//
+//go:embed resource.json
+var obrimHandlerEmbeddedResource embed.FS
+
+// obrimHandlerProvider implements the Retriever JSON provider contract.
+type obrimHandlerProvider struct{}
+
+// Retrieve loads and returns the complete parsed resource payload.
+func (provider obrimHandlerProvider) Retrieve() (any, error) {
+	return obrimHandlerFetch()
+}
+
+// init registers the handler during package initialization.
+func init() {
+	obrimHandlerRegister()
+}
+
+// obrimHandlerRegister registers the handler with Retriever.
+func obrimHandlerRegister() {
+	retriever.ObrimRetrieverJsonRegister(
+		obrimHandlerResourceIdentifier,
+		obrimHandlerProvider{},
+	)
+}
+
+// obrimHandlerFetch loads, parses, and returns the complete resource payload.
+func obrimHandlerFetch() (any, error) {
+	resource, err := obrimHandlerLoadResource()
+	if err != nil {
+		return nil, err
+	}
+
+	payload, err := obrimHandlerParseResource(resource)
+	if err != nil {
+		return nil, err
+	}
+
+	return payload, nil
+}
+
+// obrimHandlerLoadResource loads the embedded resource.
+func obrimHandlerLoadResource() ([]byte, error) {
+	resource, err := obrimHandlerEmbeddedResource.ReadFile(
+		obrimHandlerResourceFileName + obrimHandlerResourceFileExt,
+	)
+	if err != nil {
+		return nil, errors.New(ObrimHandlerCodeFailedResourceNotFound)
+	}
+
+	return resource, nil
+}
+
+// obrimHandlerParseResource parses the embedded JSON resource.
+func obrimHandlerParseResource(resource []byte) (map[string]any, error) {
+	var payload map[string]any
+
+	if err := json.Unmarshal(resource, &payload); err != nil {
+		return nil, errors.New(ObrimHandlerCodeFailedInvalidResource)
+	}
+
+	return payload, nil
+}

data/software/glossary/handler.go

@@ -0,0 +1,136 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Handler
+|
+| Purpose:
+|   - Provide a JSON resource provider for the Retriever utility.
+|   - Embed, parse, and expose a complete JSON resource payload.
+|   - Abstract resource storage details from consumers.
+|
+| Guideline:
+|   - Register the handler through retriever.ObrimRetrieverJsonRegister().
+|   - Associate the handler with a unique resource identifier.
+|   - Return the complete parsed resource payload only.
+|   - Delegate retrieval, traversal, filtering, and selection logic to Retriever.
+|   - Do not implement business logic within the handler.
+|   - Do not perform querying, transformation, or resource discovery.
+|
+| Example:
+|   - retriever.ObrimRetrieverJsonRegister(
+|       "software/metadata",
+|       obrimHandlerProvider{},
+|     )
+|   - response := retriever.ObrimRetriever(
+|       "json",
+|       map[string]any{
+|         "resource": "software/metadata",
+|       },
+|     )
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package handler
+
+import (
+	"embed"
+	"encoding/json"
+	"errors"
+
+	"go/module/essential/visible/service/helper/retriever"
+)
+
+// constant
+const (
+	// resource
+	obrimHandlerResourceIdentifier = "software/glossary" // change identifier if needed
+	obrimHandlerResourceFileName   = "resource"          // change file name if needed
+	obrimHandlerResourceFileExt    = ".json"             // do not change
+
+	// success
+	ObrimHandlerCodeSuccessResourceAvailable = "SUCCESS_RESOURCE_AVAILABLE"
+
+	// fail
+	ObrimHandlerCodeFailedResourceNotFound = "FAILED_RESOURCE_NOT_FOUND"
+	ObrimHandlerCodeFailedInvalidResource  = "FAILED_INVALID_RESOURCE"
+)
+
+// obrimHandlerEmbeddedResource stores the embedded resource file.
+//
+//go:embed resource.json
+var obrimHandlerEmbeddedResource embed.FS
+
+// obrimHandlerProvider implements the Retriever JSON provider contract.
+type obrimHandlerProvider struct{}
+
+// Retrieve loads and returns the complete parsed resource payload.
+func (provider obrimHandlerProvider) Retrieve() (any, error) {
+	return obrimHandlerFetch()
+}
+
+// init registers the handler during package initialization.
+func init() {
+	obrimHandlerRegister()
+}
+
+// obrimHandlerRegister registers the handler with Retriever.
+func obrimHandlerRegister() {
+	retriever.ObrimRetrieverJsonRegister(
+		obrimHandlerResourceIdentifier,
+		obrimHandlerProvider{},
+	)
+}
+
+// obrimHandlerFetch loads, parses, and returns the complete resource payload.
+func obrimHandlerFetch() (any, error) {
+	resource, err := obrimHandlerLoadResource()
+	if err != nil {
+		return nil, err
+	}
+
+	payload, err := obrimHandlerParseResource(resource)
+	if err != nil {
+		return nil, err
+	}
+
+	return payload, nil
+}
+
+// obrimHandlerLoadResource loads the embedded resource.
+func obrimHandlerLoadResource() ([]byte, error) {
+	resource, err := obrimHandlerEmbeddedResource.ReadFile(
+		obrimHandlerResourceFileName + obrimHandlerResourceFileExt,
+	)
+	if err != nil {
+		return nil, errors.New(ObrimHandlerCodeFailedResourceNotFound)
+	}
+
+	return resource, nil
+}
+
+// obrimHandlerParseResource parses the embedded JSON resource.
+func obrimHandlerParseResource(resource []byte) (map[string]any, error) {
+	var payload map[string]any
+
+	if err := json.Unmarshal(resource, &payload); err != nil {
+		return nil, errors.New(ObrimHandlerCodeFailedInvalidResource)
+	}
+
+	return payload, nil
+}

data/software/metadata/handler.go

@@ -0,0 +1,136 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Handler
+|
+| Purpose:
+|   - Provide a JSON resource provider for the Retriever utility.
+|   - Embed, parse, and expose a complete JSON resource payload.
+|   - Abstract resource storage details from consumers.
+|
+| Guideline:
+|   - Register the handler through retriever.ObrimRetrieverJsonRegister().
+|   - Associate the handler with a unique resource identifier.
+|   - Return the complete parsed resource payload only.
+|   - Delegate retrieval, traversal, filtering, and selection logic to Retriever.
+|   - Do not implement business logic within the handler.
+|   - Do not perform querying, transformation, or resource discovery.
+|
+| Example:
+|   - retriever.ObrimRetrieverJsonRegister(
+|       "software/metadata",
+|       obrimHandlerProvider{},
+|     )
+|   - response := retriever.ObrimRetriever(
+|       "json",
+|       map[string]any{
+|         "resource": "software/metadata",
+|       },
+|     )
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package handler
+
+import (
+	"embed"
+	"encoding/json"
+	"errors"
+
+	"go/module/essential/visible/service/helper/retriever"
+)
+
+// constant
+const (
+	// resource
+	obrimHandlerResourceIdentifier = "software/metadata" // change identifier if needed
+	obrimHandlerResourceFileName   = "resource"          // change file name if needed
+	obrimHandlerResourceFileExt    = ".json"             // do not change
+
+	// success
+	ObrimHandlerCodeSuccessResourceAvailable = "SUCCESS_RESOURCE_AVAILABLE"
+
+	// fail
+	ObrimHandlerCodeFailedResourceNotFound = "FAILED_RESOURCE_NOT_FOUND"
+	ObrimHandlerCodeFailedInvalidResource  = "FAILED_INVALID_RESOURCE"
+)
+
+// obrimHandlerEmbeddedResource stores the embedded resource file.
+//
+//go:embed resource.json
+var obrimHandlerEmbeddedResource embed.FS
+
+// obrimHandlerProvider implements the Retriever JSON provider contract.
+type obrimHandlerProvider struct{}
+
+// Retrieve loads and returns the complete parsed resource payload.
+func (provider obrimHandlerProvider) Retrieve() (any, error) {
+	return obrimHandlerFetch()
+}
+
+// init registers the handler during package initialization.
+func init() {
+	obrimHandlerRegister()
+}
+
+// obrimHandlerRegister registers the handler with Retriever.
+func obrimHandlerRegister() {
+	retriever.ObrimRetrieverJsonRegister(
+		obrimHandlerResourceIdentifier,
+		obrimHandlerProvider{},
+	)
+}
+
+// obrimHandlerFetch loads, parses, and returns the complete resource payload.
+func obrimHandlerFetch() (any, error) {
+	resource, err := obrimHandlerLoadResource()
+	if err != nil {
+		return nil, err
+	}
+
+	payload, err := obrimHandlerParseResource(resource)
+	if err != nil {
+		return nil, err
+	}
+
+	return payload, nil
+}
+
+// obrimHandlerLoadResource loads the embedded resource.
+func obrimHandlerLoadResource() ([]byte, error) {
+	resource, err := obrimHandlerEmbeddedResource.ReadFile(
+		obrimHandlerResourceFileName + obrimHandlerResourceFileExt,
+	)
+	if err != nil {
+		return nil, errors.New(ObrimHandlerCodeFailedResourceNotFound)
+	}
+
+	return resource, nil
+}
+
+// obrimHandlerParseResource parses the embedded JSON resource.
+func obrimHandlerParseResource(resource []byte) (map[string]any, error) {
+	var payload map[string]any
+
+	if err := json.Unmarshal(resource, &payload); err != nil {
+		return nil, errors.New(ObrimHandlerCodeFailedInvalidResource)
+	}
+
+	return payload, nil
+}

essential/visible/service/helper/cipher/cipher.go

@@ -0,0 +1,808 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Cipher
+|
+| Purpose:
+|   - Provide reusable AES-256 encryption and decryption capabilities
+|     for file-based data processing.
+|
+| Guideline:
+|   - Use encrypt-standard for AES-256 encryption without salt metadata.
+|   - Use encrypt-salted for AES-256 encryption with embedded salt,
+|     signature, and version metadata.
+|   - Use decrypt-standard only for files produced by
+|     encrypt-standard.
+|   - Use decrypt-salted only for files produced by
+|     encrypt-salted.
+|   - Always provide a valid AES-256 compatible key.
+|   - Always provide valid input and output file paths.
+|   - Do not manually modify salted file headers, version
+|     information, or embedded salt metadata.
+|   - Treat generated salt as non-secret metadata required for
+|     successful decryption.
+|
+| Example:
+|   - ObrimCipher(
+|         "encrypt-standard",
+|         map[string]any{
+|             "key":    "<32-byte-key>",
+|             "input":  "./plain.txt",
+|             "output": "./encrypted.bin",
+|         },
+|     )
+|
+|   - ObrimCipher(
+|         "encrypt-salted",
+|         map[string]any{
+|             "key":    "<32-byte-key>",
+|             "input":  "./plain.txt",
+|             "output": "./encrypted.obc",
+|         },
+|     )
+|
+|   - ObrimCipher(
+|         "decrypt-standard",
+|         map[string]any{
+|             "key":    "<32-byte-key>",
+|             "input":  "./encrypted.bin",
+|             "output": "./plain.txt",
+|         },
+|     )
+|
+|   - ObrimCipher(
+|         "decrypt-salted",
+|         map[string]any{
+|             "key":    "<32-byte-key>",
+|             "input":  "./encrypted.obc",
+|             "output": "./plain.txt",
+|         },
+|     )
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package cipher
+
+import (
+	"bytes"
+	"crypto/aes"
+	cryptocipher "crypto/cipher"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/json"
+	"errors"
+	"io"
+	"os"
+	"path/filepath"
+)
+
+const (
+	obrimCipherTypeEncryptStandard = "encrypt-standard"
+	obrimCipherTypeEncryptSalted   = "encrypt-salted"
+	obrimCipherTypeDecryptStandard = "decrypt-standard"
+	obrimCipherTypeDecryptSalted   = "decrypt-salted"
+
+	obrimCipherAlgorithm = "AES-256"
+
+	obrimCipherFormatSignature = "OBRIMCIPHER"
+	obrimCipherFormatVersion   = "1"
+
+	obrimCipherSaltLength  = 32
+	obrimCipherNonceLength = 12
+
+	ObrimCipherCodeSuccessEncryptStandard = "SUCCESS_ENCRYPT_STANDARD"
+	ObrimCipherCodeSuccessEncryptSalted   = "SUCCESS_ENCRYPT_SALTED"
+	ObrimCipherCodeSuccessDecryptStandard = "SUCCESS_DECRYPT_STANDARD"
+	ObrimCipherCodeSuccessDecryptSalted   = "SUCCESS_DECRYPT_SALTED"
+
+	ObrimCipherCodeFailedInvalidType         = "FAILED_INVALID_TYPE"
+	ObrimCipherCodeFailedInvalidConfig       = "FAILED_INVALID_CONFIGURATION"
+	ObrimCipherCodeFailedInvalidKey          = "FAILED_INVALID_KEY"
+	ObrimCipherCodeFailedInvalidInputPath    = "FAILED_INVALID_INPUT_PATH"
+	ObrimCipherCodeFailedInvalidOutputPath   = "FAILED_INVALID_OUTPUT_PATH"
+	ObrimCipherCodeFailedInputAccess         = "FAILED_INPUT_ACCESS"
+	ObrimCipherCodeFailedOutputWrite         = "FAILED_OUTPUT_WRITE"
+	ObrimCipherCodeFailedEncryption          = "FAILED_ENCRYPTION"
+	ObrimCipherCodeFailedDecryption          = "FAILED_DECRYPTION"
+	ObrimCipherCodeFailedSaltGeneration      = "FAILED_SALT_GENERATION"
+	ObrimCipherCodeFailedSignatureValidation = "FAILED_SIGNATURE_VALIDATION"
+	ObrimCipherCodeFailedVersionValidation   = "FAILED_VERSION_VALIDATION"
+	ObrimCipherCodeFailedSaltExtraction      = "FAILED_SALT_EXTRACTION"
+	ObrimCipherCodeFailedPayloadExtraction   = "FAILED_PAYLOAD_EXTRACTION"
+)
+
+// ObrimCipherConfig defines utility configuration.
+type ObrimCipherConfig struct {
+	Key    string `json:"key"`
+	Input  string `json:"input"`
+	Output string `json:"output"`
+}
+
+// ObrimCipherResponse defines standardized utility response.
+type ObrimCipherResponse struct {
+	Status  bool           `json:"status"`
+	Code    string         `json:"code"`
+	Payload map[string]any `json:"payload"`
+}
+
+// obrimCipherHeader defines encrypted file metadata.
+type obrimCipherHeader struct {
+	Signature string
+	Version   string
+}
+
+// ObrimCipher executes encryption and decryption workflows.
+func ObrimCipher(
+	cipherType string,
+	config map[string]any,
+) map[string]any {
+	if !obrimCipherValidateType(cipherType) {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedInvalidType,
+			nil,
+		)
+	}
+
+	if !obrimCipherValidateConfig(config) {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedInvalidConfig,
+			nil,
+		)
+	}
+
+	key := config["key"].(string)
+
+	if !obrimCipherValidateKey(key) {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedInvalidKey,
+			nil,
+		)
+	}
+
+	inputPath, inputOk := obrimCipherResolvePath(
+		config["input"].(string),
+	)
+
+	if !inputOk {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedInvalidInputPath,
+			nil,
+		)
+	}
+
+	outputPath, outputOk := obrimCipherResolvePath(
+		config["output"].(string),
+	)
+
+	if !outputOk {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedInvalidOutputPath,
+			nil,
+		)
+	}
+
+	inputData, readErr := obrimCipherReadInput(inputPath)
+	if readErr != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedInputAccess,
+			nil,
+		)
+	}
+
+	switch cipherType {
+	case obrimCipherTypeEncryptStandard:
+		return obrimCipherEncryptStandard(
+			key,
+			inputPath,
+			outputPath,
+			inputData,
+		)
+
+	case obrimCipherTypeEncryptSalted:
+		return obrimCipherEncryptSalted(
+			key,
+			inputPath,
+			outputPath,
+			inputData,
+		)
+
+	case obrimCipherTypeDecryptStandard:
+		return obrimCipherDecryptStandard(
+			key,
+			inputPath,
+			outputPath,
+			inputData,
+		)
+
+	case obrimCipherTypeDecryptSalted:
+		return obrimCipherDecryptSalted(
+			key,
+			inputPath,
+			outputPath,
+			inputData,
+		)
+	}
+
+	return obrimCipherBuildResponse(
+		false,
+		ObrimCipherCodeFailedInvalidType,
+		nil,
+	)
+}
+
+// obrimCipherValidateType validates operation type.
+func obrimCipherValidateType(cipherType string) bool {
+	switch cipherType {
+	case obrimCipherTypeEncryptStandard:
+		return true
+
+	case obrimCipherTypeEncryptSalted:
+		return true
+
+	case obrimCipherTypeDecryptStandard:
+		return true
+
+	case obrimCipherTypeDecryptSalted:
+		return true
+
+	default:
+		return false
+	}
+}
+
+// obrimCipherValidateConfig validates configuration.
+func obrimCipherValidateConfig(config map[string]any) bool {
+	if config == nil {
+		return false
+	}
+
+	keyValue, keyExists := config["key"]
+	if !keyExists {
+		return false
+	}
+
+	inputValue, inputExists := config["input"]
+	if !inputExists {
+		return false
+	}
+
+	outputValue, outputExists := config["output"]
+	if !outputExists {
+		return false
+	}
+
+	key, keyOk := keyValue.(string)
+	if !keyOk || key == "" {
+		return false
+	}
+
+	input, inputOk := inputValue.(string)
+	if !inputOk || input == "" {
+		return false
+	}
+
+	output, outputOk := outputValue.(string)
+	if !outputOk || output == "" {
+		return false
+	}
+
+	return true
+}
+
+// obrimCipherValidateKey validates AES-256 key requirements.
+func obrimCipherValidateKey(key string) bool {
+	return len([]byte(key)) == 32
+}
+
+// obrimCipherResolvePath resolves a path to absolute form.
+func obrimCipherResolvePath(path string) (string, bool) {
+	resolvedPath, err := filepath.Abs(path)
+	if err != nil {
+		return "", false
+	}
+
+	return resolvedPath, true
+}
+
+// obrimCipherReadInput reads source file content.
+func obrimCipherReadInput(path string) ([]byte, error) {
+	return os.ReadFile(path)
+}
+
+// obrimCipherWriteOutput writes processed output safely.
+func obrimCipherWriteOutput(
+	path string,
+	data []byte,
+) error {
+	var directory = filepath.Dir(path)
+
+	if err := os.MkdirAll(directory, 0755); err != nil {
+		return err
+	}
+
+	var temporaryFile, createErr = os.CreateTemp(
+		directory,
+		".obrim-cipher-*",
+	)
+
+	if createErr != nil {
+		return createErr
+	}
+
+	var temporaryPath = temporaryFile.Name()
+
+	defer func() {
+		_ = temporaryFile.Close()
+	}()
+
+	if _, err := temporaryFile.Write(data); err != nil {
+		_ = os.Remove(temporaryPath)
+		return err
+	}
+
+	if err := temporaryFile.Sync(); err != nil {
+		_ = os.Remove(temporaryPath)
+		return err
+	}
+
+	if err := temporaryFile.Close(); err != nil {
+		_ = os.Remove(temporaryPath)
+		return err
+	}
+
+	return os.Rename(temporaryPath, path)
+}
+
+// obrimCipherBuildResponse builds standardized responses.
+func obrimCipherBuildResponse(
+	status bool,
+	code string,
+	payload map[string]any,
+) map[string]any {
+	return map[string]any{
+		"status":  status,
+		"code":    code,
+		"payload": payload,
+	}
+}
+
+// obrimCipherEncryptStandard encrypts data without salt metadata.
+func obrimCipherEncryptStandard(
+	key string,
+	inputPath string,
+	outputPath string,
+	inputData []byte,
+) map[string]any {
+	encryptedData, err := obrimCipherEncryptAES(
+		[]byte(key),
+		inputData,
+	)
+
+	if err != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedEncryption,
+			nil,
+		)
+	}
+
+	if err := obrimCipherWriteOutput(
+		outputPath,
+		encryptedData,
+	); err != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedOutputWrite,
+			nil,
+		)
+	}
+
+	return obrimCipherBuildResponse(
+		true,
+		ObrimCipherCodeSuccessEncryptStandard,
+		map[string]any{
+			"operation":  obrimCipherTypeEncryptStandard,
+			"algorithm":  obrimCipherAlgorithm,
+			"inputPath":  inputPath,
+			"outputPath": outputPath,
+		},
+	)
+}
+
+// obrimCipherGenerateSalt generates a cryptographic salt.
+func obrimCipherGenerateSalt() ([]byte, error) {
+	var salt = make([]byte, obrimCipherSaltLength)
+
+	_, err := io.ReadFull(rand.Reader, salt)
+
+	return salt, err
+}
+
+// obrimCipherBuildHeader builds encrypted file header.
+func obrimCipherBuildHeader() []byte {
+	var buffer bytes.Buffer
+
+	buffer.WriteString(obrimCipherFormatSignature)
+	buffer.WriteByte(0)
+
+	buffer.WriteString(obrimCipherFormatVersion)
+	buffer.WriteByte(0)
+
+	return buffer.Bytes()
+}
+
+// obrimCipherEncryptSalted encrypts data with embedded salt metadata.
+func obrimCipherEncryptSalted(
+	key string,
+	inputPath string,
+	outputPath string,
+	inputData []byte,
+) map[string]any {
+	salt, saltErr := obrimCipherGenerateSalt()
+
+	if saltErr != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedSaltGeneration,
+			nil,
+		)
+	}
+
+	var derivedKey = sha256.Sum256(
+		append([]byte(key), salt...),
+	)
+
+	encryptedData, err := obrimCipherEncryptAES(
+		derivedKey[:],
+		inputData,
+	)
+
+	if err != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedEncryption,
+			nil,
+		)
+	}
+
+	var header = obrimCipherBuildHeader()
+
+	var outputData []byte
+	outputData = append(outputData, header...)
+	outputData = append(outputData, salt...)
+	outputData = append(outputData, encryptedData...)
+
+	if err := obrimCipherWriteOutput(
+		outputPath,
+		outputData,
+	); err != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedOutputWrite,
+			nil,
+		)
+	}
+
+	return obrimCipherBuildResponse(
+		true,
+		ObrimCipherCodeSuccessEncryptSalted,
+		map[string]any{
+			"operation":  obrimCipherTypeEncryptSalted,
+			"algorithm":  obrimCipherAlgorithm,
+			"format":     obrimCipherFormatSignature,
+			"version":    obrimCipherFormatVersion,
+			"inputPath":  inputPath,
+			"outputPath": outputPath,
+		},
+	)
+}
+
+// obrimCipherDecryptStandard decrypts AES-256 encrypted data.
+func obrimCipherDecryptStandard(
+	key string,
+	inputPath string,
+	outputPath string,
+	inputData []byte,
+) map[string]any {
+	decryptedData, err := obrimCipherDecryptAES(
+		[]byte(key),
+		inputData,
+	)
+
+	if err != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedDecryption,
+			nil,
+		)
+	}
+
+	if err := obrimCipherWriteOutput(
+		outputPath,
+		decryptedData,
+	); err != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedOutputWrite,
+			nil,
+		)
+	}
+
+	return obrimCipherBuildResponse(
+		true,
+		ObrimCipherCodeSuccessDecryptStandard,
+		map[string]any{
+			"operation":  obrimCipherTypeDecryptStandard,
+			"algorithm":  obrimCipherAlgorithm,
+			"inputPath":  inputPath,
+			"outputPath": outputPath,
+		},
+	)
+}
+
+// obrimCipherParseHeader parses encrypted metadata.
+func obrimCipherParseHeader(
+	data []byte,
+) (obrimCipherHeader, int, error) {
+	var signatureBytes = []byte(obrimCipherFormatSignature)
+
+	if len(data) < len(signatureBytes)+1 {
+		return obrimCipherHeader{}, 0, errors.New("signature")
+	}
+
+	if !bytes.Equal(
+		data[:len(signatureBytes)],
+		signatureBytes,
+	) {
+		return obrimCipherHeader{}, 0, errors.New("signature")
+	}
+
+	var offset = len(signatureBytes)
+
+	if data[offset] != 0 {
+		return obrimCipherHeader{}, 0, errors.New("signature")
+	}
+
+	offset++
+
+	var versionBytes = []byte(obrimCipherFormatVersion)
+
+	if len(data) < offset+len(versionBytes)+1 {
+		return obrimCipherHeader{}, 0, errors.New("version")
+	}
+
+	if !bytes.Equal(
+		data[offset:offset+len(versionBytes)],
+		versionBytes,
+	) {
+		return obrimCipherHeader{}, 0, errors.New("version")
+	}
+
+	offset += len(versionBytes)
+
+	if data[offset] != 0 {
+		return obrimCipherHeader{}, 0, errors.New("version")
+	}
+
+	offset++
+
+	return obrimCipherHeader{
+		Signature: obrimCipherFormatSignature,
+		Version:   obrimCipherFormatVersion,
+	}, offset, nil
+}
+
+// obrimCipherExtractSalt extracts embedded salt.
+func obrimCipherExtractSalt(
+	data []byte,
+	offset int,
+) ([]byte, error) {
+	if len(data) < offset+obrimCipherSaltLength {
+		return nil, errors.New("salt")
+	}
+
+	return data[offset : offset+obrimCipherSaltLength], nil
+}
+
+// obrimCipherExtractPayload extracts encrypted payload.
+func obrimCipherExtractPayload(
+	data []byte,
+	offset int,
+) ([]byte, error) {
+	var payloadOffset = offset + obrimCipherSaltLength
+
+	if len(data) <= payloadOffset {
+		return nil, errors.New("payload")
+	}
+
+	return data[payloadOffset:], nil
+}
+
+// obrimCipherDecryptSalted decrypts AES-256 encrypted data using extracted salt.
+func obrimCipherDecryptSalted(
+	key string,
+	inputPath string,
+	outputPath string,
+	inputData []byte,
+) map[string]any {
+	header, offset, headerErr := obrimCipherParseHeader(
+		inputData,
+	)
+
+	if headerErr != nil {
+		if headerErr.Error() == "signature" {
+			return obrimCipherBuildResponse(
+				false,
+				ObrimCipherCodeFailedSignatureValidation,
+				nil,
+			)
+		}
+
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedVersionValidation,
+			nil,
+		)
+	}
+
+	salt, saltErr := obrimCipherExtractSalt(
+		inputData,
+		offset,
+	)
+
+	if saltErr != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedSaltExtraction,
+			nil,
+		)
+	}
+
+	payload, payloadErr := obrimCipherExtractPayload(
+		inputData,
+		offset,
+	)
+
+	if payloadErr != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedPayloadExtraction,
+			nil,
+		)
+	}
+
+	var derivedKey = sha256.Sum256(
+		append([]byte(key), salt...),
+	)
+
+	decryptedData, decryptErr := obrimCipherDecryptAES(
+		derivedKey[:],
+		payload,
+	)
+
+	if decryptErr != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedDecryption,
+			nil,
+		)
+	}
+
+	if err := obrimCipherWriteOutput(
+		outputPath,
+		decryptedData,
+	); err != nil {
+		return obrimCipherBuildResponse(
+			false,
+			ObrimCipherCodeFailedOutputWrite,
+			nil,
+		)
+	}
+
+	return obrimCipherBuildResponse(
+		true,
+		ObrimCipherCodeSuccessDecryptSalted,
+		map[string]any{
+			"operation":  obrimCipherTypeDecryptSalted,
+			"algorithm":  obrimCipherAlgorithm,
+			"format":     header.Signature,
+			"version":    header.Version,
+			"inputPath":  inputPath,
+			"outputPath": outputPath,
+		},
+	)
+}
+
+// obrimCipherEncryptAES performs AES-256 encryption.
+func obrimCipherEncryptAES(
+	key []byte,
+	data []byte,
+) ([]byte, error) {
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+
+	gcm, err := cryptocipher.NewGCM(block)
+	if err != nil {
+		return nil, err
+	}
+
+	var nonce = make([]byte, obrimCipherNonceLength)
+
+	if _, err := io.ReadFull(rand.Reader, nonce); err != nil {
+		return nil, err
+	}
+
+	var encryptedData = gcm.Seal(
+		nil,
+		nonce,
+		data,
+		nil,
+	)
+
+	var result []byte
+	result = append(result, nonce...)
+	result = append(result, encryptedData...)
+
+	return result, nil
+}
+
+// obrimCipherDecryptAES performs AES-256 decryption.
+func obrimCipherDecryptAES(
+	key []byte,
+	data []byte,
+) ([]byte, error) {
+	if len(data) < obrimCipherNonceLength {
+		return nil, errors.New("invalid payload")
+	}
+
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+
+	gcm, err := cryptocipher.NewGCM(block)
+	if err != nil {
+		return nil, err
+	}
+
+	var nonce = data[:obrimCipherNonceLength]
+	var payload = data[obrimCipherNonceLength:]
+
+	return gcm.Open(
+		nil,
+		nonce,
+		payload,
+		nil,
+	)
+}
+
+// obrimCipherMarshalResponse marshals response data.
+func obrimCipherMarshalResponse(
+	response ObrimCipherResponse,
+) ([]byte, error) {
+	return json.Marshal(response)
+}

essential/visible/service/helper/codec/codec.go

@@ -0,0 +1,686 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Codec
+|
+| Purpose:
+|   - Provide reusable encoding and decoding capabilities for framework
+|     and software services.
+|
+| Guideline:
+|   - Use ObrimCodec() as the public entry point for all codec operations.
+|   - Always provide a valid operation type and configuration map.
+|   - Use supported formats only: base8, base10, base16, base32,
+|     base64, and sqids.
+|   - Validate all inputs before processing encoding or decoding requests.
+|   - Use charset and salt values consistently between encode and decode
+|     operations.
+|   - Use case configuration for non-sqids formats.
+|   - Use length configuration for sqids format.
+|   - Treat empty sqids inputs and outputs as operation failures.
+|   - Consume responses through the standardized status, code, and
+|     payload structure.
+|
+| Example:
+|   - ObrimCodec("encode", config)
+|   - ObrimCodec("decode", config)
+|   - ObrimCodec("encode", map[string]any{
+|       "format": "base64",
+|       "data": "example",
+|       "charset": "",
+|       "salt": "",
+|       "case": "lower",
+|     })
+|   - ObrimCodec("decode", map[string]any{
+|       "format": "sqids",
+|       "data": "abc123",
+|       "charset": "abcdefghijklmnopqrstuvwxyz",
+|       "salt": "",
+|       "length": 8,
+|     })
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package codec
+
+import (
+	"encoding/base32"
+	"encoding/base64"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"math/big"
+	"strconv"
+	"strings"
+
+	"github.com/sqids/sqids-go"
+)
+
+const (
+	obrimCodecTypeEncode = "encode"
+	obrimCodecTypeDecode = "decode"
+
+	obrimCodecFormatBase8  = "base8"
+	obrimCodecFormatBase10 = "base10"
+	obrimCodecFormatBase16 = "base16"
+	obrimCodecFormatBase32 = "base32"
+	obrimCodecFormatBase64 = "base64"
+	obrimCodecFormatSqids  = "sqids"
+
+	obrimCodecCaseLower = "lower"
+	obrimCodecCaseUpper = "upper"
+
+	ObrimCodecCodeSuccessEncode = "SUCCESS_ENCODE"
+	ObrimCodecCodeSuccessDecode = "SUCCESS_DECODE"
+
+	ObrimCodecCodeFailedValidation           = "FAILED_VALIDATION"
+	ObrimCodecCodeFailedUnsupportedType      = "FAILED_UNSUPPORTED_TYPE"
+	ObrimCodecCodeFailedUnsupportedFormat    = "FAILED_UNSUPPORTED_FORMAT"
+	ObrimCodecCodeFailedMissingConfiguration = "FAILED_MISSING_CONFIGURATION"
+	ObrimCodecCodeFailedInvalidConfiguration = "FAILED_INVALID_CONFIGURATION"
+	ObrimCodecCodeFailedOperation            = "FAILED_OPERATION"
+)
+
+// ObrimCodecResponse defines the standardized utility response.
+type ObrimCodecResponse struct {
+	Status  bool           `json:"status"`
+	Code    string         `json:"code"`
+	Payload map[string]any `json:"payload"`
+}
+
+// obrimCodecConfiguration stores validated codec configuration.
+type obrimCodecConfiguration struct {
+	Format  string
+	Data    any
+	Charset string
+	Salt    string
+	Case    string
+	Length  int
+}
+
+// ObrimCodec validates configuration, dispatches codec operations, and returns structured results.
+func ObrimCodec(codecType string, config map[string]any) map[string]any {
+	validatedConfig, code := obrimCodecValidation(codecType, config)
+	if code != "" {
+		return obrimCodecBuildResponse(false, code, nil)
+	}
+
+	value, err := obrimCodecDispatch(codecType, validatedConfig)
+	if err != nil {
+		return obrimCodecBuildResponse(
+			false,
+			ObrimCodecCodeFailedOperation,
+			nil,
+		)
+	}
+
+	var successCode string
+
+	switch codecType {
+	case obrimCodecTypeEncode:
+		successCode = ObrimCodecCodeSuccessEncode
+
+	case obrimCodecTypeDecode:
+		successCode = ObrimCodecCodeSuccessDecode
+	}
+
+	return obrimCodecBuildResponse(
+		true,
+		successCode,
+		map[string]any{
+			"operation": codecType,
+			"format":    validatedConfig.Format,
+			"value":     value,
+		},
+	)
+}
+
+// obrimCodecValidation validates required parameters, supported operations, formats, and parameter types.
+func obrimCodecValidation(
+	codecType string,
+	config map[string]any,
+) (*obrimCodecConfiguration, string) {
+	if config == nil {
+		return nil, ObrimCodecCodeFailedMissingConfiguration
+	}
+
+	switch codecType {
+	case obrimCodecTypeEncode:
+	case obrimCodecTypeDecode:
+	default:
+		return nil, ObrimCodecCodeFailedUnsupportedType
+	}
+
+	formatValue, exists := config["format"]
+	if !exists {
+		return nil, ObrimCodecCodeFailedMissingConfiguration
+	}
+
+	format, ok := formatValue.(string)
+	if !ok || strings.TrimSpace(format) == "" {
+		return nil, ObrimCodecCodeFailedInvalidConfiguration
+	}
+
+	switch format {
+	case obrimCodecFormatBase8:
+	case obrimCodecFormatBase10:
+	case obrimCodecFormatBase16:
+	case obrimCodecFormatBase32:
+	case obrimCodecFormatBase64:
+	case obrimCodecFormatSqids:
+	default:
+		return nil, ObrimCodecCodeFailedUnsupportedFormat
+	}
+
+	dataValue, exists := config["data"]
+	if !exists {
+		return nil, ObrimCodecCodeFailedMissingConfiguration
+	}
+
+	switch dataValue.(type) {
+	case string:
+	case []byte:
+	default:
+		return nil, ObrimCodecCodeFailedInvalidConfiguration
+	}
+
+	charsetValue, exists := config["charset"]
+	if !exists {
+		return nil, ObrimCodecCodeFailedMissingConfiguration
+	}
+
+	charset, ok := charsetValue.(string)
+	if !ok {
+		return nil, ObrimCodecCodeFailedInvalidConfiguration
+	}
+
+	saltValue, exists := config["salt"]
+	if !exists {
+		return nil, ObrimCodecCodeFailedMissingConfiguration
+	}
+
+	salt, ok := saltValue.(string)
+	if !ok {
+		return nil, ObrimCodecCodeFailedInvalidConfiguration
+	}
+
+	var validatedConfig = &obrimCodecConfiguration{
+		Format:  format,
+		Data:    dataValue,
+		Charset: charset,
+		Salt:    salt,
+	}
+
+	if format == obrimCodecFormatSqids {
+		lengthValue, exists := config["length"]
+		if !exists {
+			return nil, ObrimCodecCodeFailedMissingConfiguration
+		}
+
+		switch value := lengthValue.(type) {
+		case int:
+			validatedConfig.Length = value
+
+		case int8:
+			validatedConfig.Length = int(value)
+
+		case int16:
+			validatedConfig.Length = int(value)
+
+		case int32:
+			validatedConfig.Length = int(value)
+
+		case int64:
+			validatedConfig.Length = int(value)
+
+		case float64:
+			validatedConfig.Length = int(value)
+
+		default:
+			return nil, ObrimCodecCodeFailedInvalidConfiguration
+		}
+
+		if validatedConfig.Length < 0 {
+			return nil, ObrimCodecCodeFailedInvalidConfiguration
+		}
+	} else {
+		caseValue, exists := config["case"]
+		if !exists {
+			return nil, ObrimCodecCodeFailedMissingConfiguration
+		}
+
+		caseRule, ok := caseValue.(string)
+		if !ok {
+			return nil, ObrimCodecCodeFailedInvalidConfiguration
+		}
+
+		switch caseRule {
+		case obrimCodecCaseLower:
+		case obrimCodecCaseUpper:
+		default:
+			return nil, ObrimCodecCodeFailedInvalidConfiguration
+		}
+
+		validatedConfig.Case = caseRule
+	}
+
+	return validatedConfig, ""
+}
+
+// obrimCodecDispatch routes validated requests to the appropriate codec implementation.
+func obrimCodecDispatch(
+	codecType string,
+	config *obrimCodecConfiguration,
+) (string, error) {
+	switch codecType {
+	case obrimCodecTypeEncode:
+		switch config.Format {
+		case obrimCodecFormatBase8:
+			return obrimCodecEncodeBase8(config)
+
+		case obrimCodecFormatBase10:
+			return obrimCodecEncodeBase10(config)
+
+		case obrimCodecFormatBase16:
+			return obrimCodecEncodeBase16(config)
+
+		case obrimCodecFormatBase32:
+			return obrimCodecEncodeBase32(config)
+
+		case obrimCodecFormatBase64:
+			return obrimCodecEncodeBase64(config)
+
+		case obrimCodecFormatSqids:
+			return obrimCodecEncodeSqids(config)
+		}
+
+	case obrimCodecTypeDecode:
+		switch config.Format {
+		case obrimCodecFormatBase8:
+			return obrimCodecDecodeBase8(config)
+
+		case obrimCodecFormatBase10:
+			return obrimCodecDecodeBase10(config)
+
+		case obrimCodecFormatBase16:
+			return obrimCodecDecodeBase16(config)
+
+		case obrimCodecFormatBase32:
+			return obrimCodecDecodeBase32(config)
+
+		case obrimCodecFormatBase64:
+			return obrimCodecDecodeBase64(config)
+
+		case obrimCodecFormatSqids:
+			return obrimCodecDecodeSqids(config)
+		}
+	}
+
+	return "", obrimCodecError("unsupported dispatch")
+}
+
+// obrimCodecBuildResponse builds a standard response.
+func obrimCodecBuildResponse(
+	status bool,
+	code string,
+	payload map[string]any,
+) map[string]any {
+	return map[string]any{
+		"status":  status,
+		"code":    code,
+		"payload": payload,
+	}
+}
+
+// obrimCodecNormalizeInput converts supported input types into string form.
+func obrimCodecNormalizeInput(data any) string {
+	switch value := data.(type) {
+	case string:
+		return value
+
+	case []byte:
+		return string(value)
+
+	default:
+		return ""
+	}
+}
+
+// obrimCodecApplyTransform applies charset and salt transformations.
+func obrimCodecApplyTransform(
+	value string,
+	charset string,
+	salt string,
+) string {
+	return charset + salt + value
+}
+
+// obrimCodecReverseTransform reverses charset and salt transformations.
+func obrimCodecReverseTransform(
+	value string,
+	charset string,
+	salt string,
+) string {
+	var prefix = charset + salt
+
+	return strings.TrimPrefix(value, prefix)
+}
+
+// obrimCodecApplyCase applies output casing.
+func obrimCodecApplyCase(
+	value string,
+	caseRule string,
+) string {
+	switch caseRule {
+	case obrimCodecCaseUpper:
+		return strings.ToUpper(value)
+
+	default:
+		return strings.ToLower(value)
+	}
+}
+
+// obrimCodecEncodeBase8 encodes data using Base8 encoding.
+func obrimCodecEncodeBase8(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var input = obrimCodecApplyTransform(
+		obrimCodecNormalizeInput(config.Data),
+		config.Charset,
+		config.Salt,
+	)
+
+	var builder strings.Builder
+
+	for _, value := range []byte(input) {
+		builder.WriteString(fmt.Sprintf("%03o", value))
+	}
+
+	return obrimCodecApplyCase(
+		builder.String(),
+		config.Case,
+	), nil
+}
+
+// obrimCodecDecodeBase8 decodes Base8 encoded data.
+func obrimCodecDecodeBase8(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var input = strings.ToLower(
+		obrimCodecNormalizeInput(config.Data),
+	)
+
+	if len(input)%3 != 0 {
+		return "", obrimCodecError("invalid base8 data")
+	}
+
+	var output []byte
+
+	for index := 0; index < len(input); index += 3 {
+		value, err := strconv.ParseUint(
+			input[index:index+3],
+			8,
+			8,
+		)
+		if err != nil {
+			return "", err
+		}
+
+		output = append(output, byte(value))
+	}
+
+	return obrimCodecReverseTransform(
+		string(output),
+		config.Charset,
+		config.Salt,
+	), nil
+}
+
+// obrimCodecEncodeBase10 encodes data using Base10 encoding.
+func obrimCodecEncodeBase10(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var input = obrimCodecApplyTransform(
+		obrimCodecNormalizeInput(config.Data),
+		config.Charset,
+		config.Salt,
+	)
+
+	var value = new(big.Int).SetBytes([]byte(input))
+
+	return obrimCodecApplyCase(
+		value.Text(10),
+		config.Case,
+	), nil
+}
+
+// obrimCodecDecodeBase10 decodes Base10 encoded data.
+func obrimCodecDecodeBase10(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var value = new(big.Int)
+
+	if _, ok := value.SetString(
+		obrimCodecNormalizeInput(config.Data),
+		10,
+	); !ok {
+		return "", obrimCodecError("invalid base10 data")
+	}
+
+	return obrimCodecReverseTransform(
+		string(value.Bytes()),
+		config.Charset,
+		config.Salt,
+	), nil
+}
+
+// obrimCodecEncodeBase16 encodes data using Base16 encoding.
+func obrimCodecEncodeBase16(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var input = obrimCodecApplyTransform(
+		obrimCodecNormalizeInput(config.Data),
+		config.Charset,
+		config.Salt,
+	)
+
+	var output = hex.EncodeToString([]byte(input))
+
+	return obrimCodecApplyCase(
+		output,
+		config.Case,
+	), nil
+}
+
+// obrimCodecDecodeBase16 decodes Base16 encoded data.
+func obrimCodecDecodeBase16(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var output, err = hex.DecodeString(
+		obrimCodecNormalizeInput(config.Data),
+	)
+	if err != nil {
+		return "", err
+	}
+
+	return obrimCodecReverseTransform(
+		string(output),
+		config.Charset,
+		config.Salt,
+	), nil
+}
+
+// obrimCodecEncodeBase32 encodes data using Base32 encoding.
+func obrimCodecEncodeBase32(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var input = obrimCodecApplyTransform(
+		obrimCodecNormalizeInput(config.Data),
+		config.Charset,
+		config.Salt,
+	)
+
+	var output = base32.StdEncoding.EncodeToString(
+		[]byte(input),
+	)
+
+	return obrimCodecApplyCase(
+		output,
+		config.Case,
+	), nil
+}
+
+// obrimCodecDecodeBase32 decodes Base32 encoded data.
+func obrimCodecDecodeBase32(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var output, err = base32.StdEncoding.DecodeString(
+		strings.ToUpper(
+			obrimCodecNormalizeInput(config.Data),
+		),
+	)
+	if err != nil {
+		return "", err
+	}
+
+	return obrimCodecReverseTransform(
+		string(output),
+		config.Charset,
+		config.Salt,
+	), nil
+}
+
+// obrimCodecEncodeBase64 encodes data using Base64 encoding.
+func obrimCodecEncodeBase64(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var input = obrimCodecApplyTransform(
+		obrimCodecNormalizeInput(config.Data),
+		config.Charset,
+		config.Salt,
+	)
+
+	var output = base64.StdEncoding.EncodeToString(
+		[]byte(input),
+	)
+
+	return obrimCodecApplyCase(
+		output,
+		config.Case,
+	), nil
+}
+
+// obrimCodecDecodeBase64 decodes Base64 encoded data.
+func obrimCodecDecodeBase64(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var output, err = base64.StdEncoding.DecodeString(
+		obrimCodecNormalizeInput(config.Data),
+	)
+	if err != nil {
+		return "", err
+	}
+
+	return obrimCodecReverseTransform(
+		string(output),
+		config.Charset,
+		config.Salt,
+	), nil
+}
+
+// obrimCodecEncodeSqids encodes data using Sqids encoding with minimum length enforcement.
+func obrimCodecEncodeSqids(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var input = obrimCodecApplyTransform(
+		obrimCodecNormalizeInput(config.Data),
+		config.Charset,
+		config.Salt,
+	)
+
+	var numbers = make([]uint64, 0, len(input))
+
+	for _, value := range []byte(input) {
+		numbers = append(numbers, uint64(value))
+	}
+
+	if len(numbers) == 0 {
+		return "", obrimCodecError("empty sqids input")
+	}
+
+	var sqidsInstance, err = sqids.New(
+		sqids.Options{
+			Alphabet:  config.Charset,
+			MinLength: uint8(config.Length),
+		},
+	)
+	if err != nil {
+		return "", err
+	}
+
+	return sqidsInstance.Encode(numbers)
+}
+
+// obrimCodecDecodeSqids decodes Sqids encoded data using deterministic length validation.
+func obrimCodecDecodeSqids(
+	config *obrimCodecConfiguration,
+) (string, error) {
+	var sqidsInstance, err = sqids.New(
+		sqids.Options{
+			Alphabet:  config.Charset,
+			MinLength: uint8(config.Length),
+		},
+	)
+	if err != nil {
+		return "", err
+	}
+
+	var numbers = sqidsInstance.Decode(
+		obrimCodecNormalizeInput(config.Data),
+	)
+
+	if len(numbers) == 0 {
+		return "", obrimCodecError(
+			"invalid or empty sqids data",
+		)
+	}
+
+	var output = make([]byte, 0, len(numbers))
+
+	for _, value := range numbers {
+		if value > 255 {
+			return "", obrimCodecError(
+				"decoded sqids value exceeds byte range",
+			)
+		}
+
+		output = append(output, byte(value))
+	}
+
+	return obrimCodecReverseTransform(
+		string(output),
+		config.Charset,
+		config.Salt,
+	), nil
+}
+
+// obrimCodecError formats internal errors.
+func obrimCodecError(message string) error {
+	return errors.New(message)
+}

essential/visible/service/helper/datetime/datetime.go

@@ -0,0 +1,329 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Datetime Utility
+|
+| Purpose:
+|   - Retrieve the current date and time from either the host system
+|     clock or a trusted framework-managed NTP source and return the
+|     result using a framework-supported date/time format pattern.
+|
+| Guideline:
+|   - Use ObrimDatetime() as the primary entry point.
+|   - Always provide a valid datetime type.
+|   - Supported types are "local" and "trusted".
+|   - Always provide the "format" configuration key.
+|   - Use only framework-supported format patterns.
+|   - Expect all successful results to be returned as strings.
+|   - Use "local" when host system time is sufficient.
+|   - Use "trusted" when synchronized network time is required.
+|   - Handle both success and failure response codes.
+|
+| Example:
+|   - ObrimDatetime(
+|         "local",
+|         map[string]any{
+|             "format": "yyyy-MM-dd",
+|         },
+|     )
+|
+|   - ObrimDatetime(
+|         "trusted",
+|         map[string]any{
+|             "format": "yyyy-MM-dd HH:mm:ss z",
+|         },
+|     )
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package datetime
+
+import (
+	"encoding/binary"
+	"fmt"
+	"log"
+	"net"
+	"strconv"
+	"time"
+)
+
+const (
+	obrimDatetimeTypeLocal   = "local"
+	obrimDatetimeTypeTrusted = "trusted"
+
+	ObrimDatetimeCodeSuccessRetrieved = "SUCCESS_DATETIME_RETRIEVED"
+
+	ObrimDatetimeCodeFailedInvalidType          = "FAILED_INVALID_TYPE"
+	ObrimDatetimeCodeFailedInvalidFormat        = "FAILED_INVALID_FORMAT"
+	ObrimDatetimeCodeFailedTrustedTimeRetrieval = "FAILED_TRUSTED_TIME_RETRIEVAL"
+)
+
+const obrimDatetimeTrustedNtpPool = "pool.ntp.org:123"
+
+// ObrimDatetimePayload defines the success payload structure.
+type ObrimDatetimePayload struct {
+	Value string `json:"value"`
+}
+
+// ObrimDatetimeResponse defines the utility response structure.
+type ObrimDatetimeResponse struct {
+	Status  bool                  `json:"status"`
+	Code    string                `json:"code"`
+	Payload *ObrimDatetimePayload `json:"payload"`
+}
+
+// obrimDatetimePatternMap stores framework-supported format mappings.
+var obrimDatetimePatternMap = map[string]string{
+	"yyyy-MM-dd":               "2006-01-02",
+	"MMM dd, yyyy":             "Jan 02, 2006",
+	"MMMM dd, yyyy":            "January 02, 2006",
+	"EEE, MMM dd, yyyy":        "Mon, Jan 02, 2006",
+	"EEE, MMMM dd, yyyy":       "Mon, January 02, 2006",
+	"EEEE, MMM dd, yyyy":       "Monday, Jan 02, 2006",
+	"EEEE, MMMM dd, yyyy":      "Monday, January 02, 2006",
+	"HH:mm:ss":                 "15:04:05",
+	"hh:mm:ss a":               "03:04:05 PM",
+	"yyyy-MM-dd HH:mm:ss":      "2006-01-02 15:04:05",
+	"yyyy-MM-dd HH:mm:ss z":    "2006-01-02 15:04:05 MST",
+	"yyyy-MM-dd'T'HH:mm:ssXXX": time.RFC3339,
+}
+
+// ObrimDatetime retrieves and formats current date and time.
+func ObrimDatetime(
+	datetimeType string,
+	config map[string]any,
+) map[string]any {
+	log.Println("[datetime] initialization started")
+
+	format, code := obrimDatetimeValidate(datetimeType, config)
+	if code != "" {
+		log.Printf("[datetime] validation failed: %s", code)
+
+		return obrimDatetimeResponse(
+			false,
+			code,
+			"",
+		)
+	}
+
+	var datetimeValue time.Time
+	var err error
+
+	switch datetimeType {
+	case obrimDatetimeTypeLocal:
+		datetimeValue = obrimDatetimeLocal()
+
+	case obrimDatetimeTypeTrusted:
+		datetimeValue, err = obrimDatetimeTrusted()
+		if err != nil {
+			log.Printf(
+				"[datetime] trusted time retrieval failed: %v",
+				err,
+			)
+
+			return obrimDatetimeResponse(
+				false,
+				ObrimDatetimeCodeFailedTrustedTimeRetrieval,
+				"",
+			)
+		}
+	}
+
+	formattedValue := obrimDatetimeFormatApply(
+		datetimeValue,
+		format,
+	)
+
+	log.Println("[datetime] datetime retrieved successfully")
+
+	return obrimDatetimeResponse(
+		true,
+		ObrimDatetimeCodeSuccessRetrieved,
+		formattedValue,
+	)
+}
+
+// obrimDatetimeValidate validates utility inputs.
+func obrimDatetimeValidate(
+	datetimeType string,
+	config map[string]any,
+) (string, string) {
+	switch datetimeType {
+	case obrimDatetimeTypeLocal:
+	case obrimDatetimeTypeTrusted:
+	default:
+		return "", ObrimDatetimeCodeFailedInvalidType
+	}
+
+	formatValue, exists := config["format"]
+	if !exists {
+		return "", ObrimDatetimeCodeFailedInvalidFormat
+	}
+
+	format, ok := formatValue.(string)
+	if !ok || format == "" {
+		return "", ObrimDatetimeCodeFailedInvalidFormat
+	}
+
+	if !obrimDatetimePatternValidate(format) {
+		return "", ObrimDatetimeCodeFailedInvalidFormat
+	}
+
+	return format, ""
+}
+
+// obrimDatetimePatternValidate validates supported patterns.
+func obrimDatetimePatternValidate(pattern string) bool {
+	switch pattern {
+	case "timestampsec":
+		return true
+
+	case "timestampmil":
+		return true
+	}
+
+	_, exists := obrimDatetimePatternMap[pattern]
+
+	return exists
+}
+
+// obrimDatetimePatternResolve resolves pattern mappings.
+func obrimDatetimePatternResolve(
+	pattern string,
+) (string, bool) {
+	layout, exists := obrimDatetimePatternMap[pattern]
+
+	return layout, exists
+}
+
+// obrimDatetimeFormatApply formats datetime values.
+func obrimDatetimeFormatApply(
+	datetimeValue time.Time,
+	pattern string,
+) string {
+	switch pattern {
+	case "timestampsec":
+		return strconv.FormatInt(
+			datetimeValue.Unix(),
+			10,
+		)
+
+	case "timestampmil":
+		return strconv.FormatInt(
+			datetimeValue.UnixMilli(),
+			10,
+		)
+	}
+
+	layout, _ := obrimDatetimePatternResolve(pattern)
+
+	return datetimeValue.Format(layout)
+}
+
+// obrimDatetimeResponse builds utility responses.
+func obrimDatetimeResponse(
+	status bool,
+	code string,
+	value string,
+) map[string]any {
+	if !status {
+		return map[string]any{
+			"status":  false,
+			"code":    code,
+			"payload": nil,
+		}
+	}
+
+	return map[string]any{
+		"status": true,
+		"code":   code,
+		"payload": map[string]any{
+			"value": value,
+		},
+	}
+}
+
+// obrimDatetimeLocal retrieves host system time.
+func obrimDatetimeLocal() time.Time {
+	return time.Now()
+}
+
+// obrimDatetimeTrusted retrieves trusted NTP time.
+func obrimDatetimeTrusted() (time.Time, error) {
+	return obrimDatetimeTrustedSync()
+}
+
+// obrimDatetimeTrustedSync synchronizes trusted time from NTP.
+func obrimDatetimeTrustedSync() (time.Time, error) {
+	connection, err := net.DialTimeout(
+		"udp",
+		obrimDatetimeTrustedNtpPool,
+		5*time.Second,
+	)
+	if err != nil {
+		return time.Time{}, err
+	}
+
+	defer connection.Close()
+
+	var request = make([]byte, 48)
+
+	request[0] = 0x1B
+
+	if _, err = connection.Write(request); err != nil {
+		return time.Time{}, err
+	}
+
+	if err = connection.SetDeadline(
+		time.Now().Add(5 * time.Second),
+	); err != nil {
+		return time.Time{}, err
+	}
+
+	var response = make([]byte, 48)
+
+	if _, err = connection.Read(response); err != nil {
+		return time.Time{}, err
+	}
+
+	var ntpSeconds = binary.BigEndian.Uint32(
+		response[40:44],
+	)
+
+	var ntpFraction = binary.BigEndian.Uint32(
+		response[44:48],
+	)
+
+	const ntpEpochOffset = 2208988800
+
+	var unixSeconds = int64(ntpSeconds) - ntpEpochOffset
+
+	var nanoseconds = (int64(ntpFraction) * 1e9) >> 32
+
+	if unixSeconds < 0 {
+		return time.Time{}, fmt.Errorf(
+			"invalid ntp timestamp",
+		)
+	}
+
+	return time.Unix(
+		unixSeconds,
+		nanoseconds,
+	).UTC(), nil
+}

essential/visible/service/helper/filesystem/filesystem.go

@@ -0,0 +1,748 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Filesystem
+|
+| Purpose:
+|   - Provide reusable, deterministic, and OS-agnostic filesystem
+|     operations for files and directories through a unified execution
+|     interface.
+|
+| Guideline:
+|   - Use ObrimFilesystem() as the single public entry point.
+|   - Execute only one filesystem operation per invocation.
+|   - Validate operation type and configuration before execution.
+|   - Resolve filesystem paths through supported strategies.
+|   - Return structured and deterministic results for all executions.
+|   - Remain independent of runtime, CLI, and third-party frameworks.
+|   - Use Go standard library filesystem capabilities whenever possible.
+|
+| Example:
+|   - ObrimFilesystem("list", map[string]any{
+|         "strategy": "user",
+|         "recursive": true,
+|     })
+|
+|   - ObrimFilesystem("check", map[string]any{
+|         "strategy": "custom",
+|         "base": "/tmp",
+|         "name": "example.txt",
+|     })
+|
+|   - ObrimFilesystem("create", map[string]any{
+|         "entity": "directory",
+|         "strategy": "custom",
+|         "base": "/tmp",
+|         "name": "workspace",
+|     })
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package filesystem
+
+import (
+	"os"
+	"os/user"
+	"path/filepath"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+)
+
+const (
+	obrimFilesystemTypeList       = "list"
+	obrimFilesystemTypeCheck      = "check"
+	obrimFilesystemTypeCreate     = "create"
+	obrimFilesystemTypeDelete     = "delete"
+	obrimFilesystemTypePermission = "permission"
+
+	obrimFilesystemEntityFile      = "file"
+	obrimFilesystemEntityDirectory = "directory"
+
+	obrimFilesystemStrategyUser   = "user"
+	obrimFilesystemStrategyCustom = "custom"
+
+	obrimFilesystemModeRead  = "read"
+	obrimFilesystemModeWrite = "write"
+
+	obrimFilesystemCodeSuccessList       = "SUCCESS_LIST"
+	obrimFilesystemCodeSuccessCheck      = "SUCCESS_CHECK"
+	obrimFilesystemCodeSuccessCreate     = "SUCCESS_CREATE"
+	obrimFilesystemCodeSuccessDelete     = "SUCCESS_DELETE"
+	obrimFilesystemCodeSuccessPermission = "SUCCESS_PERMISSION"
+
+	obrimFilesystemCodeFailedUnsupportedType   = "FAILED_UNSUPPORTED_TYPE"
+	obrimFilesystemCodeFailedMissingConfig     = "FAILED_MISSING_CONFIGURATION"
+	obrimFilesystemCodeFailedInvalidConfig     = "FAILED_INVALID_CONFIGURATION"
+	obrimFilesystemCodeFailedUnsupportedConfig = "FAILED_UNSUPPORTED_CONFIGURATION"
+	obrimFilesystemCodeFailedPathResolution    = "FAILED_PATH_RESOLUTION"
+	obrimFilesystemCodeFailedExecution         = "FAILED_EXECUTION"
+	obrimFilesystemCodeFailedPermission        = "FAILED_PERMISSION"
+	obrimFilesystemCodeFailedEntityNotFound    = "FAILED_ENTITY_NOT_FOUND"
+	obrimFilesystemCodeFailedUnsupportedEntity = "FAILED_UNSUPPORTED_ENTITY"
+	obrimFilesystemCodeFailedInvalidPermission = "FAILED_INVALID_PERMISSION"
+)
+
+var obrimFilesystemSupportedKeys = map[string]map[string]bool{
+	obrimFilesystemTypeList: {
+		"entity":         true,
+		"strategy":       true,
+		"base":           true,
+		"name":           true,
+		"recursive":      true,
+		"include_hidden": true,
+		"sort_by":        true,
+		"sort_order":     true,
+		"filter_pattern": true,
+		"follow_symlink": true,
+		"absolute_path":  true,
+	},
+	obrimFilesystemTypeCheck: {
+		"entity":   true,
+		"strategy": true,
+		"base":     true,
+		"name":     true,
+		"readable": true,
+		"writable": true,
+	},
+	obrimFilesystemTypeCreate: {
+		"entity":   true,
+		"strategy": true,
+		"base":     true,
+		"name":     true,
+		"hidden":   true,
+	},
+	obrimFilesystemTypeDelete: {
+		"entity":    true,
+		"strategy":  true,
+		"base":      true,
+		"name":      true,
+		"recursive": true,
+	},
+	obrimFilesystemTypePermission: {
+		"strategy":   true,
+		"base":       true,
+		"name":       true,
+		"mode":       true,
+		"permission": true,
+	},
+}
+
+// ObrimFilesystem executes filesystem operations.
+func ObrimFilesystem(operationType string, config map[string]any) map[string]any {
+	if code := obrimFilesystemValidate(operationType, config); code != "" {
+		return map[string]any{
+			"status":  false,
+			"code":    code,
+			"payload": nil,
+		}
+	}
+
+	switch operationType {
+	case obrimFilesystemTypeList:
+		return obrimFilesystemList(config)
+
+	case obrimFilesystemTypeCheck:
+		return obrimFilesystemCheck(config)
+
+	case obrimFilesystemTypeCreate:
+		return obrimFilesystemCreate(config)
+
+	case obrimFilesystemTypeDelete:
+		return obrimFilesystemDelete(config)
+
+	case obrimFilesystemTypePermission:
+		return obrimFilesystemPermission(config)
+	}
+
+	return map[string]any{
+		"status":  false,
+		"code":    obrimFilesystemCodeFailedUnsupportedType,
+		"payload": nil,
+	}
+}
+
+// obrimFilesystemValidate validates operation inputs.
+func obrimFilesystemValidate(operationType string, config map[string]any) string {
+	if config == nil {
+		return obrimFilesystemCodeFailedMissingConfig
+	}
+
+	if _, exists := obrimFilesystemSupportedKeys[operationType]; !exists {
+		return obrimFilesystemCodeFailedUnsupportedType
+	}
+
+	for key := range config {
+		if !obrimFilesystemSupportedKeys[operationType][key] {
+			return obrimFilesystemCodeFailedUnsupportedConfig
+		}
+	}
+
+	switch operationType {
+	case obrimFilesystemTypeCreate,
+		obrimFilesystemTypeDelete:
+		entity, _ := config["entity"].(string)
+
+		if entity != obrimFilesystemEntityFile &&
+			entity != obrimFilesystemEntityDirectory {
+			return obrimFilesystemCodeFailedUnsupportedEntity
+		}
+	}
+
+	return ""
+}
+
+// obrimFilesystemResolve resolves and normalizes paths.
+func obrimFilesystemResolve(config map[string]any) (string, error) {
+	var basePath string
+
+	strategy, _ := config["strategy"].(string)
+
+	switch strategy {
+	case "", obrimFilesystemStrategyUser:
+		homePath, err := os.UserHomeDir()
+		if err != nil {
+			currentUser, userErr := user.Current()
+			if userErr != nil {
+				return "", err
+			}
+
+			homePath = currentUser.HomeDir
+		}
+
+		basePath = homePath
+
+	case obrimFilesystemStrategyCustom:
+		basePath, _ = config["base"].(string)
+
+	default:
+		return "", os.ErrInvalid
+	}
+
+	name, _ := config["name"].(string)
+
+	resolvedPath := filepath.Clean(filepath.Join(basePath, name))
+
+	return filepath.Abs(resolvedPath)
+}
+
+// obrimFilesystemPayload builds standardized payloads.
+func obrimFilesystemPayload(payload map[string]any) map[string]any {
+	return payload
+}
+
+// obrimFilesystemEntityType determines entity type.
+func obrimFilesystemEntityType(path string) string {
+	info, err := os.Stat(path)
+	if err != nil {
+		return ""
+	}
+
+	if info.IsDir() {
+		return obrimFilesystemEntityDirectory
+	}
+
+	return obrimFilesystemEntityFile
+}
+
+// obrimFilesystemPermissionValidate validates permission values.
+func obrimFilesystemPermissionValidate(permission string) bool {
+	if permission == "" {
+		return false
+	}
+
+	_, err := strconv.ParseUint(permission, 8, 32)
+
+	return err == nil
+}
+
+// obrimFilesystemList executes listing operations.
+func obrimFilesystemList(config map[string]any) map[string]any {
+	basePath, err := obrimFilesystemResolve(config)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedPathResolution,
+			"payload": nil,
+		}
+	}
+
+	entries, err := obrimFilesystemListTraverse(basePath, config)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedExecution,
+			"payload": nil,
+		}
+	}
+
+	entries = obrimFilesystemListFilter(entries, config)
+	obrimFilesystemListSort(entries, config)
+
+	return map[string]any{
+		"status": true,
+		"code":   obrimFilesystemCodeSuccessList,
+		"payload": obrimFilesystemPayload(map[string]any{
+			"entries":   entries,
+			"total":     len(entries),
+			"recursive": config["recursive"] == true,
+			"base_path": basePath,
+		}),
+	}
+}
+
+// obrimFilesystemListTraverse traverses filesystem entities.
+func obrimFilesystemListTraverse(basePath string, config map[string]any) ([]map[string]any, error) {
+	var entries []map[string]any
+
+	recursive, _ := config["recursive"].(bool)
+	includeHidden, _ := config["include_hidden"].(bool)
+	absolutePath, _ := config["absolute_path"].(bool)
+
+	walkFunction := func(path string, info os.FileInfo, walkErr error) error {
+		if walkErr != nil {
+			return walkErr
+		}
+
+		if path == basePath {
+			return nil
+		}
+
+		if !includeHidden && strings.HasPrefix(info.Name(), ".") {
+			if info.IsDir() {
+				return filepath.SkipDir
+			}
+
+			return nil
+		}
+
+		entryPath := path
+
+		if !absolutePath {
+			entryPath = info.Name()
+		}
+
+		entries = append(entries, map[string]any{
+			"name":     info.Name(),
+			"path":     entryPath,
+			"entity":   obrimFilesystemEntityType(path),
+			"size":     info.Size(),
+			"modified": info.ModTime().UTC().Format(time.RFC3339),
+		})
+
+		if !recursive && info.IsDir() {
+			return filepath.SkipDir
+		}
+
+		return nil
+	}
+
+	err := filepath.Walk(basePath, walkFunction)
+
+	return entries, err
+}
+
+// obrimFilesystemListFilter filters listing results.
+func obrimFilesystemListFilter(entries []map[string]any, config map[string]any) []map[string]any {
+	var filtered []map[string]any
+
+	entity, _ := config["entity"].(string)
+	pattern, _ := config["filter_pattern"].(string)
+
+	for _, entry := range entries {
+		if entity != "" && entry["entity"] != entity {
+			continue
+		}
+
+		if pattern != "" {
+			matched, _ := filepath.Match(pattern, entry["name"].(string))
+
+			if !matched {
+				continue
+			}
+		}
+
+		filtered = append(filtered, entry)
+	}
+
+	return filtered
+}
+
+// obrimFilesystemListSort sorts listing results.
+func obrimFilesystemListSort(entries []map[string]any, config map[string]any) {
+	sortBy, _ := config["sort_by"].(string)
+	sortOrder, _ := config["sort_order"].(string)
+
+	sort.Slice(entries, func(i, j int) bool {
+		var result bool
+
+		switch sortBy {
+		case "size":
+			result = entries[i]["size"].(int64) < entries[j]["size"].(int64)
+
+		case "modified":
+			result = entries[i]["modified"].(string) < entries[j]["modified"].(string)
+
+		default:
+			result = entries[i]["name"].(string) < entries[j]["name"].(string)
+		}
+
+		if sortOrder == "desc" {
+			return !result
+		}
+
+		return result
+	})
+}
+
+// obrimFilesystemCheck executes validation operations.
+func obrimFilesystemCheck(config map[string]any) map[string]any {
+	path, err := obrimFilesystemResolve(config)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedPathResolution,
+			"payload": nil,
+		}
+	}
+
+	_, statErr := os.Stat(path)
+
+	exists := statErr == nil
+	entity := ""
+
+	if exists {
+		entity = obrimFilesystemEntityType(path)
+	}
+
+	readable := false
+	writable := false
+
+	if exists {
+		readable, writable = obrimFilesystemCheckAccess(path)
+	}
+
+	return map[string]any{
+		"status": true,
+		"code":   obrimFilesystemCodeSuccessCheck,
+		"payload": map[string]any{
+			"path":     path,
+			"exists":   exists,
+			"entity":   entity,
+			"readable": readable,
+			"writable": writable,
+		},
+	}
+}
+
+// obrimFilesystemCheckAccess verifies accessibility.
+func obrimFilesystemCheckAccess(path string) (bool, bool) {
+	readable := true
+	writable := true
+
+	readFile, readErr := os.Open(path)
+	if readErr != nil {
+		readable = false
+	} else {
+		_ = readFile.Close()
+	}
+
+	writeFile, writeErr := os.OpenFile(path, os.O_WRONLY, 0)
+	if writeErr != nil {
+		writable = false
+	} else {
+		_ = writeFile.Close()
+	}
+
+	return readable, writable
+}
+
+// obrimFilesystemCreate executes creation operations.
+func obrimFilesystemCreate(config map[string]any) map[string]any {
+	entity := config["entity"].(string)
+
+	switch entity {
+	case obrimFilesystemEntityFile:
+		return obrimFilesystemCreateFile(config)
+
+	case obrimFilesystemEntityDirectory:
+		return obrimFilesystemCreateDirectory(config)
+	}
+
+	return map[string]any{
+		"status":  false,
+		"code":    obrimFilesystemCodeFailedUnsupportedEntity,
+		"payload": nil,
+	}
+}
+
+// obrimFilesystemCreateFile creates a file.
+func obrimFilesystemCreateFile(config map[string]any) map[string]any {
+	path, err := obrimFilesystemResolve(config)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedPathResolution,
+			"payload": nil,
+		}
+	}
+
+	if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedExecution,
+			"payload": nil,
+		}
+	}
+
+	file, err := os.Create(path)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedExecution,
+			"payload": nil,
+		}
+	}
+
+	_ = file.Close()
+
+	return map[string]any{
+		"status": true,
+		"code":   obrimFilesystemCodeSuccessCreate,
+		"payload": map[string]any{
+			"path":    path,
+			"entity":  obrimFilesystemEntityFile,
+			"hidden":  config["hidden"] == true,
+			"created": true,
+		},
+	}
+}
+
+// obrimFilesystemCreateDirectory creates a directory.
+func obrimFilesystemCreateDirectory(config map[string]any) map[string]any {
+	path, err := obrimFilesystemResolve(config)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedPathResolution,
+			"payload": nil,
+		}
+	}
+
+	if err := os.MkdirAll(path, 0755); err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedExecution,
+			"payload": nil,
+		}
+	}
+
+	return map[string]any{
+		"status": true,
+		"code":   obrimFilesystemCodeSuccessCreate,
+		"payload": map[string]any{
+			"path":    path,
+			"entity":  obrimFilesystemEntityDirectory,
+			"hidden":  config["hidden"] == true,
+			"created": true,
+		},
+	}
+}
+
+// obrimFilesystemDelete executes deletion operations.
+func obrimFilesystemDelete(config map[string]any) map[string]any {
+	entity := config["entity"].(string)
+
+	switch entity {
+	case obrimFilesystemEntityFile:
+		return obrimFilesystemDeleteFile(config)
+
+	case obrimFilesystemEntityDirectory:
+		return obrimFilesystemDeleteDirectory(config)
+	}
+
+	return map[string]any{
+		"status":  false,
+		"code":    obrimFilesystemCodeFailedUnsupportedEntity,
+		"payload": nil,
+	}
+}
+
+// obrimFilesystemDeleteFile deletes a file.
+func obrimFilesystemDeleteFile(config map[string]any) map[string]any {
+	path, err := obrimFilesystemResolve(config)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedPathResolution,
+			"payload": nil,
+		}
+	}
+
+	if err := os.Remove(path); err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedExecution,
+			"payload": nil,
+		}
+	}
+
+	return map[string]any{
+		"status": true,
+		"code":   obrimFilesystemCodeSuccessDelete,
+		"payload": map[string]any{
+			"path":    path,
+			"entity":  obrimFilesystemEntityFile,
+			"deleted": true,
+		},
+	}
+}
+
+// obrimFilesystemDeleteDirectory deletes a directory.
+func obrimFilesystemDeleteDirectory(config map[string]any) map[string]any {
+	path, err := obrimFilesystemResolve(config)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedPathResolution,
+			"payload": nil,
+		}
+	}
+
+	recursive, _ := config["recursive"].(bool)
+
+	if recursive {
+		err = os.RemoveAll(path)
+	} else {
+		err = os.Remove(path)
+	}
+
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedExecution,
+			"payload": nil,
+		}
+	}
+
+	return map[string]any{
+		"status": true,
+		"code":   obrimFilesystemCodeSuccessDelete,
+		"payload": map[string]any{
+			"path":    path,
+			"entity":  obrimFilesystemEntityDirectory,
+			"deleted": true,
+		},
+	}
+}
+
+// obrimFilesystemPermission executes permission operations.
+func obrimFilesystemPermission(config map[string]any) map[string]any {
+	mode, _ := config["mode"].(string)
+
+	switch mode {
+	case "", obrimFilesystemModeRead:
+		return obrimFilesystemPermissionRead(config)
+
+	case obrimFilesystemModeWrite:
+		return obrimFilesystemPermissionWrite(config)
+	}
+
+	return map[string]any{
+		"status":  false,
+		"code":    obrimFilesystemCodeFailedInvalidConfig,
+		"payload": nil,
+	}
+}
+
+// obrimFilesystemPermissionRead retrieves permissions.
+func obrimFilesystemPermissionRead(config map[string]any) map[string]any {
+	path, err := obrimFilesystemResolve(config)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedPathResolution,
+			"payload": nil,
+		}
+	}
+
+	info, err := os.Stat(path)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedEntityNotFound,
+			"payload": nil,
+		}
+	}
+
+	return map[string]any{
+		"status": true,
+		"code":   obrimFilesystemCodeSuccessPermission,
+		"payload": map[string]any{
+			"path":       path,
+			"permission": info.Mode().Perm().String(),
+			"mode":       obrimFilesystemModeRead,
+			"updated":    false,
+		},
+	}
+}
+
+// obrimFilesystemPermissionWrite updates permissions.
+func obrimFilesystemPermissionWrite(config map[string]any) map[string]any {
+	path, err := obrimFilesystemResolve(config)
+	if err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedPathResolution,
+			"payload": nil,
+		}
+	}
+
+	permission, _ := config["permission"].(string)
+
+	if !obrimFilesystemPermissionValidate(permission) {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedInvalidPermission,
+			"payload": nil,
+		}
+	}
+
+	value, _ := strconv.ParseUint(permission, 8, 32)
+
+	if err := os.Chmod(path, os.FileMode(value)); err != nil {
+		return map[string]any{
+			"status":  false,
+			"code":    obrimFilesystemCodeFailedPermission,
+			"payload": nil,
+		}
+	}
+
+	return map[string]any{
+		"status": true,
+		"code":   obrimFilesystemCodeSuccessPermission,
+		"payload": map[string]any{
+			"path":       path,
+			"permission": permission,
+			"mode":       obrimFilesystemModeWrite,
+			"updated":    true,
+		},
+	}
+}

essential/visible/service/helper/hash/hash.go

@@ -0,0 +1,594 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Hash
+|
+| Purpose:
+|   - Generate and verify cryptographic hash values using standard
+|     or salted hashing methods for integrity verification,
+|     canonical fingerprinting, resource identification,
+|     comparison workflows, and security-oriented hashing
+|     requirements.
+|
+| Guideline:
+|   - Call ObrimHash() as the single public entry point.
+|   - Provide exactly two primary parameters: type and config.
+|   - Use type "calculate" to generate hash values.
+|   - Use type "compare" to verify hash values.
+|   - Use mode "standard" for deterministic hashing.
+|   - Use mode "salted" for salt-assisted hashing.
+|   - Use only supported algorithms for the selected mode.
+|   - Preserve generated salt values when future verification
+|     is required.
+|   - Always evaluate the returned status and code values before
+|     consuming payload data.
+|
+| Example:
+|   - ObrimHash(
+|       "calculate",
+|       map[string]any{
+|         "mode": "standard",
+|         "algorithm": "sha256",
+|         "value": "example",
+|       },
+|     )
+|
+|   - ObrimHash(
+|       "calculate",
+|       map[string]any{
+|         "mode": "salted",
+|         "algorithm": "salted_sha512",
+|         "value": "example",
+|       },
+|     )
+|
+|   - ObrimHash(
+|       "compare",
+|       map[string]any{
+|         "mode": "standard",
+|         "algorithm": "sha256",
+|         "value": "example",
+|         "hash": "<hash>",
+|       },
+|     )
+|
+|   - ObrimHash(
+|       "compare",
+|       map[string]any{
+|         "mode": "salted",
+|         "algorithm": "salted_sha512",
+|         "value": "example",
+|         "hash": "<hash>",
+|         "salt": "<salt>",
+|       },
+|     )
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package hash
+
+import (
+	"crypto/rand"
+	"crypto/sha256"
+	"crypto/sha512"
+	"encoding/hex"
+)
+
+const (
+	obrimHashTypeCalculate = "calculate"
+	obrimHashTypeCompare   = "compare"
+
+	obrimHashModeStandard = "standard"
+	obrimHashModeSalted   = "salted"
+
+	obrimHashAlgorithmSHA256       = "sha256"
+	obrimHashAlgorithmSHA512       = "sha512"
+	obrimHashAlgorithmSaltedSHA256 = "salted_sha256"
+	obrimHashAlgorithmSaltedSHA512 = "salted_sha512"
+
+	ObrimHashCodeSuccessHashGenerated = "SUCCESS_HASH_GENERATED"
+	ObrimHashCodeSuccessHashCompared  = "SUCCESS_HASH_COMPARED"
+
+	ObrimHashCodeFailedUnsupportedType      = "FAILED_UNSUPPORTED_TYPE"
+	ObrimHashCodeFailedUnsupportedMode      = "FAILED_UNSUPPORTED_MODE"
+	ObrimHashCodeFailedUnsupportedAlgorithm = "FAILED_UNSUPPORTED_ALGORITHM"
+	ObrimHashCodeFailedUnsupportedConfigKey = "FAILED_UNSUPPORTED_CONFIG_KEY"
+	ObrimHashCodeFailedMissingMode          = "FAILED_MISSING_MODE"
+	ObrimHashCodeFailedMissingAlgorithm     = "FAILED_MISSING_ALGORITHM"
+	ObrimHashCodeFailedMissingValue         = "FAILED_MISSING_VALUE"
+	ObrimHashCodeFailedMissingHash          = "FAILED_MISSING_HASH"
+	ObrimHashCodeFailedMissingSalt          = "FAILED_MISSING_SALT"
+	ObrimHashCodeFailedInvalidConfig        = "FAILED_INVALID_CONFIGURATION"
+	ObrimHashCodeFailedSaltNotAllowed       = "FAILED_SALT_NOT_ALLOWED"
+	ObrimHashCodeFailedHashGeneration       = "FAILED_HASH_GENERATION"
+	ObrimHashCodeFailedSaltGeneration       = "FAILED_SALT_GENERATION"
+)
+
+// ObrimHashResponse defines the standard utility response.
+type ObrimHashResponse struct {
+	Status  bool   `json:"status"`
+	Code    string `json:"code"`
+	Payload any    `json:"payload"`
+}
+
+// ObrimHashConfig defines utility configuration.
+type ObrimHashConfig struct {
+	Mode      string
+	Algorithm string
+	Value     string
+	Hash      string
+	Salt      string
+}
+
+// ObrimHashCalculateStandardPayload defines calculate standard payload.
+type ObrimHashCalculateStandardPayload struct {
+	Algorithm string `json:"algorithm"`
+	Hash      string `json:"hash"`
+}
+
+// ObrimHashCalculateSaltedPayload defines calculate salted payload.
+type ObrimHashCalculateSaltedPayload struct {
+	Algorithm string `json:"algorithm"`
+	Hash      string `json:"hash"`
+	Salt      string `json:"salt"`
+}
+
+// ObrimHashCompareStandardPayload defines compare standard payload.
+type ObrimHashCompareStandardPayload struct {
+	Algorithm string `json:"algorithm"`
+	Matched   bool   `json:"matched"`
+	Hash      string `json:"hash"`
+}
+
+// ObrimHashCompareSaltedPayload defines compare salted payload.
+type ObrimHashCompareSaltedPayload struct {
+	Algorithm string `json:"algorithm"`
+	Matched   bool   `json:"matched"`
+	Hash      string `json:"hash"`
+	Salt      string `json:"salt"`
+}
+
+// obrimHashAllowedConfigKeys stores supported configuration keys.
+var obrimHashAllowedConfigKeys = map[string]struct{}{
+	"mode":      {},
+	"algorithm": {},
+	"value":     {},
+	"hash":      {},
+	"salt":      {},
+}
+
+// ObrimHash processes hash generation and verification requests.
+func ObrimHash(
+	hashType string,
+	config map[string]any,
+) map[string]any {
+	if !obrimHashValidateType(hashType) {
+		return obrimHashBuildErrorPayload(
+			ObrimHashCodeFailedUnsupportedType,
+		)
+	}
+
+	hashConfig, errorCode := obrimHashValidateConfig(
+		hashType,
+		config,
+	)
+	if errorCode != "" {
+		return obrimHashBuildErrorPayload(errorCode)
+	}
+
+	if !obrimHashValidateMode(hashConfig.Mode) {
+		return obrimHashBuildErrorPayload(
+			ObrimHashCodeFailedUnsupportedMode,
+		)
+	}
+
+	if !obrimHashValidateAlgorithm(
+		hashConfig.Mode,
+		hashConfig.Algorithm,
+	) {
+		return obrimHashBuildErrorPayload(
+			ObrimHashCodeFailedUnsupportedAlgorithm,
+		)
+	}
+
+	switch hashType {
+	case obrimHashTypeCalculate:
+		return obrimHashCalculate(hashConfig)
+
+	case obrimHashTypeCompare:
+		return obrimHashCompare(hashConfig)
+
+	default:
+		return obrimHashBuildErrorPayload(
+			ObrimHashCodeFailedUnsupportedType,
+		)
+	}
+}
+
+// obrimHashValidateType validates operation type.
+func obrimHashValidateType(hashType string) bool {
+	switch hashType {
+	case obrimHashTypeCalculate:
+		return true
+
+	case obrimHashTypeCompare:
+		return true
+
+	default:
+		return false
+	}
+}
+
+// obrimHashValidateMode validates hashing mode.
+func obrimHashValidateMode(mode string) bool {
+	switch mode {
+	case obrimHashModeStandard:
+		return true
+
+	case obrimHashModeSalted:
+		return true
+
+	default:
+		return false
+	}
+}
+
+// obrimHashValidateAlgorithm validates hashing algorithm selection.
+func obrimHashValidateAlgorithm(
+	mode string,
+	algorithm string,
+) bool {
+	switch mode {
+	case obrimHashModeStandard:
+		switch algorithm {
+		case obrimHashAlgorithmSHA256:
+			return true
+
+		case obrimHashAlgorithmSHA512:
+			return true
+		}
+
+	case obrimHashModeSalted:
+		switch algorithm {
+		case obrimHashAlgorithmSaltedSHA256:
+			return true
+
+		case obrimHashAlgorithmSaltedSHA512:
+			return true
+		}
+	}
+
+	return false
+}
+
+// obrimHashValidateConfig validates configuration keys and values.
+func obrimHashValidateConfig(
+	hashType string,
+	config map[string]any,
+) (ObrimHashConfig, string) {
+	var hashConfig ObrimHashConfig
+
+	if config == nil {
+		return hashConfig, ObrimHashCodeFailedInvalidConfig
+	}
+
+	for key := range config {
+		if _, exists := obrimHashAllowedConfigKeys[key]; !exists {
+			return hashConfig, ObrimHashCodeFailedUnsupportedConfigKey
+		}
+	}
+
+	modeValue, ok := config["mode"].(string)
+	if !ok || modeValue == "" {
+		return hashConfig, ObrimHashCodeFailedMissingMode
+	}
+
+	algorithmValue, ok := config["algorithm"].(string)
+	if !ok || algorithmValue == "" {
+		return hashConfig, ObrimHashCodeFailedMissingAlgorithm
+	}
+
+	valueValue, ok := config["value"].(string)
+	if !ok || valueValue == "" {
+		return hashConfig, ObrimHashCodeFailedMissingValue
+	}
+
+	hashConfig.Mode = modeValue
+	hashConfig.Algorithm = algorithmValue
+	hashConfig.Value = valueValue
+
+	if hashValue, exists := config["hash"]; exists {
+		hashText, ok := hashValue.(string)
+		if !ok {
+			return hashConfig, ObrimHashCodeFailedInvalidConfig
+		}
+
+		hashConfig.Hash = hashText
+	}
+
+	if saltValue, exists := config["salt"]; exists {
+		saltText, ok := saltValue.(string)
+		if !ok {
+			return hashConfig, ObrimHashCodeFailedInvalidConfig
+		}
+
+		hashConfig.Salt = saltText
+	}
+
+	switch hashType {
+	case obrimHashTypeCalculate:
+		if hashConfig.Mode == obrimHashModeStandard &&
+			hashConfig.Salt != "" {
+			return hashConfig, ObrimHashCodeFailedSaltNotAllowed
+		}
+
+	case obrimHashTypeCompare:
+		if hashConfig.Hash == "" {
+			return hashConfig, ObrimHashCodeFailedMissingHash
+		}
+
+		if hashConfig.Mode == obrimHashModeStandard &&
+			hashConfig.Salt != "" {
+			return hashConfig, ObrimHashCodeFailedSaltNotAllowed
+		}
+
+		if hashConfig.Mode == obrimHashModeSalted &&
+			hashConfig.Salt == "" {
+			return hashConfig, ObrimHashCodeFailedMissingSalt
+		}
+	}
+
+	return hashConfig, ""
+}
+
+// obrimHashGenerateHash executes the selected hashing algorithm.
+func obrimHashGenerateHash(
+	algorithm string,
+	value string,
+	salt string,
+) (string, bool) {
+	switch algorithm {
+	case obrimHashAlgorithmSHA256:
+		sum := sha256.Sum256([]byte(value))
+		return hex.EncodeToString(sum[:]), true
+
+	case obrimHashAlgorithmSHA512:
+		sum := sha512.Sum512([]byte(value))
+		return hex.EncodeToString(sum[:]), true
+
+	case obrimHashAlgorithmSaltedSHA256:
+		sum := sha256.Sum256([]byte(value + salt))
+		return hex.EncodeToString(sum[:]), true
+
+	case obrimHashAlgorithmSaltedSHA512:
+		sum := sha512.Sum512([]byte(value + salt))
+		return hex.EncodeToString(sum[:]), true
+
+	default:
+		return "", false
+	}
+}
+
+// obrimHashCalculate processes hash generation requests.
+func obrimHashCalculate(
+	config ObrimHashConfig,
+) map[string]any {
+	switch config.Mode {
+	case obrimHashModeStandard:
+		return obrimHashCalculateStandard(config)
+
+	case obrimHashModeSalted:
+		return obrimHashCalculateSalted(config)
+
+	default:
+		return obrimHashBuildErrorPayload(
+			ObrimHashCodeFailedUnsupportedMode,
+		)
+	}
+}
+
+// obrimHashCalculateStandard generates a deterministic hash.
+func obrimHashCalculateStandard(
+	config ObrimHashConfig,
+) map[string]any {
+	hashValue, success := obrimHashGenerateHash(
+		config.Algorithm,
+		config.Value,
+		"",
+	)
+	if !success {
+		return obrimHashBuildErrorPayload(
+			ObrimHashCodeFailedHashGeneration,
+		)
+	}
+
+	payload := ObrimHashCalculateStandardPayload{
+		Algorithm: config.Algorithm,
+		Hash:      hashValue,
+	}
+
+	return obrimHashBuildSuccessPayload(
+		ObrimHashCodeSuccessHashGenerated,
+		payload,
+	)
+}
+
+// obrimHashCalculateSalted generates a salted hash and salt pair.
+func obrimHashCalculateSalted(
+	config ObrimHashConfig,
+) map[string]any {
+	var activeSalt string
+
+	activeSalt = config.Salt
+
+	if activeSalt == "" {
+		generatedSalt, success := obrimHashGenerateSalt()
+		if !success {
+			return obrimHashBuildErrorPayload(
+				ObrimHashCodeFailedSaltGeneration,
+			)
+		}
+
+		activeSalt = generatedSalt
+	}
+
+	hashValue, success := obrimHashGenerateHash(
+		config.Algorithm,
+		config.Value,
+		activeSalt,
+	)
+	if !success {
+		return obrimHashBuildErrorPayload(
+			ObrimHashCodeFailedHashGeneration,
+		)
+	}
+
+	payload := ObrimHashCalculateSaltedPayload{
+		Algorithm: config.Algorithm,
+		Hash:      hashValue,
+		Salt:      activeSalt,
+	}
+
+	return obrimHashBuildSuccessPayload(
+		ObrimHashCodeSuccessHashGenerated,
+		payload,
+	)
+}
+
+// obrimHashGenerateSalt generates a cryptographically secure salt.
+func obrimHashGenerateSalt() (string, bool) {
+	var saltBytes = make([]byte, 32)
+
+	_, err := rand.Read(saltBytes)
+	if err != nil {
+		return "", false
+	}
+
+	return hex.EncodeToString(saltBytes), true
+}
+
+// obrimHashCompare processes hash verification requests.
+func obrimHashCompare(
+	config ObrimHashConfig,
+) map[string]any {
+	switch config.Mode {
+	case obrimHashModeStandard:
+		return obrimHashCompareStandard(config)
+
+	case obrimHashModeSalted:
+		return obrimHashCompareSalted(config)
+
+	default:
+		return obrimHashBuildErrorPayload(
+			ObrimHashCodeFailedUnsupportedMode,
+		)
+	}
+}
+
+// obrimHashCompareStandard regenerates a standard hash for verification.
+func obrimHashCompareStandard(
+	config ObrimHashConfig,
+) map[string]any {
+	regeneratedHash, success := obrimHashGenerateHash(
+		config.Algorithm,
+		config.Value,
+		"",
+	)
+	if !success {
+		return obrimHashBuildErrorPayload(
+			ObrimHashCodeFailedHashGeneration,
+		)
+	}
+
+	payload := ObrimHashCompareStandardPayload{
+		Algorithm: config.Algorithm,
+		Matched: obrimHashVerify(
+			regeneratedHash,
+			config.Hash,
+		),
+		Hash: config.Hash,
+	}
+
+	return obrimHashBuildSuccessPayload(
+		ObrimHashCodeSuccessHashCompared,
+		payload,
+	)
+}
+
+// obrimHashCompareSalted regenerates a salted hash for verification.
+func obrimHashCompareSalted(
+	config ObrimHashConfig,
+) map[string]any {
+	regeneratedHash, success := obrimHashGenerateHash(
+		config.Algorithm,
+		config.Value,
+		config.Salt,
+	)
+	if !success {
+		return obrimHashBuildErrorPayload(
+			ObrimHashCodeFailedHashGeneration,
+		)
+	}
+
+	payload := ObrimHashCompareSaltedPayload{
+		Algorithm: config.Algorithm,
+		Matched: obrimHashVerify(
+			regeneratedHash,
+			config.Hash,
+		),
+		Hash: config.Hash,
+		Salt: config.Salt,
+	}
+
+	return obrimHashBuildSuccessPayload(
+		ObrimHashCodeSuccessHashCompared,
+		payload,
+	)
+}
+
+// obrimHashVerify compares regenerated and supplied hash values.
+func obrimHashVerify(
+	regeneratedHash string,
+	suppliedHash string,
+) bool {
+	return regeneratedHash == suppliedHash
+}
+
+// obrimHashBuildSuccessPayload constructs success response payloads.
+func obrimHashBuildSuccessPayload(
+	code string,
+	payload any,
+) map[string]any {
+	return map[string]any{
+		"status":  true,
+		"code":    code,
+		"payload": payload,
+	}
+}
+
+// obrimHashBuildErrorPayload constructs error response payloads.
+func obrimHashBuildErrorPayload(
+	code string,
+) map[string]any {
+	return map[string]any{
+		"status":  false,
+		"code":    code,
+		"payload": nil,
+	}
+}

essential/visible/service/helper/key/key.go

@@ -0,0 +1,399 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Key
+|
+| Purpose:
+|   - Generate cryptographic key material through a type-driven
+|     orchestration workflow with strict validation, schema isolation,
+|     and algorithm-specific generation routines.
+|
+| Guideline:
+|   - Call ObrimKey() as the single public entry point.
+|   - Provide an explicit generation type and configuration.
+|   - Use "symmetric" type for AES key generation.
+|   - Use "asymmetric" type for ECC EdDSA key pair generation.
+|   - Provide only supported configuration fields.
+|   - Complete configuration validation before generation.
+|   - Consume generated key material only from successful responses.
+|   - Check response status and code before accessing payload data.
+|
+| Example:
+|   - ObrimKey(
+|         "symmetric",
+|         map[string]any{
+|             "algorithm": "aes",
+|             "key_size": 256,
+|         },
+|     )
+|
+|   - ObrimKey(
+|         "asymmetric",
+|         map[string]any{
+|             "algorithm": "ecc",
+|         },
+|     )
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package key
+
+import (
+	"crypto/aes"
+	"crypto/ed25519"
+	"crypto/rand"
+	"encoding/base64"
+	"strings"
+	"time"
+)
+
+const (
+	obrimKeyTypeSymmetric  = "symmetric"
+	obrimKeyTypeAsymmetric = "asymmetric"
+
+	obrimKeyAlgorithmAES = "aes"
+	obrimKeyAlgorithmECC = "ecc"
+
+	obrimKeyCurveEdDSA = "eddsa"
+
+	ObrimKeyCodeSuccessSymmetricGenerated  = "SUCCESS_SYMMETRIC_KEY_GENERATED"
+	ObrimKeyCodeSuccessAsymmetricGenerated = "SUCCESS_ASYMMETRIC_KEY_GENERATED"
+
+	ObrimKeyCodeFailedMissingType          = "FAILED_MISSING_TYPE"
+	ObrimKeyCodeFailedInvalidType          = "FAILED_INVALID_TYPE"
+	ObrimKeyCodeFailedUnsupportedType      = "FAILED_UNSUPPORTED_TYPE"
+	ObrimKeyCodeFailedMissingConfig        = "FAILED_MISSING_CONFIGURATION"
+	ObrimKeyCodeFailedInvalidConfig        = "FAILED_INVALID_CONFIGURATION"
+	ObrimKeyCodeFailedUnsupportedField     = "FAILED_UNSUPPORTED_CONFIGURATION_FIELD"
+	ObrimKeyCodeFailedMissingAlgorithm     = "FAILED_MISSING_ALGORITHM"
+	ObrimKeyCodeFailedInvalidAlgorithm     = "FAILED_INVALID_ALGORITHM"
+	ObrimKeyCodeFailedUnsupportedAlgorithm = "FAILED_UNSUPPORTED_ALGORITHM"
+	ObrimKeyCodeFailedMissingKeySize       = "FAILED_MISSING_KEY_SIZE"
+	ObrimKeyCodeFailedInvalidKeySize       = "FAILED_INVALID_KEY_SIZE"
+	ObrimKeyCodeFailedUnsupportedKeySize   = "FAILED_UNSUPPORTED_KEY_SIZE"
+	ObrimKeyCodeFailedKeyGeneration        = "FAILED_KEY_GENERATION"
+)
+
+type ObrimKeyResponse struct {
+	Status  bool           `json:"status"`
+	Code    string         `json:"code"`
+	Payload map[string]any `json:"payload"`
+}
+
+// obrimKeyAllowedSymmetricFields stores allowed symmetric configuration fields.
+var obrimKeyAllowedSymmetricFields = map[string]struct{}{
+	"algorithm": {},
+	"key_size":  {},
+}
+
+// obrimKeyAllowedAsymmetricFields stores allowed asymmetric configuration fields.
+var obrimKeyAllowedAsymmetricFields = map[string]struct{}{
+	"algorithm": {},
+}
+
+// ObrimKey dispatches key generation requests and orchestrates validation, generation, and response construction.
+func ObrimKey(keyType string, config map[string]any) map[string]any {
+	normalizedType, errorResponse := obrimKeyValidate(keyType, config)
+	if errorResponse != nil {
+		return errorResponse
+	}
+
+	return obrimKeyDispatch(normalizedType, config)
+}
+
+// obrimKeyValidate validates common request structure and schema integrity.
+func obrimKeyValidate(
+	keyType string,
+	config map[string]any,
+) (string, map[string]any) {
+	if strings.TrimSpace(keyType) == "" {
+		return "", obrimKeyBuildError(ObrimKeyCodeFailedMissingType)
+	}
+
+	if config == nil {
+		return "", obrimKeyBuildError(ObrimKeyCodeFailedMissingConfig)
+	}
+
+	normalizedType := strings.ToLower(strings.TrimSpace(keyType))
+
+	switch normalizedType {
+	case obrimKeyTypeSymmetric:
+		if errorCode := obrimKeyValidateSymmetricConfig(config); errorCode != "" {
+			return "", obrimKeyBuildError(errorCode)
+		}
+
+	case obrimKeyTypeAsymmetric:
+		if errorCode := obrimKeyValidateAsymmetricConfig(config); errorCode != "" {
+			return "", obrimKeyBuildError(errorCode)
+		}
+
+	default:
+		return "", obrimKeyBuildError(ObrimKeyCodeFailedUnsupportedType)
+	}
+
+	return normalizedType, nil
+}
+
+// obrimKeyDispatch routes execution to the appropriate cryptographic workflow.
+func obrimKeyDispatch(
+	keyType string,
+	config map[string]any,
+) map[string]any {
+	switch keyType {
+	case obrimKeyTypeSymmetric:
+		return obrimKeyGenerateSymmetric(config)
+
+	case obrimKeyTypeAsymmetric:
+		return obrimKeyGenerateAsymmetric(config)
+
+	default:
+		return obrimKeyBuildError(ObrimKeyCodeFailedUnsupportedType)
+	}
+}
+
+// obrimKeyValidateSymmetricConfig validates symmetric configuration values.
+func obrimKeyValidateSymmetricConfig(config map[string]any) string {
+	for field := range config {
+		if _, exists := obrimKeyAllowedSymmetricFields[field]; !exists {
+			return ObrimKeyCodeFailedUnsupportedField
+		}
+	}
+
+	algorithmValue, exists := config["algorithm"]
+	if !exists {
+		return ObrimKeyCodeFailedMissingAlgorithm
+	}
+
+	algorithm, ok := algorithmValue.(string)
+	if !ok {
+		return ObrimKeyCodeFailedInvalidAlgorithm
+	}
+
+	algorithm = strings.ToLower(strings.TrimSpace(algorithm))
+
+	if algorithm != obrimKeyAlgorithmAES {
+		return ObrimKeyCodeFailedUnsupportedAlgorithm
+	}
+
+	keySizeValue, exists := config["key_size"]
+	if !exists {
+		return ObrimKeyCodeFailedMissingKeySize
+	}
+
+	keySize, ok := obrimKeyNormalizeInteger(keySizeValue)
+	if !ok {
+		return ObrimKeyCodeFailedInvalidKeySize
+	}
+
+	switch keySize {
+	case 128, 192, 256:
+		return ""
+
+	default:
+		return ObrimKeyCodeFailedUnsupportedKeySize
+	}
+}
+
+// obrimKeyValidateAsymmetricConfig validates asymmetric configuration values.
+func obrimKeyValidateAsymmetricConfig(config map[string]any) string {
+	for field := range config {
+		if _, exists := obrimKeyAllowedAsymmetricFields[field]; !exists {
+			return ObrimKeyCodeFailedUnsupportedField
+		}
+	}
+
+	algorithmValue, exists := config["algorithm"]
+	if !exists {
+		return ObrimKeyCodeFailedMissingAlgorithm
+	}
+
+	algorithm, ok := algorithmValue.(string)
+	if !ok {
+		return ObrimKeyCodeFailedInvalidAlgorithm
+	}
+
+	algorithm = strings.ToLower(strings.TrimSpace(algorithm))
+
+	if algorithm != obrimKeyAlgorithmECC {
+		return ObrimKeyCodeFailedUnsupportedAlgorithm
+	}
+
+	return ""
+}
+
+// obrimKeyGenerateSymmetric generates symmetric key material.
+func obrimKeyGenerateSymmetric(config map[string]any) map[string]any {
+	normalizedConfig := obrimKeyNormalizeSymmetricConfig(config)
+
+	payload, errorCode := obrimKeyGenerateAES(normalizedConfig)
+	if errorCode != "" {
+		return obrimKeyBuildError(errorCode)
+	}
+
+	return obrimKeyBuildPayload(
+		ObrimKeyCodeSuccessSymmetricGenerated,
+		payload,
+	)
+}
+
+// obrimKeyGenerateAES generates AES key material.
+func obrimKeyGenerateAES(
+	config map[string]any,
+) (map[string]any, string) {
+	keySize := config["key_size"].(int)
+
+	// obrimKeyMaterial stores generated AES key bytes.
+	var obrimKeyMaterial = make([]byte, keySize/8)
+
+	if _, err := rand.Read(obrimKeyMaterial); err != nil {
+		return nil, ObrimKeyCodeFailedKeyGeneration
+	}
+
+	if _, err := aes.NewCipher(obrimKeyMaterial); err != nil {
+		return nil, ObrimKeyCodeFailedKeyGeneration
+	}
+
+	return map[string]any{
+		"type":         obrimKeyTypeSymmetric,
+		"algorithm":    obrimKeyAlgorithmAES,
+		"key_size":     keySize,
+		"key_material": base64.StdEncoding.EncodeToString(obrimKeyMaterial),
+		"generated_at": time.Now().UTC().Format(time.RFC3339),
+	}, ""
+}
+
+// obrimKeyNormalizeSymmetricConfig normalizes symmetric configuration values.
+func obrimKeyNormalizeSymmetricConfig(
+	config map[string]any,
+) map[string]any {
+	keySize, _ := obrimKeyNormalizeInteger(config["key_size"])
+
+	return map[string]any{
+		"algorithm": strings.ToLower(
+			strings.TrimSpace(config["algorithm"].(string)),
+		),
+		"key_size": keySize,
+	}
+}
+
+// obrimKeyGenerateAsymmetric generates asymmetric key material.
+func obrimKeyGenerateAsymmetric(config map[string]any) map[string]any {
+	normalizedConfig := obrimKeyNormalizeAsymmetricConfig(config)
+
+	payload, errorCode := obrimKeyGenerateECC(normalizedConfig)
+	if errorCode != "" {
+		return obrimKeyBuildError(errorCode)
+	}
+
+	return obrimKeyBuildPayload(
+		ObrimKeyCodeSuccessAsymmetricGenerated,
+		payload,
+	)
+}
+
+// obrimKeyGenerateECC generates ECC key pair material.
+func obrimKeyGenerateECC(
+	config map[string]any,
+) (map[string]any, string) {
+	_ = config
+
+	publicKey, privateKey, err := ed25519.GenerateKey(rand.Reader)
+	if err != nil {
+		return nil, ObrimKeyCodeFailedKeyGeneration
+	}
+
+	return map[string]any{
+		"type":         obrimKeyTypeAsymmetric,
+		"algorithm":    obrimKeyAlgorithmECC,
+		"curve":        obrimKeyCurveEdDSA,
+		"public_key":   base64.StdEncoding.EncodeToString(publicKey),
+		"private_key":  base64.StdEncoding.EncodeToString(privateKey),
+		"generated_at": time.Now().UTC().Format(time.RFC3339),
+	}, ""
+}
+
+// obrimKeyNormalizeAsymmetricConfig normalizes asymmetric configuration values.
+func obrimKeyNormalizeAsymmetricConfig(
+	config map[string]any,
+) map[string]any {
+	return map[string]any{
+		"algorithm": strings.ToLower(
+			strings.TrimSpace(config["algorithm"].(string)),
+		),
+	}
+}
+
+// obrimKeyBuildPayload constructs standardized success payloads.
+func obrimKeyBuildPayload(
+	code string,
+	payload map[string]any,
+) map[string]any {
+	return map[string]any{
+		"status":  true,
+		"code":    code,
+		"payload": payload,
+	}
+}
+
+// obrimKeyBuildError constructs standardized error responses.
+func obrimKeyBuildError(code string) map[string]any {
+	return map[string]any{
+		"status":  false,
+		"code":    code,
+		"payload": nil,
+	}
+}
+
+// obrimKeyNormalizeInteger normalizes integer values.
+func obrimKeyNormalizeInteger(value any) (int, bool) {
+	switch normalizedValue := value.(type) {
+	case int:
+		return normalizedValue, true
+
+	case int8:
+		return int(normalizedValue), true
+
+	case int16:
+		return int(normalizedValue), true
+
+	case int32:
+		return int(normalizedValue), true
+
+	case int64:
+		return int(normalizedValue), true
+
+	case uint:
+		return int(normalizedValue), true
+
+	case uint8:
+		return int(normalizedValue), true
+
+	case uint16:
+		return int(normalizedValue), true
+
+	case uint32:
+		return int(normalizedValue), true
+
+	case uint64:
+		return int(normalizedValue), true
+
+	default:
+		return 0, false
+	}
+}

essential/visible/service/helper/log/log.go

@@ -0,0 +1,259 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Log
+|
+| Purpose:
+|   - Provide framework-level structured logging capabilities.
+|   - Persist plaintext log entries using a deterministic and platform-aware storage strategy.
+|   - Enable reusable logging functionality for framework and software components.
+|
+| Guideline:
+|   - Use ObrimLog() to write structured log entries.
+|   - Use labels in the format SERVICENAME/UTILITYNAME or SERVICENAME/FEATURENAME.
+|   - Use human-readable messages suitable for operational diagnostics and tracing.
+|   - Allow the utility to manage log file creation and storage path resolution.
+|   - Use append-only logging to preserve historical log records.
+|
+| Example:
+|   - ObrimLog("SYSTEM/LOG", "Log utility initialized.")
+|   - ObrimLog("PROJECT/CREATE", "Project created successfully.")
+|   - ObrimLog("USER/AUTHENTICATION", "User authentication completed.")
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package log
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"time"
+)
+
+const (
+	obrimLogSoftwareName  = "softwarelower"
+	obrimLogFileExtension = ".log"
+)
+
+// ObrimLog writes a structured log entry.
+func ObrimLog(label string, message string) {
+	softwareName := obrimLogSoftwareNameResolve()
+	if softwareName == "" {
+		return
+	}
+
+	entry := obrimLogEntryBuild(
+		obrimLogTimestampGenerate(),
+		label,
+		message,
+	)
+
+	filePath := obrimLogFileResolve(softwareName)
+	if filePath == "" {
+		return
+	}
+
+	if err := obrimLogFileEnsure(filePath); err != nil {
+		return
+	}
+
+	_ = obrimLogWrite(filePath, entry)
+}
+
+// obrimLogSoftwareNameResolve resolves the software name from a local variable.
+func obrimLogSoftwareNameResolve() string {
+	return strings.TrimSpace(obrimLogSoftwareName)
+}
+
+// obrimLogTimestampGenerate generates deterministic timestamps.
+func obrimLogTimestampGenerate() string {
+	return time.Now().UTC().Format(time.RFC3339)
+}
+
+// obrimLogEntryBuild constructs formatted log entries.
+func obrimLogEntryBuild(
+	timestamp string,
+	label string,
+	message string,
+) string {
+	return fmt.Sprintf(
+		"[%s] [%s] %s\n",
+		strings.TrimSpace(timestamp),
+		strings.TrimSpace(label),
+		strings.TrimSpace(message),
+	)
+}
+
+// obrimLogDirectoryResolve resolves platform-specific log directory paths.
+func obrimLogDirectoryResolve(
+	softwareName string,
+) string {
+	switch runtime.GOOS {
+	case "linux":
+		return obrimLogDirectoryResolveLinux(softwareName)
+
+	case "windows":
+		return obrimLogDirectoryResolveWindows(softwareName)
+
+	case "darwin":
+		return obrimLogDirectoryResolveMacOS(softwareName)
+
+	default:
+		return ""
+	}
+}
+
+// obrimLogFileResolve resolves platform-specific log file paths.
+func obrimLogFileResolve(
+	softwareName string,
+) string {
+	directoryPath := obrimLogDirectoryResolve(softwareName)
+	if directoryPath == "" {
+		return ""
+	}
+
+	return filepath.Join(
+		directoryPath,
+		softwareName+obrimLogFileExtension,
+	)
+}
+
+// obrimLogFileEnsure creates and verifies required log directories and files.
+func obrimLogFileEnsure(
+	filePath string,
+) error {
+	directoryPath := filepath.Dir(filePath)
+
+	if err := os.MkdirAll(directoryPath, 0o755); err != nil {
+		return err
+	}
+
+	file, err := os.OpenFile(
+		filePath,
+		os.O_CREATE,
+		0o644,
+	)
+	if err != nil {
+		return err
+	}
+
+	return file.Close()
+}
+
+// obrimLogWrite persists log entries to the filesystem.
+func obrimLogWrite(
+	filePath string,
+	entry string,
+) error {
+	file, err := os.OpenFile(
+		filePath,
+		os.O_APPEND|os.O_CREATE|os.O_WRONLY,
+		0o644,
+	)
+	if err != nil {
+		return err
+	}
+
+	defer file.Close()
+
+	_, err = file.WriteString(entry)
+
+	return err
+}
+
+// obrimLogDirectoryResolveLinux resolves Linux log directory paths.
+func obrimLogDirectoryResolveLinux(
+	softwareName string,
+) string {
+	// Mutable XDG state home environment variable.
+	var xdgStateHome = strings.TrimSpace(
+		os.Getenv("XDG_STATE_HOME"),
+	)
+
+	if xdgStateHome != "" {
+		return filepath.Join(
+			xdgStateHome,
+			"."+softwareName,
+			"logs",
+		)
+	}
+
+	// Mutable user home directory.
+	var homeDirectory string
+
+	userHomeDirectory, err := os.UserHomeDir()
+	if err != nil {
+		return ""
+	}
+
+	homeDirectory = userHomeDirectory
+
+	return filepath.Join(
+		homeDirectory,
+		".local",
+		"state",
+		"."+softwareName,
+		"logs",
+	)
+}
+
+// obrimLogDirectoryResolveWindows resolves Windows log directory paths.
+func obrimLogDirectoryResolveWindows(
+	softwareName string,
+) string {
+	// Mutable LOCALAPPDATA environment variable.
+	var localAppData = strings.TrimSpace(
+		os.Getenv("LOCALAPPDATA"),
+	)
+
+	if localAppData == "" {
+		return ""
+	}
+
+	return filepath.Join(
+		localAppData,
+		softwareName,
+		"Logs",
+	)
+}
+
+// obrimLogDirectoryResolveMacOS resolves macOS log directory paths.
+func obrimLogDirectoryResolveMacOS(
+	softwareName string,
+) string {
+	// Mutable user home directory.
+	var homeDirectory string
+
+	userHomeDirectory, err := os.UserHomeDir()
+	if err != nil {
+		return ""
+	}
+
+	homeDirectory = userHomeDirectory
+
+	return filepath.Join(
+		homeDirectory,
+		"Library",
+		"Logs",
+		"."+softwareName,
+	)
+}

essential/visible/service/helper/marker/marker.go

@@ -0,0 +1,479 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Marker
+|
+| Purpose:
+|   - Provide a unified utility for generating unique markers through
+|     time-based, random, and encoded generation strategies using a
+|     single standardized entry point.
+|
+| Guideline:
+|   - Use ObrimMarker() as the primary entry point for all marker
+|     generation operations.
+|   - Provide a supported marker type and the required configuration
+|     values for the selected generation strategy.
+|   - Consume responses through the standardized status, code, and
+|     payload structure.
+|   - Validate response status before accessing payload data.
+|   - Use time markers for distributed uniqueness requirements.
+|   - Use random markers for collision-resistant identifier generation.
+|   - Use encoded markers for deterministic identifier generation from
+|     source data.
+|
+| Example:
+|   - ObrimMarker("time", map[string]any{
+|       "epoch": 1704067200000,
+|       "instance": "NODE01",
+|     })
+|
+|   - ObrimMarker("random", map[string]any{
+|       "length": 32,
+|       "charset": "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
+|     })
+|
+|   - ObrimMarker("encoded", map[string]any{
+|       "data": "customer-1001",
+|       "length": 24,
+|       "salt": "obrim",
+|     })
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package marker
+
+import (
+	"crypto/rand"
+	"crypto/sha256"
+	"fmt"
+	"strings"
+	"time"
+)
+
+const (
+	obrimMarkerTypeTime    = "time"
+	obrimMarkerTypeRandom  = "random"
+	obrimMarkerTypeEncoded = "encoded"
+
+	ObrimMarkerCodeSuccessTimeGenerated    = "SUCCESS_TIME_GENERATED"
+	ObrimMarkerCodeSuccessRandomGenerated  = "SUCCESS_RANDOM_GENERATED"
+	ObrimMarkerCodeSuccessEncodedGenerated = "SUCCESS_ENCODED_GENERATED"
+
+	ObrimMarkerCodeFailedUnsupportedType = "FAILED_UNSUPPORTED_TYPE"
+	ObrimMarkerCodeFailedMissingConfig   = "FAILED_MISSING_CONFIGURATION"
+	ObrimMarkerCodeFailedInvalidConfig   = "FAILED_INVALID_CONFIGURATION"
+	ObrimMarkerCodeFailedGeneration      = "FAILED_GENERATION"
+	ObrimMarkerCodeFailedValidation      = "FAILED_VALIDATION"
+)
+
+const (
+	obrimMarkerDefaultRandomLength  = 16
+	obrimMarkerDefaultEncodedLength = 16
+	obrimMarkerDefaultCharset       = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+)
+
+// ObrimMarkerResponse defines the standardized utility response.
+type ObrimMarkerResponse struct {
+	Status  bool           `json:"status"`
+	Code    string         `json:"code"`
+	Payload map[string]any `json:"payload"`
+}
+
+// ObrimMarker routes marker generation requests and returns a standardized marker response.
+func ObrimMarker(markerType string, config map[string]any) map[string]any {
+	obrimMarkerLog("initialization")
+
+	if !obrimMarkerValidateType(markerType) {
+		obrimMarkerLog("failure")
+
+		return obrimMarkerBuildResponse(
+			false,
+			ObrimMarkerCodeFailedUnsupportedType,
+			nil,
+		)
+	}
+
+	if config == nil {
+		config = map[string]any{}
+	}
+
+	response := obrimMarkerRoute(markerType, config)
+
+	if status, ok := response["status"].(bool); ok && status {
+		obrimMarkerLog("success")
+	} else {
+		obrimMarkerLog("failure")
+	}
+
+	return response
+}
+
+// obrimMarkerValidateType validates supported marker generation types.
+func obrimMarkerValidateType(markerType string) bool {
+	switch strings.TrimSpace(markerType) {
+	case obrimMarkerTypeTime:
+		return true
+
+	case obrimMarkerTypeRandom:
+		return true
+
+	case obrimMarkerTypeEncoded:
+		return true
+
+	default:
+		return false
+	}
+}
+
+// obrimMarkerRoute routes execution to the selected marker generation workflow.
+func obrimMarkerRoute(
+	markerType string,
+	config map[string]any,
+) map[string]any {
+	switch markerType {
+	case obrimMarkerTypeTime:
+		return obrimMarkerTime(config)
+
+	case obrimMarkerTypeRandom:
+		return obrimMarkerRandom(config)
+
+	case obrimMarkerTypeEncoded:
+		return obrimMarkerEncoded(config)
+
+	default:
+		return obrimMarkerBuildResponse(
+			false,
+			ObrimMarkerCodeFailedUnsupportedType,
+			nil,
+		)
+	}
+}
+
+// obrimMarkerBuildResponse builds standardized success and error responses.
+func obrimMarkerBuildResponse(
+	status bool,
+	code string,
+	payload map[string]any,
+) map[string]any {
+	return map[string]any{
+		"status":  status,
+		"code":    code,
+		"payload": payload,
+	}
+}
+
+// obrimMarkerTime generates time-based unique markers.
+func obrimMarkerTime(config map[string]any) map[string]any {
+	epoch, instance, code := obrimMarkerValidateTime(config)
+	if code != "" {
+		return obrimMarkerBuildResponse(false, code, nil)
+	}
+
+	marker, err := obrimMarkerTimeGenerate(epoch, instance)
+	if err != nil {
+		return obrimMarkerBuildResponse(
+			false,
+			ObrimMarkerCodeFailedGeneration,
+			nil,
+		)
+	}
+
+	return obrimMarkerBuildResponse(
+		true,
+		ObrimMarkerCodeSuccessTimeGenerated,
+		map[string]any{
+			"marker":   marker,
+			"epoch":    epoch,
+			"instance": instance,
+		},
+	)
+}
+
+// obrimMarkerValidateTime validates time marker configuration parameters.
+func obrimMarkerValidateTime(
+	config map[string]any,
+) (int64, string, string) {
+	epochValue, epochExists := config["epoch"]
+	instanceValue, instanceExists := config["instance"]
+
+	if !epochExists {
+		return 0, "", ObrimMarkerCodeFailedMissingConfig
+	}
+
+	if !instanceExists {
+		return 0, "", ObrimMarkerCodeFailedMissingConfig
+	}
+
+	var epoch int64
+
+	switch value := epochValue.(type) {
+	case int64:
+		epoch = value
+
+	case int:
+		epoch = int64(value)
+
+	case float64:
+		epoch = int64(value)
+
+	default:
+		return 0, "", ObrimMarkerCodeFailedInvalidConfig
+	}
+
+	instance, ok := instanceValue.(string)
+	if !ok || strings.TrimSpace(instance) == "" {
+		return 0, "", ObrimMarkerCodeFailedInvalidConfig
+	}
+
+	if epoch < 0 {
+		return 0, "", ObrimMarkerCodeFailedInvalidConfig
+	}
+
+	return epoch, instance, ""
+}
+
+// obrimMarkerTimeGenerate produces the final time-based marker value.
+func obrimMarkerTimeGenerate(
+	epoch int64,
+	instance string,
+) (string, error) {
+	now := time.Now().UnixMilli()
+
+	if epoch > now {
+		return "", obrimMarkerError("invalid epoch")
+	}
+
+	return fmt.Sprintf(
+		"%X%s",
+		now-epoch,
+		strings.ToUpper(instance),
+	), nil
+}
+
+// obrimMarkerRandom generates random collision-resistant markers.
+func obrimMarkerRandom(config map[string]any) map[string]any {
+	length, charset, code := obrimMarkerValidateRandom(config)
+	if code != "" {
+		return obrimMarkerBuildResponse(false, code, nil)
+	}
+
+	marker, err := obrimMarkerRandomGenerate(length, charset)
+	if err != nil {
+		return obrimMarkerBuildResponse(
+			false,
+			ObrimMarkerCodeFailedGeneration,
+			nil,
+		)
+	}
+
+	return obrimMarkerBuildResponse(
+		true,
+		ObrimMarkerCodeSuccessRandomGenerated,
+		map[string]any{
+			"marker":  marker,
+			"length":  length,
+			"charset": charset,
+		},
+	)
+}
+
+// obrimMarkerValidateRandom validates random marker configuration parameters.
+func obrimMarkerValidateRandom(
+	config map[string]any,
+) (int, string, string) {
+	var length = obrimMarkerDefaultRandomLength
+	var charset = obrimMarkerDefaultCharset
+
+	if value, exists := config["length"]; exists {
+		switch typedValue := value.(type) {
+		case int:
+			length = typedValue
+
+		case int64:
+			length = int(typedValue)
+
+		case float64:
+			length = int(typedValue)
+
+		default:
+			return 0, "", ObrimMarkerCodeFailedInvalidConfig
+		}
+	}
+
+	if value, exists := config["charset"]; exists {
+		typedValue, ok := value.(string)
+		if !ok {
+			return 0, "", ObrimMarkerCodeFailedInvalidConfig
+		}
+
+		charset = typedValue
+	}
+
+	if length <= 0 {
+		return 0, "", ObrimMarkerCodeFailedValidation
+	}
+
+	if strings.TrimSpace(charset) == "" {
+		return 0, "", ObrimMarkerCodeFailedValidation
+	}
+
+	return length, charset, ""
+}
+
+// obrimMarkerRandomGenerate produces the final random marker value.
+func obrimMarkerRandomGenerate(
+	length int,
+	charset string,
+) (string, error) {
+	var buffer = make([]byte, length)
+	var randomBuffer = make([]byte, length)
+
+	_, err := rand.Read(randomBuffer)
+	if err != nil {
+		return "", err
+	}
+
+	for index := range buffer {
+		buffer[index] = charset[int(randomBuffer[index])%len(charset)]
+	}
+
+	return string(buffer), nil
+}
+
+// obrimMarkerEncoded generates deterministic encoded markers.
+func obrimMarkerEncoded(config map[string]any) map[string]any {
+	data, length, charset, salt, code := obrimMarkerValidateEncoded(config)
+	if code != "" {
+		return obrimMarkerBuildResponse(false, code, nil)
+	}
+
+	marker, err := obrimMarkerEncodedGenerate(
+		data,
+		length,
+		charset,
+		salt,
+	)
+	if err != nil {
+		return obrimMarkerBuildResponse(
+			false,
+			ObrimMarkerCodeFailedGeneration,
+			nil,
+		)
+	}
+
+	return obrimMarkerBuildResponse(
+		true,
+		ObrimMarkerCodeSuccessEncodedGenerated,
+		map[string]any{
+			"marker": marker,
+			"source": data,
+			"length": length,
+		},
+	)
+}
+
+// obrimMarkerValidateEncoded validates encoded marker configuration parameters.
+func obrimMarkerValidateEncoded(
+	config map[string]any,
+) (string, int, string, string, string) {
+	dataValue, exists := config["data"]
+	if !exists {
+		return "", 0, "", "", ObrimMarkerCodeFailedMissingConfig
+	}
+
+	data, ok := dataValue.(string)
+	if !ok || strings.TrimSpace(data) == "" {
+		return "", 0, "", "", ObrimMarkerCodeFailedInvalidConfig
+	}
+
+	var length = obrimMarkerDefaultEncodedLength
+	var charset = obrimMarkerDefaultCharset
+	var salt string
+
+	if value, exists := config["length"]; exists {
+		switch typedValue := value.(type) {
+		case int:
+			length = typedValue
+
+		case int64:
+			length = int(typedValue)
+
+		case float64:
+			length = int(typedValue)
+
+		default:
+			return "", 0, "", "", ObrimMarkerCodeFailedInvalidConfig
+		}
+	}
+
+	if value, exists := config["charset"]; exists {
+		typedValue, ok := value.(string)
+		if !ok {
+			return "", 0, "", "", ObrimMarkerCodeFailedInvalidConfig
+		}
+
+		charset = typedValue
+	}
+
+	if value, exists := config["salt"]; exists {
+		typedValue, ok := value.(string)
+		if !ok {
+			return "", 0, "", "", ObrimMarkerCodeFailedInvalidConfig
+		}
+
+		salt = typedValue
+	}
+
+	if length <= 0 {
+		return "", 0, "", "", ObrimMarkerCodeFailedValidation
+	}
+
+	if strings.TrimSpace(charset) == "" {
+		return "", 0, "", "", ObrimMarkerCodeFailedValidation
+	}
+
+	return data, length, charset, salt, ""
+}
+
+// obrimMarkerEncodedGenerate produces the final encoded marker value.
+func obrimMarkerEncodedGenerate(
+	data string,
+	length int,
+	charset string,
+	salt string,
+) (string, error) {
+	var hash = sha256.Sum256([]byte(data + salt))
+	var output = make([]byte, length)
+
+	for index := 0; index < length; index++ {
+		output[index] = charset[int(hash[index%len(hash)])%len(charset)]
+	}
+
+	return string(output), nil
+}
+
+// obrimMarkerLog logs utility lifecycle events.
+func obrimMarkerLog(event string) {
+	_ = event
+}
+
+// obrimMarkerError formats internal errors.
+func obrimMarkerError(message string) error {
+	return fmt.Errorf("%s", message)
+}

essential/visible/service/helper/progress/progress.go

@@ -0,0 +1,460 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Progress
+|
+| Purpose:
+|   - Manage, monitor, and report task progress through standardized
+|     lifecycle-aware progress tracking.
+|
+| Guideline:
+|   - Use "countable" type when progress can be measured using current
+|     and target numeric values.
+|   - Use "uncountable" type when progress is activity-based and cannot
+|     be represented by a completion percentage.
+|   - Always provide a valid lifecycle state before executing the utility.
+|   - Provide "current" and "target" values for countable progress
+|     tracking operations.
+|   - Provide a non-empty "placeholder" value for uncountable progress
+|     tracking operations.
+|   - Use returned payload data for CLI rendering, status reporting,
+|     and workflow monitoring.
+|   - Check the returned status and code before consuming payload data.
+|
+| Example:
+|   - ObrimProgress(
+|         "countable",
+|         map[string]any{
+|             "state":   "running",
+|             "current": 45,
+|             "target":  100,
+|         },
+|     )
+|
+|   - ObrimProgress(
+|         "uncountable",
+|         map[string]any{
+|             "state":       "running",
+|             "placeholder": "Processing records...",
+|         },
+|     )
+|
+|   - result := ObrimProgress(
+|         "countable",
+|         map[string]any{
+|             "state":   "completed",
+|             "current": 100,
+|             "target":  100,
+|         },
+|     )
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package progress
+
+import (
+	"fmt"
+	"math"
+	"strings"
+	"sync"
+)
+
+const (
+	obrimProgressTypeCountable   = "countable"
+	obrimProgressTypeUncountable = "uncountable"
+
+	obrimProgressStateStarted   = "started"
+	obrimProgressStateRunning   = "running"
+	obrimProgressStateCompleted = "completed"
+	obrimProgressStateCanceled  = "canceled"
+
+	ObrimProgressCodeSuccessStarted   = "SUCCESS_PROGRESS_STARTED"
+	ObrimProgressCodeSuccessRunning   = "SUCCESS_PROGRESS_RUNNING"
+	ObrimProgressCodeSuccessCompleted = "SUCCESS_PROGRESS_COMPLETED"
+	ObrimProgressCodeSuccessCanceled  = "SUCCESS_PROGRESS_CANCELED"
+
+	ObrimProgressCodeFailedMisconfigured = "FAILED_PROGRESS_MISCONFIGURED"
+
+	obrimProgressVisualLength = 20
+)
+
+// obrimProgressStateMutex prevents state corruption during rapid updates.
+var obrimProgressStateMutex sync.Mutex
+
+// ObrimProgressCountablePayload defines countable progress payload data.
+type ObrimProgressCountablePayload struct {
+	State      string `json:"state"`
+	Current    int    `json:"current"`
+	Target     int    `json:"target"`
+	Percentage int    `json:"percentage"`
+	Message    string `json:"message"`
+	Visual     string `json:"visual"`
+}
+
+// ObrimProgressUncountablePayload defines uncountable progress payload data.
+type ObrimProgressUncountablePayload struct {
+	State       string `json:"state"`
+	Placeholder string `json:"placeholder"`
+	Message     string `json:"message"`
+	Visual      string `json:"visual"`
+}
+
+// ObrimProgress manages lifecycle-aware countable and uncountable progress tracking operations.
+func ObrimProgress(progressType string, config map[string]any) map[string]any {
+	obrimProgressStateMutex.Lock()
+	defer obrimProgressStateMutex.Unlock()
+
+	if !obrimProgressValidate(progressType, config) {
+		return obrimProgressBuildResponse(
+			false,
+			ObrimProgressCodeFailedMisconfigured,
+			nil,
+		)
+	}
+
+	code := obrimProgressHandleState(config["state"].(string))
+
+	switch progressType {
+	case obrimProgressTypeCountable:
+		return obrimProgressCountable(config, code)
+
+	case obrimProgressTypeUncountable:
+		return obrimProgressUncountable(config, code)
+	}
+
+	return obrimProgressBuildResponse(
+		false,
+		ObrimProgressCodeFailedMisconfigured,
+		nil,
+	)
+}
+
+// obrimProgressValidate validates input parameters and configuration consistency.
+func obrimProgressValidate(
+	progressType string,
+	config map[string]any,
+) bool {
+	if config == nil {
+		return false
+	}
+
+	stateValue, exists := config["state"]
+	if !exists {
+		return false
+	}
+
+	state, ok := stateValue.(string)
+	if !ok {
+		return false
+	}
+
+	switch state {
+	case obrimProgressStateStarted,
+		obrimProgressStateRunning,
+		obrimProgressStateCompleted,
+		obrimProgressStateCanceled:
+
+	default:
+		return false
+	}
+
+	switch progressType {
+	case obrimProgressTypeCountable:
+		currentValue, currentExists := config["current"]
+		targetValue, targetExists := config["target"]
+
+		if !currentExists || !targetExists {
+			return false
+		}
+
+		current, currentOk := currentValue.(int)
+		target, targetOk := targetValue.(int)
+
+		if !currentOk || !targetOk {
+			return false
+		}
+
+		if target <= 0 {
+			return false
+		}
+
+		_ = current
+
+		return true
+
+	case obrimProgressTypeUncountable:
+		placeholderValue, exists := config["placeholder"]
+		if !exists {
+			return false
+		}
+
+		placeholder, ok := placeholderValue.(string)
+		if !ok {
+			return false
+		}
+
+		return strings.TrimSpace(placeholder) != ""
+	}
+
+	return false
+}
+
+// obrimProgressHandleState processes lifecycle state transitions.
+func obrimProgressHandleState(state string) string {
+	switch state {
+	case obrimProgressStateStarted:
+		return ObrimProgressCodeSuccessStarted
+
+	case obrimProgressStateRunning:
+		return ObrimProgressCodeSuccessRunning
+
+	case obrimProgressStateCompleted:
+		return ObrimProgressCodeSuccessCompleted
+
+	case obrimProgressStateCanceled:
+		return ObrimProgressCodeSuccessCanceled
+	}
+
+	return ObrimProgressCodeFailedMisconfigured
+}
+
+// obrimProgressGenerateMessage generates human-readable progress messages.
+func obrimProgressGenerateMessage(
+	progressType string,
+	state string,
+	payload map[string]any,
+) string {
+	switch progressType {
+	case obrimProgressTypeCountable:
+		percentage := payload["percentage"].(int)
+
+		switch state {
+		case obrimProgressStateStarted:
+			return fmt.Sprintf(
+				"Progress started (%d%% complete).",
+				percentage,
+			)
+
+		case obrimProgressStateRunning:
+			return fmt.Sprintf(
+				"Progress running (%d%% complete).",
+				percentage,
+			)
+
+		case obrimProgressStateCompleted:
+			return fmt.Sprintf(
+				"Progress completed (%d%% complete).",
+				percentage,
+			)
+
+		case obrimProgressStateCanceled:
+			return fmt.Sprintf(
+				"Progress canceled (%d%% complete).",
+				percentage,
+			)
+		}
+
+	case obrimProgressTypeUncountable:
+		placeholder := payload["placeholder"].(string)
+
+		switch state {
+		case obrimProgressStateStarted:
+			return fmt.Sprintf(
+				"Activity started: %s",
+				placeholder,
+			)
+
+		case obrimProgressStateRunning:
+			return fmt.Sprintf(
+				"Activity running: %s",
+				placeholder,
+			)
+
+		case obrimProgressStateCompleted:
+			return fmt.Sprintf(
+				"Activity completed: %s",
+				placeholder,
+			)
+
+		case obrimProgressStateCanceled:
+			return fmt.Sprintf(
+				"Activity canceled: %s",
+				placeholder,
+			)
+		}
+	}
+
+	return ""
+}
+
+// obrimProgressGenerateVisual generates CLI-friendly visual progress representations.
+func obrimProgressGenerateVisual(
+	progressType string,
+	payload map[string]any,
+) string {
+	switch progressType {
+	case obrimProgressTypeCountable:
+		percentage := payload["percentage"].(int)
+
+		filled := int(math.Round(
+			(float64(percentage) / 100.0) * float64(obrimProgressVisualLength),
+		))
+
+		if filled > obrimProgressVisualLength {
+			filled = obrimProgressVisualLength
+		}
+
+		if filled < 0 {
+			filled = 0
+		}
+
+		return fmt.Sprintf(
+			"[%s%s] %d%%",
+			strings.Repeat("=", filled),
+			strings.Repeat(" ", obrimProgressVisualLength-filled),
+			percentage,
+		)
+
+	case obrimProgressTypeUncountable:
+		return "[....................]"
+	}
+
+	return ""
+}
+
+// obrimProgressBuildResponse constructs standardized utility response payloads.
+func obrimProgressBuildResponse(
+	status bool,
+	code string,
+	payload any,
+) map[string]any {
+	return map[string]any{
+		"status":  status,
+		"code":    code,
+		"payload": payload,
+	}
+}
+
+// obrimProgressCountable processes countable progress tracking workflows.
+func obrimProgressCountable(
+	config map[string]any,
+	code string,
+) map[string]any {
+	current := config["current"].(int)
+	target := config["target"].(int)
+	state := config["state"].(string)
+
+	percentage := obrimProgressCalculatePercentage(
+		current,
+		target,
+	)
+
+	payloadData := map[string]any{
+		"percentage": percentage,
+	}
+
+	payload := ObrimProgressCountablePayload{
+		State:      state,
+		Current:    current,
+		Target:     target,
+		Percentage: percentage,
+		Message: obrimProgressGenerateMessage(
+			obrimProgressTypeCountable,
+			state,
+			payloadData,
+		),
+		Visual: obrimProgressGenerateVisual(
+			obrimProgressTypeCountable,
+			payloadData,
+		),
+	}
+
+	return obrimProgressBuildResponse(
+		true,
+		code,
+		payload,
+	)
+}
+
+// obrimProgressCalculatePercentage calculates and normalizes completion percentages.
+func obrimProgressCalculatePercentage(
+	current int,
+	target int,
+) int {
+	if current < 0 {
+		return 0
+	}
+
+	percentage := int(math.Round(
+		(float64(current) / float64(target)) * 100,
+	))
+
+	if percentage > 100 {
+		return 100
+	}
+
+	if percentage < 0 {
+		return 0
+	}
+
+	return percentage
+}
+
+// obrimProgressUncountable processes uncountable progress tracking workflows.
+func obrimProgressUncountable(
+	config map[string]any,
+	code string,
+) map[string]any {
+	state := config["state"].(string)
+
+	placeholder := obrimProgressResolvePlaceholder(
+		config["placeholder"].(string),
+	)
+
+	payloadData := map[string]any{
+		"placeholder": placeholder,
+	}
+
+	payload := ObrimProgressUncountablePayload{
+		State:       state,
+		Placeholder: placeholder,
+		Message: obrimProgressGenerateMessage(
+			obrimProgressTypeUncountable,
+			state,
+			payloadData,
+		),
+		Visual: obrimProgressGenerateVisual(
+			obrimProgressTypeUncountable,
+			payloadData,
+		),
+	}
+
+	return obrimProgressBuildResponse(
+		true,
+		code,
+		payload,
+	)
+}
+
+// obrimProgressResolvePlaceholder validates and prepares placeholder activity messages.
+func obrimProgressResolvePlaceholder(
+	placeholder string,
+) string {
+	return strings.TrimSpace(placeholder)
+}

essential/visible/service/helper/retriever/retriever.go

@@ -0,0 +1,491 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Retriever
+|
+| Purpose:
+|   - Retrieve data from supported resource providers through a unified
+|     retrieval interface while abstracting provider-specific
+|     implementation details from consumers.
+|
+| Guideline:
+|
+|   ObrimRetriever()
+|   - Use for unified resource retrieval operations.
+|   - Select a supported retrieval type before execution.
+|   - Provide configuration according to the selected retrieval type.
+|   - Use resource retrieval for complete resource payloads.
+|   - Use path retrieval for individual nested values.
+|   - Use field retrieval for multiple selected values.
+|   - Do not provide both path and fields in the same request.
+|
+|   ObrimRetrieverJsonRegister()
+|   - Register JSON providers before retrieval operations.
+|   - Use unique resource identifiers for provider registration.
+|   - Register one provider per resource identifier.
+|
+|   ObrimRetrieverDbRegister()
+|   - Register database providers using unique resource identifiers.
+|   - Reserve registration for future database retrieval support.
+|   - Maintain resource-to-provider mappings through registration.
+|
+| Example:
+|
+|   ObrimRetriever()
+|   - ObrimRetriever("json", map[string]any{
+|         "resource": "metadata",
+|     })
+|
+|   - ObrimRetriever("json", map[string]any{
+|         "resource": "metadata",
+|         "path": "software.name",
+|     })
+|
+|   - ObrimRetriever("json", map[string]any{
+|         "resource": "metadata",
+|         "fields": []string{
+|             "software.name",
+|             "software.version",
+|         },
+|     })
+|
+|   ObrimRetrieverJsonRegister()
+|   - ObrimRetrieverJsonRegister(
+|         "metadata",
+|         metadataProvider,
+|     )
+|
+|   ObrimRetrieverDbRegister()
+|   - ObrimRetrieverDbRegister(
+|         "database",
+|         databaseProvider,
+|     )
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package retriever
+
+import (
+	"strings"
+)
+
+const (
+	obrimRetrieverTypeJson = "json"
+	obrimRetrieverTypeDb   = "db"
+
+	obrimRetrieverCodeSuccessResource = "SUCCESS_RESOURCE_RETRIEVED"
+	obrimRetrieverCodeSuccessPath     = "SUCCESS_PATH_RETRIEVED"
+	obrimRetrieverCodeSuccessFields   = "SUCCESS_FIELDS_RETRIEVED"
+
+	obrimRetrieverCodeFailedUnsupportedType  = "FAILED_UNSUPPORTED_TYPE"
+	obrimRetrieverCodeFailedMissingConfig    = "FAILED_MISSING_CONFIGURATION"
+	obrimRetrieverCodeFailedInvalidConfig    = "FAILED_INVALID_CONFIGURATION"
+	obrimRetrieverCodeFailedResourceNotFound = "FAILED_RESOURCE_NOT_FOUND"
+	obrimRetrieverCodeFailedPathNotFound     = "FAILED_PATH_NOT_FOUND"
+	obrimRetrieverCodeFailedFieldNotFound    = "FAILED_FIELD_NOT_FOUND"
+	obrimRetrieverCodeFailedNotImplemented   = "FAILED_NOT_IMPLEMENTED"
+)
+
+// ObrimRetrieverJsonProviderRegistry stores registered JSON providers.
+var ObrimRetrieverJsonProviderRegistry = map[string]any{}
+
+// ObrimRetrieverDbProviderRegistry stores registered database providers.
+var ObrimRetrieverDbProviderRegistry = map[string]any{}
+
+// ObrimRetrieverResponse defines the standardized utility response structure.
+type ObrimRetrieverResponse struct {
+	Status  bool           `json:"status"`
+	Code    string         `json:"code"`
+	Payload map[string]any `json:"payload"`
+}
+
+// ObrimRetriever retrieves data using a unified retrieval interface.
+func ObrimRetriever(retrievalType string, config map[string]any) map[string]any {
+	if !obrimRetrieverValidateType(retrievalType) {
+		return obrimRetrieverBuildResponse(
+			false,
+			obrimRetrieverCodeFailedUnsupportedType,
+			nil,
+		)
+	}
+
+	validationCode := obrimRetrieverValidateConfig(retrievalType, config)
+
+	if validationCode != "" {
+		return obrimRetrieverBuildResponse(
+			false,
+			validationCode,
+			nil,
+		)
+	}
+
+	switch retrievalType {
+	case obrimRetrieverTypeJson:
+		return obrimRetrieverJson(config)
+
+	case obrimRetrieverTypeDb:
+		return obrimRetrieverDb(config)
+
+	default:
+		return obrimRetrieverBuildResponse(
+			false,
+			obrimRetrieverCodeFailedUnsupportedType,
+			nil,
+		)
+	}
+}
+
+// ObrimRetrieverJsonRegister registers a JSON provider.
+func ObrimRetrieverJsonRegister(resource string, provider any) {
+	if strings.TrimSpace(resource) == "" {
+		return
+	}
+
+	ObrimRetrieverJsonProviderRegistry[resource] = provider
+}
+
+// ObrimRetrieverDbRegister registers a database provider.
+func ObrimRetrieverDbRegister(resource string, provider any) {
+	if strings.TrimSpace(resource) == "" {
+		return
+	}
+
+	ObrimRetrieverDbProviderRegistry[resource] = provider
+}
+
+// obrimRetrieverValidateType validates a retrieval type.
+func obrimRetrieverValidateType(retrievalType string) bool {
+	switch retrievalType {
+	case obrimRetrieverTypeJson:
+		return true
+
+	case obrimRetrieverTypeDb:
+		return true
+
+	default:
+		return false
+	}
+}
+
+// obrimRetrieverValidateConfig validates retrieval configuration.
+func obrimRetrieverValidateConfig(
+	retrievalType string,
+	config map[string]any,
+) string {
+	if config == nil {
+		return obrimRetrieverCodeFailedMissingConfig
+	}
+
+	switch retrievalType {
+	case obrimRetrieverTypeJson:
+		return obrimRetrieverJsonValidate(config)
+
+	case obrimRetrieverTypeDb:
+		return obrimRetrieverDbValidate(config)
+
+	default:
+		return obrimRetrieverCodeFailedUnsupportedType
+	}
+}
+
+// obrimRetrieverResolveProvider resolves a provider by resource identifier.
+func obrimRetrieverResolveProvider(
+	retrievalType string,
+	resource string,
+) (any, bool) {
+	switch retrievalType {
+	case obrimRetrieverTypeJson:
+		provider, exists := ObrimRetrieverJsonProviderRegistry[resource]
+		return provider, exists
+
+	case obrimRetrieverTypeDb:
+		provider, exists := ObrimRetrieverDbProviderRegistry[resource]
+		return provider, exists
+
+	default:
+		return nil, false
+	}
+}
+
+// obrimRetrieverBuildResponse builds a standardized utility response.
+func obrimRetrieverBuildResponse(
+	status bool,
+	code string,
+	payload map[string]any,
+) map[string]any {
+	return map[string]any{
+		"status":  status,
+		"code":    code,
+		"payload": payload,
+	}
+}
+
+// obrimRetrieverJson processes JSON retrieval requests.
+func obrimRetrieverJson(config map[string]any) map[string]any {
+	resource := config["resource"].(string)
+
+	provider, exists := obrimRetrieverResolveProvider(
+		obrimRetrieverTypeJson,
+		resource,
+	)
+
+	if !exists {
+		return obrimRetrieverBuildResponse(
+			false,
+			obrimRetrieverCodeFailedResourceNotFound,
+			nil,
+		)
+	}
+
+	if fields, exists := config["fields"]; exists {
+		return obrimRetrieverJsonFields(provider, fields)
+	}
+
+	if path, exists := config["path"]; exists {
+		return obrimRetrieverJsonPath(provider, path.(string))
+	}
+
+	return obrimRetrieverJsonResource(provider)
+}
+
+// obrimRetrieverJsonResource retrieves an entire resource.
+func obrimRetrieverJsonResource(provider any) map[string]any {
+	data, success := obrimRetrieverJsonRetrieve(provider)
+
+	if !success {
+		return obrimRetrieverBuildResponse(
+			false,
+			obrimRetrieverCodeFailedResourceNotFound,
+			nil,
+		)
+	}
+
+	return obrimRetrieverBuildResponse(
+		true,
+		obrimRetrieverCodeSuccessResource,
+		map[string]any{
+			"data": data,
+		},
+	)
+}
+
+// obrimRetrieverJsonPath retrieves a value using a dot-notation path.
+func obrimRetrieverJsonPath(provider any, path string) map[string]any {
+	data, success := obrimRetrieverJsonRetrieve(provider)
+
+	if !success {
+		return obrimRetrieverBuildResponse(
+			false,
+			obrimRetrieverCodeFailedResourceNotFound,
+			nil,
+		)
+	}
+
+	value, found := obrimRetrieverJsonResolvePath(data, path)
+
+	if !found {
+		return obrimRetrieverBuildResponse(
+			false,
+			obrimRetrieverCodeFailedPathNotFound,
+			nil,
+		)
+	}
+
+	return obrimRetrieverBuildResponse(
+		true,
+		obrimRetrieverCodeSuccessPath,
+		map[string]any{
+			"data": value,
+		},
+	)
+}
+
+// obrimRetrieverJsonFields retrieves multiple values using field selection.
+func obrimRetrieverJsonFields(provider any, fieldsValue any) map[string]any {
+	data, success := obrimRetrieverJsonRetrieve(provider)
+
+	if !success {
+		return obrimRetrieverBuildResponse(
+			false,
+			obrimRetrieverCodeFailedResourceNotFound,
+			nil,
+		)
+	}
+
+	fields, valid := obrimRetrieverJsonNormalizeFields(fieldsValue)
+
+	if !valid {
+		return obrimRetrieverBuildResponse(
+			false,
+			obrimRetrieverCodeFailedInvalidConfig,
+			nil,
+		)
+	}
+
+	result := map[string]any{}
+
+	for _, field := range fields {
+		value, found := obrimRetrieverJsonResolvePath(data, field)
+
+		if !found {
+			return obrimRetrieverBuildResponse(
+				false,
+				obrimRetrieverCodeFailedFieldNotFound,
+				nil,
+			)
+		}
+
+		result[field] = value
+	}
+
+	return obrimRetrieverBuildResponse(
+		true,
+		obrimRetrieverCodeSuccessFields,
+		map[string]any{
+			"data": result,
+		},
+	)
+}
+
+// obrimRetrieverJsonValidate validates JSON retrieval configuration.
+func obrimRetrieverJsonValidate(config map[string]any) string {
+	resourceValue, exists := config["resource"]
+
+	if !exists {
+		return obrimRetrieverCodeFailedMissingConfig
+	}
+
+	resource, valid := resourceValue.(string)
+
+	if !valid {
+		return obrimRetrieverCodeFailedInvalidConfig
+	}
+
+	if strings.TrimSpace(resource) == "" {
+		return obrimRetrieverCodeFailedInvalidConfig
+	}
+
+	_, pathExists := config["path"]
+	_, fieldsExists := config["fields"]
+
+	if pathExists && fieldsExists {
+		return obrimRetrieverCodeFailedInvalidConfig
+	}
+
+	if pathExists {
+		path, valid := config["path"].(string)
+
+		if !valid || strings.TrimSpace(path) == "" {
+			return obrimRetrieverCodeFailedInvalidConfig
+		}
+	}
+
+	if fieldsExists {
+		fields, valid := obrimRetrieverJsonNormalizeFields(config["fields"])
+
+		if !valid || len(fields) == 0 {
+			return obrimRetrieverCodeFailedInvalidConfig
+		}
+	}
+
+	return ""
+}
+
+// obrimRetrieverDb processes database retrieval requests.
+func obrimRetrieverDb(config map[string]any) map[string]any {
+	return obrimRetrieverBuildResponse(
+		false,
+		obrimRetrieverCodeFailedNotImplemented,
+		nil,
+	)
+}
+
+// obrimRetrieverDbValidate validates database retrieval configuration.
+func obrimRetrieverDbValidate(config map[string]any) string {
+	return ""
+}
+
+// obrimRetrieverJsonRetrieve retrieves resource data from a provider.
+func obrimRetrieverJsonRetrieve(provider any) (any, bool) {
+	switch retrievalProvider := provider.(type) {
+	case func() any:
+		return retrievalProvider(), true
+
+	case func() map[string]any:
+		return retrievalProvider(), true
+
+	case func() (any, bool):
+		return retrievalProvider()
+
+	case map[string]any:
+		return retrievalProvider, true
+
+	default:
+		return nil, false
+	}
+}
+
+// obrimRetrieverJsonResolvePath resolves a dot-notation path.
+func obrimRetrieverJsonResolvePath(data any, path string) (any, bool) {
+	current := data
+
+	for _, segment := range strings.Split(path, ".") {
+		object, valid := current.(map[string]any)
+
+		if !valid {
+			return nil, false
+		}
+
+		value, exists := object[segment]
+
+		if !exists {
+			return nil, false
+		}
+
+		current = value
+	}
+
+	return current, true
+}
+
+// obrimRetrieverJsonNormalizeFields normalizes field selections.
+func obrimRetrieverJsonNormalizeFields(fieldsValue any) ([]string, bool) {
+	switch fields := fieldsValue.(type) {
+	case []string:
+		return fields, true
+
+	case []any:
+		result := make([]string, 0, len(fields))
+
+		for _, field := range fields {
+			fieldString, valid := field.(string)
+
+			if !valid {
+				return nil, false
+			}
+
+			result = append(result, fieldString)
+		}
+
+		return result, true
+
+	default:
+		return nil, false
+	}
+}

essential/visible/service/helper/status/status.go

@@ -0,0 +1,124 @@
+/*
+|--------------------------------------------------------------------------
+| Metadata
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Status
+|
+| Purpose:
+|   - Provide a framework-level CLI status utility that standardizes
+|     terminal message presentation using semantic labels and visual
+|     indicators to ensure consistent output across all softwares.
+|
+| Guideline:
+|   - Call ObrimStatus() whenever a standardized terminal status message
+|     must be emitted.
+|   - Use only supported semantic labels: INFO, WARNING, SUCCESS, ERROR.
+|   - Invalid, unsupported, or empty labels are automatically normalized
+|     to INFO.
+|   - Status operates through terminal output side-effects and does not
+|     return any value.
+|
+| Example:
+|   - ObrimStatus("INFO", "Application started.")
+|   - ObrimStatus("SUCCESS", "Configuration loaded.")
+|   - ObrimStatus("WARNING", "Configuration file not found.")
+|   - ObrimStatus("ERROR", "Unable to establish connection.")
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package status
+
+import (
+	"fmt"
+	"strings"
+)
+
+const (
+	obrimStatusLabelInfo    = "INFO"
+	obrimStatusLabelWarning = "WARNING"
+	obrimStatusLabelSuccess = "SUCCESS"
+	obrimStatusLabelError   = "ERROR"
+)
+
+// obrimStatusIndicatorRegistry stores status indicators.
+var obrimStatusIndicatorRegistry = map[string]string{
+	obrimStatusLabelInfo:    "ℹ",
+	obrimStatusLabelWarning: "⚠",
+	obrimStatusLabelSuccess: "✓",
+	obrimStatusLabelError:   "✖",
+}
+
+// ObrimStatus emits a standardized CLI status message.
+func ObrimStatus(label string, message string) {
+	normalizedLabel := obrimStatusNormalizeLabel(label)
+	formattedLabel := obrimStatusFormatLabel(normalizedLabel)
+	formattedIndicator := obrimStatusFormatIndicator(normalizedLabel)
+	formattedMessage := obrimStatusBuildMessage(
+		formattedLabel,
+		formattedIndicator,
+		message,
+	)
+
+	fmt.Println(formattedMessage)
+}
+
+// obrimStatusNormalizeLabel normalizes and validates labels.
+func obrimStatusNormalizeLabel(label string) string {
+	normalizedLabel := strings.ToUpper(strings.TrimSpace(label))
+
+	switch normalizedLabel {
+	case obrimStatusLabelInfo:
+		return obrimStatusLabelInfo
+
+	case obrimStatusLabelWarning:
+		return obrimStatusLabelWarning
+
+	case obrimStatusLabelSuccess:
+		return obrimStatusLabelSuccess
+
+	case obrimStatusLabelError:
+		return obrimStatusLabelError
+
+	default:
+		return obrimStatusLabelInfo
+	}
+}
+
+// obrimStatusFormatLabel formats semantic labels.
+func obrimStatusFormatLabel(label string) string {
+	return fmt.Sprintf("[%s]", label)
+}
+
+// obrimStatusFormatIndicator generates visual status indicators.
+func obrimStatusFormatIndicator(label string) string {
+	indicator, exists := obrimStatusIndicatorRegistry[label]
+	if !exists {
+		return obrimStatusIndicatorRegistry[obrimStatusLabelInfo]
+	}
+
+	return indicator
+}
+
+// obrimStatusBuildMessage constructs the final terminal message.
+func obrimStatusBuildMessage(
+	label string,
+	indicator string,
+	message string,
+) string {
+	return fmt.Sprintf("%s %s %s", indicator, label, message)
+}

go.mod

@@ -1,3 +1,5 @@
 module go/module
 
 go 1.26.4
+
+require github.com/sqids/sqids-go v0.4.1

go.sum

@@ -0,0 +1,2 @@
+github.com/sqids/sqids-go v0.4.1 h1:eQKYzmAZbLlRwHeHYPF35QhgxwZHLnlmVj9AkIj/rrw=
+github.com/sqids/sqids-go v0.4.1/go.mod h1:EMwHuPQgSNFS0A49jESTfIQS+066XQTVhukrzEPScl8=