Module error 

Error types for SaveContext CLI.

Provides structured error handling with:

• Machine-readable error codes (ErrorCode)
• Category-based exit codes (2=db, 3=not_found, 4=validation, etc.)
• Retryability flags for agent self-correction
• Context-aware recovery hints
• Structured JSON output for piped / non-TTY consumers

Enums

Error

Errors that can occur in SaveContext CLI operations.

ErrorCode

Machine-readable error codes grouped by category.

Type Aliases

Result

Result type alias for SaveContext operations.