Module errors 

Centralized error types for the pages export system.

This module provides user-friendly error types with:

• Clear error messages without technical jargon
• Recovery suggestions for each error type
• Security-conscious design (no secret leakage)

Security Considerations

• Error messages never include passwords or secrets
• Debug output is sanitized
• Timing-safe comparisons where applicable

Enums

BrowserError

Browser/runtime errors (for web viewer).

DbError

Database errors.

DecryptError

Encryption/decryption errors.

ExportError

Export errors.

NetworkError

Network errors.

Traits

ErrorCode

Error code for external reference (e.g., documentation).