Comprehensive error handling improvements addressing inconsistent patterns:
• Created markitect/exceptions.py with complete domain-specific exception hierarchy
- MarkitectError base class with context and cause chaining support
- Specific exceptions for Document, AST, Cache, Database, Schema operations
- Built-in logging and context preservation
• Fixed overly broad exception handling in tddai modules:
- issue_fetcher.py: Replace generic Exception with specific Gitea errors
- project_manager.py: Proper error translation with context preservation
- coverage_analyzer.py: Replace silent suppression with logging
• Enhanced cache_service.py error handling:
- Specific OSError/PermissionError handling for file operations
- Logging integration for unexpected errors
- Preserved error collection and reporting
• Implemented proper exception chaining patterns:
- All error translations use `raise ... from e` for debugging
- Preserved original exception context and stack traces
- Added docstring declarations of raised exceptions
• Benefits:
- Eliminates silent error suppression and debugging black holes
- Provides specific, actionable error messages
- Preserves full error context for troubleshooting
- Establishes consistent patterns for future development
Resolves issue #21: Error handling standardization
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
tegwick
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