Lukas
4f7316c484
- Add RequestValidationError handler that converts Pydantic validation errors to unified ErrorResponse format - Ensures all error responses return consistent schema: code, detail, metadata, correlation_id - Add field_errors count and first_field location to metadata for validation errors - Register handler in exception handler hierarchy before HTTPException handler - Add comprehensive tests for validation error responses - Update Backend-Development.md documentation to include correlation_id field and validation error details - All 44 error-related tests pass (38 existing + 6 new validation tests) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>