4.0.0 — 2025-12-08¶

Changed¶

Error System Migration to T-Strings - Refactored error system to use t-string template formatting with inline context variables
- Removed ErrorDetailDTO and ErrorMessageType dependencies
- Added class attributes (code, message_en, message_fa, http_status, grpc_status) to BaseError
- Implemented t-string template formatting with context variables in error messages
- Override get_message() in error classes with explicit variable passing
- Applied Persian number conversion for FA language messages
- Removed deprecated http_status_code_value and grpc_status_code_value properties
- Removed _get_grpc_status_code method, use _convert_int_to_grpc_status directly
- Updated all error classes (validation, auth, resource, database, business, network, system, keycloak, temporal)
- Updated FastAPI integration, adapters, and utilities
- Fixed MyPy type errors in BaseError.to_dict() and gRPC metadata handling

Comprehensive Error Handling Tests - Added comprehensive error handling tests for FastAPI and gRPC
- Added BDD test scenarios for FastAPI error handling (fastapi_error_handling.feature)
- Added BDD test scenarios for gRPC error handling (grpc_error_handling.feature)
- Implemented test step definitions for error handling scenarios
- Added test servers and utilities for FastAPI and gRPC error testing
- Renamed "exception" to "error" in behave test files and features for consistency

Python Version References - Updated all Python version references to 3.14
- Updated documentation and configuration files to reflect Python 3.14 requirement
- Aligned version references across the codebase