refactor GigaChat configuration to remove certificate path requirements; update documentation and tests to reflect changes in client implementation and error handling

add function to escape percentage signs in Alembic database URL; update configuration to use escaped URL for improved compatibility

update alembic.ini to use a generic database URL format; enhance docker-entrypoint.sh to validate alembic configuration and ensure necessary files are present before running migrations

update alembic configuration to use relative script location; modify docker entrypoint to change working directory and specify alembic config path for database migrations

update README to use Poetry for dependency management and command execution; enhance instructions for database migrations and application startup

refactor GigaChat integration to utilize LangChain for mTLS communication; update documentation and tests to reflect new client implementation and configuration changes

refactor GigaChat integration to use direct HTTP calls with improved TLS handling; remove deprecated parameters and update documentation and tests accordingly

add GIGACHAT_CLIENT_TLS_MODE to configuration; update documentation and tests for improved TLS handling

add optional TLS parameters for GigaChat configuration; enhance SSL context handling and update documentation and tests

refactor GigaChat configuration to remove deprecated parameters and enhance authentication requirements; update related documentation and tests accordingly

refactor GigaChat integration to utilize LangChain for mTLS communication; update documentation and tests to reflect new client implementation and configuration changes

refactor GigaChat integration to use direct HTTP calls with improved TLS handling; remove deprecated parameters and update documentation and tests accordingly

add GIGACHAT_CLIENT_TLS_MODE to configuration; update documentation and tests for improved TLS handling

add optional TLS parameters for GigaChat configuration; enhance SSL context handling and update documentation and tests

refactor GigaChat configuration to remove deprecated parameters and enhance authentication requirements; update related documentation and tests accordingly

update GigaChat client configuration to support new parameters and improve authentication handling; pin httpx version and add langchain-core dependency