fix: Remove deprecated 'env=...' parameters in config.py

[jonpspri]

Summary

Remove deprecated env=... parameters from Pydantic Field definitions in config.py. Pydantic automatically infers environment variable names from field names, making the explicit env= parameter unnecessary and deprecated.

Changes

• Remove env="PORT", env="JWT_SECRET_KEY", env="AUTH_ENCRYPTION_SECRET"
• Remove env parameters from security and CORS settings (SECURE_COOKIES, COOKIE_SAMESITE, etc.)
• Remove env="LOG_LEVEL", env="ENVIRONMENT", env="APP_DOMAIN"
• Remove env="FEDERATION_PEERS", env="SSO_ISSUERS"

All environment variables continue to work as before through Pydantic's automatic inference based on field names.

Test plan

• Configuration loading works correctly without env= parameters
• All environment variables are still recognized by Pydantic
• No functional changes to application behavior

Generated with Claude Code

[Copilot]

Pull Request Overview

This PR performs configuration cleanup and migrates the project to use uv for dependency management. The changes modernize the build system, remove deprecated Pydantic configurations, fix type hints, and improve CI workflows.

• Remove deprecated env=... parameters from Pydantic Field definitions
• Migrate pytest workflows and Makefile from pip to uv for better dependency management
• Fix type annotations for keep_alive parameter in translate.py functions
• Reorganize pyproject.toml dependency structure and resolve conflicts

Reviewed Changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/integration/test_translate_echo.py	Modernized test code with proper type hints, improved assertions, and pytest fixture usage
pyproject.toml	Restructured dependencies from optional-dependencies to dependency-groups and removed conflicts
mcpgateway/translate.py	Fixed type hints for keep_alive parameters from int to float
mcpgateway/config.py	Removed deprecated env= parameters from Pydantic Field definitions
docs/docs/manage/observability/observability.md	Enhanced documentation with detailed backend comparison guide
Makefile	Updated to use uv/uvx for test execution and semgrep scanning
.github/workflows/pytest.yml	Migrated CI workflow from pip to uv for dependency management

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