test: eliminate remaining test warnings for warning-free test suite

[jonpspri]

Summary

This PR completes the test warning cleanup effort started in #1344 and #1342, achieving a fully warning-free test suite when running make test.

Changes

Core Code:

• Added explicit type hints for session registry attributes (_session_message, _cleanup_task, DB return types)
• Added done_callback to fire-and-forget asyncio futures to prevent ResourceWarning
• Implemented proper logging handler cleanup in LoggingService.shutdown()
• Replaced deprecated Pydantic v1 .dict() with v2 .model_dump()
• Fixed line continuation formatting in content_moderation plugin

Tests:

• Fixed AsyncMock usage in session_registry tests with proper SSETransport fixtures
• Improved mock typing with cast() to prevent type warnings
• Removed duplicate test code by consolidating mock fixtures
• Added pytest-integration-mark dependency

Result

All tests now pass without warnings, improving test output clarity and ensuring proper resource cleanup during test execution.

[Copilot]

Pull Request Overview

This pull request improves test reliability and code quality by addressing mock-related warnings and type safety issues. The changes fix unawaited coroutine warnings in tests, improve type annotations, and update deprecated API usage.

• Replaces AsyncMock with MagicMock or new_callable=AsyncMock where appropriate to prevent unawaited coroutine warnings
• Adds proper type annotations for optional attributes and return types
• Updates deprecated Pydantic .dict() to .model_dump() calls
• Improves test assertions and removes unused imports

Reviewed Changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
uv.lock	Adds pytest-integration-mark dependency and reorders prometheus dependencies
pyproject.toml	Adds pytest-integration-mark>=0.2.0 to dev dependencies
tests/unit/mcpgateway/test_reverse_proxy.py	Fixes AsyncMock usage to prevent unawaited coroutines and improves test structure
tests/unit/mcpgateway/test_display_name_uuid_features.py	Adds warning suppression for SQLAlchemy integrity error test
tests/unit/mcpgateway/services/test_logging_service_comprehensive.py	Replaces AsyncMock with real async functions and adds proper assertions
tests/unit/mcpgateway/routers/test_teams.py	Updates datetime usage to timezone-aware and removes unused variable
tests/unit/mcpgateway/federation/test_discovery.py	Removes commented code and fixes monkeypatch usage
tests/unit/mcpgateway/cache/test_session_registry_extended.py	Adds shared mock fixture and improves type safety with casts
plugins/content_moderation/content_moderation.py	Updates Pydantic API and improves code formatting
mcpgateway/transports/streamablehttp_transport.py	Updates deprecated .dict() to .model_dump()
mcpgateway/services/logging_service.py	Adds future callback for fire-and-forget pattern and storage handler cleanup
mcpgateway/cache/session_registry.py	Adds type annotations for optional attributes and improves type safety

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[Copilot]

Type annotation on assignment is incorrect. The variable _session_message is being assigned a dict value {\"session_id\": session_id, \"message\": msg_json}, but the annotation indicates it could be None. This should be just self._session_message = {\"session_id\": session_id, \"message\": msg_json} without the type annotation, as the type was already declared at initialization (line 188).

Suggested change

	self._session_message: Dict[str, Any] | None = {"session_id": session_id, "message": msg_json}
	self._session_message = {"session_id": session_id, "message": msg_json}

[Copilot]

[nitpick] Import order violates convention. The asyncio import should come before from unittest.mock import AsyncMock since standard library imports should be alphabetically ordered or at least consistently ordered.

Suggested change

	import asyncio
	from unittest.mock import AsyncMock
	from unittest.mock import AsyncMock
	import asyncio

[Copilot]

Creating an unused instance of TeamManagementService. This line creates a service instance but doesn't use it, which is wasteful. If the instantiation is not needed for side effects, this line should be removed entirely.

Suggested change

_ = TeamManagementService(db)

[Copilot]

The done callback silently ignores exceptions. While this may be intentional for the fire-and-forget pattern, the lambda should at least log the exception when it occurs for debugging purposes, similar to how exceptions are handled elsewhere in this module.

[Copilot]

Module 'mcpgateway.services.logging_service' is imported with both 'import' and 'import from'.