Migrate recent operations read to FastAPI

[cbusillo]

Summary

• migrate GET /v1/contexts/{context}/operations/recent to a native FastAPI route
• delete the legacy WSGI operations.read matcher/handler path
• add typed Pydantic/OpenAPI coverage plus auth-before-store and fallback-retirement tests

Validation

• uv run python -m unittest tests.test_http_app.FastApiRecentOperationsReadTests tests.test_service.LaunchplaneServiceTests.test_single_record_read_routes_are_retired_from_legacy_wsgi_app
• uv run python -m unittest tests.test_http_app tests.test_service
• uv run python -m unittest
• uv run --extra dev ruff check --diff .
• uv run --extra dev ruff check .
• uv run --extra dev ruff check control_plane/http_app.py control_plane/service.py tests/test_http_app.py tests/test_service.py
• uv run --extra dev ruff format --check control_plane/http_app.py control_plane/service.py tests/test_http_app.py tests/test_service.py
• uv run --extra dev mypy control_plane tests
• uv run /Users/cbusillo/Developer/codex-skills/jetbrains-inspection/scripts/jb-inspect.py closeout --repo "$PWD" --scope changed_files

Review

• Scout agents confirmed the route can move alone and should pre-authorize operations.read before store access.
• Final review agents: 3/3 reported no blocking findings and merge-ready.

Notes

• Full ruff format --check . still reports existing repo-wide formatting drift outside touched files; touched files are formatted.

Refs #1322