claude-code-chat-browser: SessionMetadataDict — tighten all-NotRequired fields for mypy shape enforcement #228

Job	Run time
Performance benchmarks (gated)	32s
Frontend unit tests (vitest) (macos-latest)	39s
ruff + pip-audit (windows-latest)	59s
API integration tests + coverage (macos-latest)	19s
pytest (windows-latest)	1m 31s
pytest (macos-latest)	48s
Verify prod requirements.txt is sufficient	8s
pytest (ubuntu-latest)	47s
Frontend unit tests (vitest) (windows-latest)	52s
mypy	19s
API integration tests + coverage (ubuntu-latest)	19s
API integration tests + coverage (windows-latest)	55s
Frontend unit tests (vitest) (ubuntu-latest)	20s
ruff + pip-audit (macos-latest)	22s
ruff + pip-audit (ubuntu-latest)	21s
	9m 11s

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