test: gate memory-path benchmarks in baselines (parse + ZIP export) (… #213

Job	Run time
Frontend unit tests (vitest) (windows-latest)	50s
pytest (windows-latest)	1m 22s
ruff + pip-audit (windows-latest)	58s
Frontend unit tests (vitest) (ubuntu-latest)	19s
ruff + pip-audit (macos-latest)	20s
Frontend unit tests (vitest) (macos-latest)	25s
API integration tests + coverage (macos-latest)	20s
pytest (ubuntu-latest)	45s
pytest (macos-latest)	30s
mypy	21s
API integration tests + coverage (ubuntu-latest)	21s
Verify prod requirements.txt is sufficient	8s
ruff + pip-audit (ubuntu-latest)	23s
API integration tests + coverage (windows-latest)	59s
Performance benchmarks (gated)	32s
	8m 33s

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