test: add dispatch fixture corpus

[galligan]

Summary

• add a first-class tests/fixtures/ corpus for App Server payloads, event JSONL, Codex transcript JSONL, CLI-smoke notes, and registry builders
• wire representative client/model/sync/registry tests to the fixture corpus so checked-in cases are exercised instead of decorative
• add scripts/check_pypi_smoke.py plus just pypi-smoke to automate the clean PyPI install/first-run smoke
• document the fixture rules and release-smoke command in agent/dev/operator docs

Testing

• uv run pytest tests/fixtures/test_corpus.py tests/client/test_client.py tests/client/test_models.py tests/registry/test_store.py -q
• uv run ruff check .
• uv run ruff format --check .
• uv run mypy src tests
• just pypi-smoke -- --package-spec outfitter-dispatch==0.5.0
• just check

Notes

• Created Linear OUT-450 for the follow-up SQLite registry/sync-index audit.
• Fixture doctrine: keep checked-in cases small, synthetic, and exercised by tests; prefer Python builders over binary SQLite fixtures.

Closes #27

[galligan]

• test: add dispatch fixture corpus #41 👈 (View in Graphite)
• main

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[galligan]

Merge activity

• Jun 11, 5:34 PM UTC: A user started a stack merge that includes this pull request via Graphite.
• Jun 11, 5:34 PM UTC: @galligan merged this pull request with Graphite.