Download_Crypto_Currencies_Data

End-to-end verification that dccd actually collects correct data from real exchanges. Use when asked to validate data collection, "check the data is right", verify a backfill/stream really works, or after touching pagination, adapters, or storage. Runs a real operation against a live exchange on an ISOLATED store, then proves what landed on disk matches what was requested (coverage, dedup, ordering, OHLC sanity).

Full pre-release verification gate for dccd. Use before merging to develop/master, tagging a release, or whenever asked "is this releasable?", "run the full checks", "release gate", or "vérifie que tout passe avant la release". Runs the whole quality stack — unit tests, lint, types, docs build, and (opt-in) real-exchange E2E and the UI audit — and reports a single go/no-go.

Deep, hands-on audit of the dccd web UI. Use when asked to "test the UI", "check the UI", "vérifier l'UI", verify the front-end, or make sure a UI change has no bug/regression. Goes far beyond a smoke test: it drives a real headless browser, presses every control, and — for every action — verifies BOTH what is displayed AND the data actually written to disk, plus console/JS/HTTP errors and cross-page consistency.