202366611e
The sold A/B stalled twice on preconditions no headless check exercised: the staging identity had no squad (the hub refuses to open, showing a squad update error), and any route without a Rust owner falls through to a deliberately dead Python upstream and answers 502. Each cost a full operator cycle. Sweeps the routes the client is observed to request and separates three failure classes that need different fixes: 502/PYTHON_FALLBACK (no Rust owner), missing_integrity (200 but the underlying state is absent -- exactly 'no extension stored' before the squad was seeded), and 200-but-unusable (a squad with zero occupied slots). A 200 is not proof the client is satisfied, so squad responses are judged on occupied slots. Also reads the host's own classification for the requests just made, since the host is the authority on ownership and integrity rather than the response body. Every path is verified against what the client actually sends. A first pass flagged five 'fatal' routes that were my own guesses -- /accountinfo (client uses /user/accountinfo), bare /squad (uses /squad/active), and /watchlist (camelCase watchList). Crying wolf about the stack is worse than not checking, so the list now carries only observed paths and that trap is written down in the comment. Current result: 14 ok, 0 integrity warnings, 0 fatal.