gitignore + untrack extracted/ (kept on disk); master-server GetExpedition op

- .gitignore: ignore /extracted/ (regenerable game data) and /tmp/ (scratch)
- git rm --cached the 38 extracted/ files: untracked but left on disk, not deleted
- master_scrape.py: add GetExpedition=7 to ACTIONS (was missing; pulls ExpeditionDto.Trampler)
- docs: mark master-server /connect blocker cleared 2026-06-16 (server back up);
  server-side upsert hash validation remains untested (live re-test not yet run)

CLAUDE.md

@@ -85,7 +85,8 @@ hashes is harmless: a walker with blank hashes still **loads, lists, and opens i
 flag in `Player.log`'s `CheckValidBlueprint: ERRORS {0}, VERSION:{1}` (=`WalkerBlueprintContainer
 .ValidateVersion`, which recomputes against the *current* DB/definitions) tracks only the **structural**
 hashes (Compartments/Connections); Definition hashes don't affect client validation. Server-side upsert
-validation is untested (blocked by master-server `/connect` errors during the playtest).
+validation is untested (the master-server `/connect` blocker is cleared as of 2026-06-16 — server back
+up — but the live re-test has not been run yet).
 
 Enum tables (from `dump.cs`): `ConnectionSlotType` 0 DOOR,1 HATCH,2 STRUCTURE,3 BALCONY,4 DECK ·
 `ConnectionState` 0 DEFAULT,1 DOOR,2 OPEN · `ConnectionsCount` 0 FULL,1 PARTIAL,2 ERROR. Note the