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)

reverse/master_scrape.py

@@ -40,7 +40,7 @@ OUTDIR = os.path.join(ROOT, "extracted")
 REGION_BASES = {r: "wss://%s.hologryph.com/gameclient/" % r
                 for r in ("ger", "eus", "westus", "sin", "bra", "aus", "sko", "uae")}
 MT_ACTION = 2
-ACTIONS = {"Login": 0, "Connect": 1, "GetCharacters": 2, "SelectCharacter": 4, "GetTrampler": 16,
+ACTIONS = {"Login": 0, "Connect": 1, "GetCharacters": 2, "GetExpedition": 7, "SelectCharacter": 4, "GetTrampler": 16,
            "UpsertTrampler": 17, "GetStorage": 20, "GetNews": 21, "GetCompartmentDefinitions": 23,
            "GetDatabaseGuid": 26, "GetDefaultWalkerBlueprints": 28, "GetServers": 29,
            "GetResearchTree": 32, "GetShopItems": 39}