master-server replay + trampler RE: protocol, hashes, footprints, map renderer

- master_scrape.py: live master-server (ger.hologryph.com) ClientMessage replay over the
  two-socket /login + /connect handshake (PlayFab ticket auth). Pulled compartment defs,
  shop prices, research tree, storage, characters, expedition -> extracted/master_*.json
- PlayFab confirmed auth-only for this title (Economy disabled); docs corrected
- trampler_hashes.py: blueprint hash algo MD5(UTF8(compact-JSON)); CompartmentsHash(#1) and
  ConnectionsHash(#3) verified & generatable from scratch
- walkerdto_to_blueprint.py: WalkerDto(expedition) -> WalkerBlueprintDto, enum int<->name,
  verified by storage->WS->storage round-trip
- render_trampler.py: per-floor map from CompartmentsDatabase cell footprints (rotation solved
  via overlap check) + doors/hatches from Connections + turret arcs + cargo C1-C8 in game order
- docs/MASTER_SERVER.md, docs/TRAMPLER.md; ghidra address-offset bug fixed (no -0x1000)

docs/BACKEND_PLAYFAB.md

@@ -1,5 +1,14 @@
 # Backend = PlayFab (Azure) — acquiring server-authoritative data
 
+> **CORRECTIONS (2026-06-15, from a live playtest + code-verified RE — these override claims below):**
+> - **PlayFab is auth-only for this title.** Economy v2 is disabled (`403 "Catalog is not enabled
+>   for this title"`); the classic catalog/inventory are empty. The economy (compartment stats,
+>   prices, research) is **not** in PlayFab — it's on the master server. PlayFab does
+>   `LoginWithSteam` + profile + one `TitleData` walker blueprint (`TramplerBlueprint3`). TitleId = **56693**.
+> - **Master server is NOT gRPC/SignalR and NOT cleartext `ws://:80`.** It's a custom per-call
+>   WebSocket RPC over **`wss://:443`**, JSON, auth = PlayFab `SessionTicket` as a query param of the
+>   `Login` op. Full spec + scraper: **[MASTER_SERVER.md](MASTER_SERVER.md)** (`reverse/master_scrape.py`).
+
 ## Observed boot behavior — no active playtest (GROUND TRUTH, reported by user)
 
 When no playtest is running, the exact, observed sequence is: