fifa17-recon: store fix (v2/store gate + flags) + full FUT endpoint map

Store "not available" root cause reversed from CardsDLL:
- ut/v2/game/fifa17/store is an ELIGIBILITY gate (FutStorePackQuantities
  deser 0x1801758c0), not a quantity list. It reads one key "result"
  (atom 0x288); the store screen refuses to open unless SUCCESS. Was
  unhandled -> catch-all {} -> "not available". Now returns {"result":"SUCCESS"}.
- Store-screen entitlement checks (0x18001749d/0x1800175a2) read IS_*/
  *_PURCHASE_ENABLED Blaze flags, separate from storeEnabled. Added the full
  confirmed set (14 flags) to FUT_RS4_CONFIG.
- Catalog: assetId (0x23) is the real pack identity; extPrice inner keys are
  amount/currency (not mtx). (Also gated client-side by GetSystemMetrics>1024x768.)

Full FUT API reversed (clean-room, CardsDLL only) into docs/ENDPOINT_MAP.md:
~100 FutXServerResponse types across 7 feature groups (market, SBC, draft,
seasons/match, club, store, user/hub), each with deserializer VA, atom-mapped
field schema + types, freeze-risk flags, and minimal known-good JSON.
Tooling kept: tools/atomdump.py (dumps the 907-atom key table at 0x1802d2760)
-> docs/fut_atoms.tsv. Research prompt: docs/OPENCODE_ENDPOINT_PROMPT.md.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PN5bmpDVQR1aXgefyWAt7o

fifa17-recon/tools/blaze_responder_v3b.py

@@ -575,6 +575,18 @@ FUT_RS4_CONFIG = (
     [("FUT_RS4_APIURL_%s" % m, UTAS_BASE) for m in FUT_RS4_MODULES]
     + [("FUT_RS4_URL_%s" % c, UTAS_BASE) for c in FUT_RS4_CALLS_BOOT]
     + [("FUT_RS4_BASE_URL", UTAS_BASE)]
+    # STORE gate: FIFA shows "store not available" unless these config flags are
+    # true. The store-screen entitlement checks (CardsDLL 0x18001749d vtable+0x138 /
+    # 0x1800175a2 vtable+0x280) read the IS_*/*_PURCHASE_ENABLED booleans -- SEPARATE
+    # from storeEnabled. Full confirmed list from ENDPOINT_MAP store § (grepped in
+    # cardsdll.strings). (Also gated by GetSystemMetrics > 1024x768, client-side.)
+    + [(k, "1") for k in (
+        "storeEnabled", "cardPackStoreEnabled", "pointsPackStoreEnabled",
+        "cardPackStoreEnabled_JP", "coinEnabled", "coinEnabled_JP",
+        "IS_STORE_ENABLED", "IS_COIN_PURCHASABLE", "IS_FIFAPOINT_AVAILABLE",
+        "IS_FIFAPOINT_PURCHASABLE", "IS_EASTORE_SERVICE_READY",
+        "COINS_PURCHASE_ENABLED", "POINTS_PURCHASE_ENABLED", "MONEY_PURCHASE_ENABLED",
+    )]
     # NOTE: do NOT advertise itemDbVersion/checkServerDbVersion here or in any
     # response -- proven inert (wf_96b6c0c5): they are JSON field names that route
     # to the value-SKIP handler 0x180135ff0, never compared. See docs/CARD_SYSTEM.md.