feat(host): migrate non-economy UTAS routes to Rust + launcher redesign

Host/adapter (deployed to prod-host):
- POST /ut/auth (+/ut/delete/auth): Rust mints sid, opens Rust session, adopts
  persona from body; POST /openfut/account/sync full Rust envelope.
- GET /userMassInfo: full Rust (was proxy+overlay), shared build_user_mass_info.
- GET/PUT /clientdata/<key>: new clientdata_store.rs (JSON-persisted).
- GET /club/stats/{country,league,team}: context-aware club_stats_body
  (nation/league/team buckets).
- GET /store,/match/keepalive,/captcha,/tfa,/livemessage,/activeMessage: StaticAck.
- GET /watchList, /squad/0, /user: Rust handlers.
- host_test.rs updated for the new routing.

Launcher: bump gitlink to c277213 (shareholder-grade redesign + live account panel).

Docs: PRODUCTION_AUTHORITY_MATRIX, PYTHON_RETIREMENT_PLAN, MATCH_LIFECYCLE, and
route-shapes-2026-08-17 reference fixtures for the still-Python tail.

docs/evidence/route-shapes-2026-08-17/user.json

@@ -0,0 +1,54 @@
+{
+  "userInfo": {
+    "accountCreatedPlatformName": "pc",
+    "actives": [],
+    "bidTokens": {
+      "count": 0,
+      "updateTime": 0
+    },
+    "clubAbbr": "OFC",
+    "clubName": "OpenFUT",
+    "clubNameChangeAllowed": false,
+    "currencies": [
+      {
+        "active": true,
+        "finalFunds": 29876776,
+        "funds": 29876776,
+        "name": "coins"
+      },
+      {
+        "active": true,
+        "finalFunds": 0,
+        "funds": 0,
+        "name": "points"
+      }
+    ],
+    "divisionOffline": 10,
+    "divisionOnline": 10,
+    "draw": 0,
+    "established": "2026",
+    "feature": {},
+    "loss": 0,
+    "personaId": 33068179,
+    "purchased": false,
+    "reliability": {
+      "matchUnfinishedTime": 0,
+      "reliability": 100
+    },
+    "sessionCoinsBankBalance": 0,
+    "squadList": {
+      "squad": [
+        {
+          "chemistry": 49,
+          "formation": "f433",
+          "id": 0,
+          "rating": 89,
+          "squadName": "OpenFUT",
+          "squadType": "REGULAR_SQUAD"
+        }
+      ]
+    },
+    "trophies": 0,
+    "won": 0
+  }
+}