Initial commit: OpenFUT Core + Bridge scaffold

Two-repo monorepo for an offline FUT backend inspired by SPT.

openfut-core: game-independent REST API backend (Axum, SQLite, SQLx)
- 19 API endpoints: auth, profiles, clubs, cards, packs, squads,
  objectives, SBCs, match rewards, NPC market, statistics
- JSON-driven card/pack/objective/SBC data (fully moddable)
- SQLx migrations, weighted pack generator, SBC validation engine
- 5 integration tests passing

openfut-bridge: FIFA 23 traffic proxy + reverse-engineering scaffold
- Catch-all HTTP proxy with request capture to captures/
- Known-route mapper (FUT paths → Core API calls)
- Placeholder responses for unknown endpoints
- Admin endpoints: captures, unknown endpoint list
- 4 unit tests passing

cargo fmt ✓  cargo clippy -D warnings ✓  cargo test ✓

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

openfut-core/data/sbcs/starter_sbcs.json

@@ -0,0 +1,50 @@
+[
+  {
+    "id": "sbc_bronze_upgrade",
+    "name": "Bronze Upgrade",
+    "description": "Submit 11 bronze players for a silver pack.",
+    "requirements": {
+      "squad_size": 11,
+      "min_overall": null,
+      "max_overall": 64,
+      "min_chemistry": null,
+      "required_leagues": [],
+      "required_nations": [],
+      "required_clubs": [],
+      "min_players_from_same_league": null,
+      "min_players_from_same_nation": null,
+      "min_players_from_same_club": null
+    },
+    "reward": {
+      "coins": 0,
+      "xp": 200,
+      "pack_id": "silver_pack"
+    },
+    "expires_at": null,
+    "repeatable": true
+  },
+  {
+    "id": "sbc_hybrid_nations",
+    "name": "Hybrid Nations",
+    "description": "Build a squad of 11 players with at least one Brazilian and one Argentinian.",
+    "requirements": {
+      "squad_size": 11,
+      "min_overall": 70,
+      "max_overall": null,
+      "min_chemistry": null,
+      "required_leagues": [],
+      "required_nations": ["Brazil", "Argentina"],
+      "required_clubs": [],
+      "min_players_from_same_league": null,
+      "min_players_from_same_nation": null,
+      "min_players_from_same_club": null
+    },
+    "reward": {
+      "coins": 2000,
+      "xp": 400,
+      "pack_id": "gold_pack"
+    },
+    "expires_at": null,
+    "repeatable": false
+  }
+]