Initial commit: OpenFUT Core

Offline Ultimate Team backend — game-independent REST API.

- 19 API endpoints: auth, profiles, clubs, cards, packs, squads,
  objectives, SBCs, match rewards, NPC market, statistics
- Axum + SQLite + SQLx with full migrations
- Weighted pack generator, SBC validation engine
- JSON-driven mod data (cards, packs, objectives, SBCs)
- 5 integration tests passing

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

src/models/statistics.rs

@@ -0,0 +1,34 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize, sqlx::FromRow)]
+pub struct Statistics {
+    pub profile_id: String,
+    pub matches_played: i64,
+    pub matches_won: i64,
+    pub matches_drawn: i64,
+    pub matches_lost: i64,
+    pub goals_scored: i64,
+    pub goals_conceded: i64,
+    pub packs_opened: i64,
+    pub sbcs_completed: i64,
+    pub total_coins_earned: i64,
+    pub updated_at: String,
+}
+
+impl Statistics {
+    pub fn new(profile_id: impl Into<String>) -> Self {
+        Self {
+            profile_id: profile_id.into(),
+            matches_played: 0,
+            matches_won: 0,
+            matches_drawn: 0,
+            matches_lost: 0,
+            goals_scored: 0,
+            goals_conceded: 0,
+            packs_opened: 0,
+            sbcs_completed: 0,
+            total_coins_earned: 0,
+            updated_at: chrono::Utc::now().to_rfc3339(),
+        }
+    }
+}