feat(SCOPONE-0013): PIMC AI rewrite + Gitea Android CI pipeline

- Replace minimax with PIMC (Perfect Information Monte Carlo) search
- Add PIMC_SCOPE_BOOST=150 → effective scopa value 540 (was 390)
  → Master win rate: 67.5% → 72.5% vs legacy AI (target ≥60%)
  → Advanced win rate: 97.5% vs beginner AI (target ≥55%)
  → Scope gap in losses: 6.54 → 3.00 scopa/match
- Add card inference engine for probabilistic hand tracking
- Add ai-strategy, ai-legacy evaluation bridge
- Add .gitea/workflows/android-build.yml: build debug + unsigned
  release APK and publish to Gitea generic package registry

src/scenes/GameScene.ts

@@ -7,6 +7,7 @@ import {
 import { AIMove, AIDecisionProgress } from '../game/ai';
 import { AIWorkerClient, AIWorkerClientLike } from '../game/ai-worker-client';
 import { CardTracker } from '../game/card-tracker';
+import { CardInferenceEngine } from '../game/card-inference';
 import {
   DEFAULT_AUDIO_PREFERENCES,
   GameSceneData,
@@ -71,6 +72,7 @@ export class GameScene extends Phaser.Scene {
   // Difficulty & card tracker
   private difficulty: Difficulty = 'advanced';
   private tracker: CardTracker = new CardTracker();
+  private inference: CardInferenceEngine = new CardInferenceEngine(this.tracker);
   private aiClient: AIWorkerClientLike | null = null;
 
   // Active player highlight
@@ -133,6 +135,7 @@ export class GameScene extends Phaser.Scene {
       ? normalizeAudioPreferences(data.audioPreferences)
       : loadAudioPreferences();
     this.tracker = new CardTracker();
+    this.inference = new CardInferenceEngine(this.tracker);
     this.aiClient?.dispose();
     this.aiClient = new AIWorkerClient();
     this.events.once(Phaser.Scenes.Events.SHUTDOWN, this.handleSceneShutdown, this);
@@ -793,7 +796,8 @@ export class GameScene extends Phaser.Scene {
           this.updateThinkBar(playerIdx, progress);
           if (progress.difficulty !== 'master') return;
           finalProgress = progress;
-        }
+        },
+        { inference: this.inference },
       );
 
       const remainingThinkMs = AI_MIN_THINK_MS - (Date.now() - thinkStartedAt);
@@ -1018,6 +1022,7 @@ export class GameScene extends Phaser.Scene {
   // ---------------------------------------------------------------------------
 
   private executeMove(playerIdx: PlayerIndex, card: Card, capture: Card[]): void {
+    const tableBeforeMove = [...this.state.table];
     const { nextState, capture: captureResult, isScopa } = applyMove(
       this.state, playerIdx, card, capture.length > 0 ? capture : undefined
     );
@@ -1030,6 +1035,13 @@ export class GameScene extends Phaser.Scene {
       this.tracker.trackCapture(captureResult.captured);
     }
 
+    // Update inference engine
+    this.inference.onMove(
+      playerIdx,
+      { card, capture: captureResult?.captured ?? [] },
+      tableBeforeMove,
+    );
+
     const cardImg = this.cardImages.get(card.id)!;
     cardImg.setDepth(15);
 
@@ -1650,6 +1662,7 @@ export class GameScene extends Phaser.Scene {
     for (const img of this.cardImages.values()) img.destroy();
     this.cardImages.clear();
     this.tracker.reset();
+    this.inference.reset();
     this.state = createInitialState(nextDealer);
     this.state.matchStartingPlayer = matchStartingPlayer;
     this.state.teamScores[0].totalPoints = totals[0];