feat: add autoloads, GameController, TrainingController, and ReplayRecorder

src/game/training_controller.gd

@@ -0,0 +1,16 @@
+# src/game/training_controller.gd
+class_name TrainingController
+extends GameController
+
+var _current_hint: HandEvaluator.EvaluatedPlay = null
+
+func get_hint() -> HandEvaluator.EvaluatedPlay:
+    var hand := game_state.get_hand(game_state.round.active_player_idx)
+    if hand.is_empty():
+        return null
+    var ai := L2RuleAI.new()
+    return ai.decide(hand, game_state.round.table, game_state.current_rank, game_state.rule_config)
+
+func get_all_legal_moves() -> Array:
+    var hand := game_state.get_hand(game_state.round.active_player_idx)
+    return MoveGenerator.generate(hand, game_state.current_rank, game_state.rule_config)