feat: update shop

scripts/managers/user_profile_manager.gd

@@ -12,6 +12,7 @@ var stats: Dictionary = {}
 var wallet: Dictionary = {"gold": 0, "star": 0}
 var inventory: Array = []
 var loadout: Dictionary = {"head": "", "costume": "", "glove": "", "accessory": ""}
+var shop_catalog: Dictionary = {}
 var is_profile_loaded: bool = false
 
 # Nakama storage collection names
@@ -107,7 +108,7 @@ func load_profile() -> Dictionary:
 	
 	is_profile_loaded = true
 	emit_signal("profile_loaded", profile)
-	print("[UserProfileManager] Profile loaded: ", profile.display_name)
+	print("[UserProfileManager] Profile loaded: ", profile.get("display_name", "Unknown"))
 	
 	# Auto-sync existing score to native Nakama leaderboard in background
 	if stats.get("high_score", 0) > 0 and NakamaManager.session and not AuthManager.is_guest:
@@ -315,6 +316,55 @@ func purchase_item(item_id: String, price_gold: int, price_star: int, category:
 	emit_signal("profile_updated")
 	return true
 
+func fetch_shop_catalog() -> void:
+	if not NakamaManager.session: return
+	
+	var result = await NakamaManager.client.rpc_async(
+		NakamaManager.session,
+		"get_shop_catalog",
+		"{}"
+	)
+	
+	if result.is_exception():
+		push_error("[UserProfileManager] Failed to fetch shop catalog: ", result.get_exception().message)
+		return
+		
+	var payload: Dictionary = JSON.parse_string(result.payload)
+	if payload and payload.has("catalog"):
+		shop_catalog = payload.catalog
+		emit_signal("profile_updated")
+
+func buy_currency(package_id: String) -> bool:
+	if not NakamaManager.session: return false
+	
+	var payload = JSON.stringify({
+		"package_id": package_id
+	})
+	
+	var result = await NakamaManager.client.rpc_async(
+		NakamaManager.session,
+		"buy_currency",
+		payload
+	)
+	
+	if result.is_exception():
+		push_error("[UserProfileManager] Failed to buy currency: ", result.get_exception().message)
+		return false
+		
+	await _reload_wallet()
+	return true
+
+func _reload_wallet() -> void:
+	if not NakamaManager.session: return
+	var account = await NakamaManager.client.get_account_async(NakamaManager.session)
+	if account.is_exception(): return
+	if account.wallet:
+		var w_data = JSON.parse_string(account.wallet)
+		if w_data:
+			wallet["gold"] = w_data.get("gold", 0)
+			wallet["star"] = w_data.get("star", 0)
+			emit_signal("profile_updated")
+
 # =============================================================================
 # Stats Management
 # =============================================================================