Implement playable Mac client and rendering validation

project/app_flow.gd

@@ -84,6 +84,36 @@ func start(assets_root: String = "", injected_client: Node = null) -> void:
 func state() -> int:
 	return _state
 
+# Read-only adapter for the packaged playable test.  It deliberately returns
+# summaries rather than the private UI/game nodes so a report cannot retain a
+# stale scene reference across reconnect or map reload.
+func get_playable_snapshot() -> Dictionary:
+	var stage := "LOGIN"
+	match _state:
+		SELECT: stage = "SELECT"
+		GAME: stage = "GAME"
+	var selected: Dictionary = {}
+	for character in _chars:
+		if int(character.get("index", -1)) == _selected_char_slot:
+			selected = {"index": _selected_char_slot, "name_present": not String(character.get("name", "")).is_empty()}
+			break
+	var scene_ready := false
+	var map_key := ""
+	if _game != null and is_instance_valid(_game) and _game.has_method("get_playable_context"):
+		var context: Dictionary = _game.get_playable_context()
+		scene_ready = bool(context.get("scene_ready", false))
+		map_key = String(context.get("map_path", ""))
+	return {"stage": stage, "selected_character": selected,
+		"character_count": _chars.size(), "scene_ready": scene_ready,
+		"map_key": map_key, "reconnecting": _reconnecting_game}
+
+# Internal test adapter: callers must treat returned Node references as
+# borrowed and reacquire them after every scene/reconnect transition.
+func get_playable_context() -> Dictionary:
+	if _game == null or not is_instance_valid(_game) or not _game.has_method("get_playable_context"):
+		return {}
+	return _game.get_playable_context()
+
 # --- client 信号 -------------------------------------------------------------
 
 func _wire_client() -> void: