Complete M11 Creator Studio and M12 Trust & Safety for PC5

- Creator Studio: Visual behavior & property inspector, GLB model importer, binary persistence
- Trust & Safety: 18+ TOS confirmation (DOB removed), creator guidelines & briefing card on join, in-game reporting HUD
- Test Harness: Add --filter, --skip-backend, --skip-godot to run_checkpoint_tests.py

scripts/static_object_node.gd

@@ -14,6 +14,9 @@ extends Node3D
 ##  └── MeshInstance3D  # the object's visual mesh
 ## ```
 
+const ScriptBehaviorClass := preload("res://scripts/scripting/script_behavior.gd")
+const ScriptInterpreterNodeClass := preload("res://scripts/scripting/script_interpreter.gd")
+
 ## The world object data this node represents.
 var world_object: WorldObject = null
 
@@ -25,6 +28,29 @@ func _ready() -> void:
 	if world_object == null:
 		return
 	_load_mesh()
+	_setup_behavior()
+
+
+func _setup_behavior() -> void:
+	if world_object == null or not world_object.properties is Dictionary:
+		return
+	var b_dict = world_object.properties.get("script_behavior", world_object.properties.get("behavior"))
+	if b_dict is Dictionary and not b_dict.is_empty():
+		var behavior := ScriptBehaviorClass.load_from_dict(b_dict)
+		if behavior != null and not behavior.rules.is_empty():
+			var existing := get_node_or_null("ScriptInterpreter")
+			if existing != null:
+				existing.queue_free()
+			var interp := ScriptInterpreterNodeClass.new()
+			interp.name = "ScriptInterpreter"
+			interp.behavior = behavior
+			add_child(interp)
+
+
+func update_behavior(behavior_dict: Dictionary) -> void:
+	if world_object != null:
+		world_object.properties["script_behavior"] = behavior_dict
+	_setup_behavior()
 
 
 ## Load and attach the object's mesh.
@@ -53,6 +79,8 @@ func _get_catalog_id() -> String:
 func _try_load_asset(asset_id: String) -> Node:
 	if asset_id.is_empty():
 		return null
+
+	# 1. Try standard project asset path (res://assets/...)
 	var path := "res://assets/%s" % asset_id
 	if ResourceLoader.exists(path):
 		var res := load(path)
@@ -63,9 +91,38 @@ func _try_load_asset(asset_id: String) -> Node:
 			mi.name = "mesh"
 			mi.mesh = res as Mesh
 			return mi
+
+	# 2. Try direct path or custom asset path
+	var candidate_paths: Array[String] = [
+		asset_id,
+		"user://custom_assets/%s" % asset_id,
+		"user://custom_assets/%s" % asset_id.get_file()
+	]
+
+	for cpath in candidate_paths:
+		if FileAccess.file_exists(cpath):
+			if cpath.ends_with(".glb") or cpath.ends_with(".gltf"):
+				var gltf := GLTFDocument.new()
+				var state := GLTFState.new()
+				var err := gltf.append_from_file(cpath, state)
+				if err == OK:
+					var scene := gltf.generate_scene(state)
+					if scene != null:
+						return scene
+			elif ResourceLoader.exists(cpath):
+				var res := load(cpath)
+				if res is PackedScene:
+					return (res as PackedScene).instantiate()
+				elif res is Mesh:
+					var mi := MeshInstance3D.new()
+					mi.name = "mesh"
+					mi.mesh = res as Mesh
+					return mi
+
 	return null
 
 
+
 func _build_procedural_object(cat_id: String) -> void:
 	var container := Node3D.new()
 	container.name = "visuals"