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/game.gd

@@ -35,9 +35,12 @@ var _status_label: Label = null
 ## enters 'build mode'... so the runtime footprint is negligible during
 ## normal play"). Editing is in-memory only here; the save path to the
 ## backend is a sibling task (world_persistence_impl.md).
+const ReportModal = preload("res://scripts/report_modal.gd")
+
 var _build_editor: InGameEditor = null
 var _chat_overlay: Control = null
 var _friends_overlay: Control = null
+var _report_modal: Control = null
 var _hud_layer: CanvasLayer = null
 var _overlay_layer: CanvasLayer = null
 
@@ -194,7 +197,9 @@ func _unhandled_input(event: InputEvent) -> void:
 	# ESC leaves the world back to the browser (or closes an open overlay/editor).
 	if event.is_action_pressed("ui_cancel"):
 		get_viewport().set_input_as_handled()
-		if _chat_overlay != null and is_instance_valid(_chat_overlay):
+		if _report_modal != null and is_instance_valid(_report_modal):
+			_close_report_modal()
+		elif _chat_overlay != null and is_instance_valid(_chat_overlay):
 			_close_chat_overlay()
 		elif _friends_overlay != null and is_instance_valid(_friends_overlay):
 			_close_friends_overlay()
@@ -255,10 +260,17 @@ func _setup_in_game_hud() -> void:
 	build_btn.pressed.connect(_toggle_build_mode)
 	bar.add_child(build_btn)
 
+	var report_btn := Button.new()
+	report_btn.text = "🚩 Report"
+	report_btn.pressed.connect(_toggle_report_modal)
+	bar.add_child(report_btn)
+
 	var exit_btn := Button.new()
 	exit_btn.text = "🚪 Menu [ESC]"
 	exit_btn.pressed.connect(func():
-		if _chat_overlay != null and is_instance_valid(_chat_overlay):
+		if _report_modal != null and is_instance_valid(_report_modal):
+			_close_report_modal()
+		elif _chat_overlay != null and is_instance_valid(_chat_overlay):
 			_close_chat_overlay()
 		elif _friends_overlay != null and is_instance_valid(_friends_overlay):
 			_close_friends_overlay()
@@ -270,6 +282,49 @@ func _setup_in_game_hud() -> void:
 	bar.add_child(exit_btn)
 
 
+func _toggle_report_modal() -> void:
+	if _report_modal != null and is_instance_valid(_report_modal):
+		_close_report_modal()
+	else:
+		_open_report_modal()
+
+
+func _open_report_modal() -> void:
+	if _chat_overlay != null and is_instance_valid(_chat_overlay):
+		_close_chat_overlay()
+	if _friends_overlay != null and is_instance_valid(_friends_overlay):
+		_close_friends_overlay()
+	if _build_editor != null and is_instance_valid(_build_editor):
+		_close_build_mode()
+
+	Input.mouse_mode = Input.MOUSE_MODE_VISIBLE
+	_player.set_physics_process(false)
+	_player.set_process_unhandled_input(false)
+
+	_report_modal = ReportModal.new()
+	var wid: int = int(Session.world_id) if Session.world_id != null else 0
+	_report_modal.setup_report("world", wid, "Current World" if wid > 0 else "Play Session")
+	_report_modal.closed.connect(_close_report_modal)
+	_report_modal.report_submitted.connect(func(_type, _id):
+		pass
+	)
+	_report_modal.tree_exited.connect(func():
+		if _report_modal != null:
+			_close_report_modal()
+	)
+	add_child(_report_modal)
+
+
+func _close_report_modal() -> void:
+	if _report_modal != null and is_instance_valid(_report_modal):
+		var m := _report_modal
+		_report_modal = null
+		m.queue_free()
+	_player.set_physics_process(true)
+	_player.set_process_unhandled_input(true)
+	Input.mouse_mode = Input.MOUSE_MODE_CAPTURED
+
+
 func _toggle_chat_overlay() -> void:
 	if _chat_overlay != null and is_instance_valid(_chat_overlay):
 		_close_chat_overlay()