Fix research xp generation

tests/test_runner.gd

@@ -1,18 +1,18 @@
-extends Node
+extends SceneTree
 
 var test_scripts: Array[String] = []
 var test_index: int = 0
 var total_passed: int = 0
 var total_failed: int = 0
 
-func _ready():
+func _init():
     print("\n=== GODOT TEST RUNNER ===\n")
     _discover_tests()
     
     if test_scripts.is_empty():
         print("[ERROR] No test scripts found in res://tests/")
         print("[RESULT] FAIL")
-        get_tree().quit(1)
+        quit(1)
         return
     
     print("Found %d test(s): %s\n" % [test_scripts.size(), str(test_scripts)])
@@ -25,10 +25,10 @@ func _ready():
     
     if total_failed == 0:
         print("[OVERALL_RESULT] PASS")
-        get_tree().quit(0)
+        quit(0)
     else:
         print("[OVERALL_RESULT] FAIL")
-        get_tree().quit(1)
+        quit(1)
 
 func _discover_tests() -> void:
     var dir = DirAccess.open("res://tests")
@@ -53,11 +53,26 @@ func _run_next_test() -> void:
     
     # Load and run test
     var test_instance = load(test_script).new()
-    add_child(test_instance)
-    await test_instance.run()
+    get_root().add_child(test_instance)
     
-    total_passed += test_instance.get_passed()
-    total_failed += test_instance.get_failed()
+    # Check if test has run() method (new pattern) or uses _ready() (old pattern)
+    if test_instance.has_method("run"):
+        await test_instance.run()
+        # Clean up test instance
+        test_instance.queue_free()
+    else:
+        # For old pattern, wait a bit for _ready() to complete
+        await create_timer(0.2).timeout
+        # Clean up test instance
+        test_instance.queue_free()
+    
+    # Get results if available
+    if test_instance.has_method("get_passed"):
+        total_passed += test_instance.get_passed()
+        total_failed += test_instance.get_failed()
+    
+    # Wait for cleanup
+    await create_timer(0.1).timeout
     
     print("")
     test_index += 1