refactor: extract character effect helpers

backend/core/basic/character/effect_apply.py

@@ -0,0 +1,17 @@
+from typing import Any
+
+
+def uppercase_attrs(source: Any) -> dict[str, Any]:
+    return {key: value for key, value in source.__dict__.items() if key and key[0].isupper()}
+
+
+def apply_uppercase_attrs(character: Any, source: Any) -> None:
+    character.SetStatus(**uppercase_attrs(source))
+
+
+def execute_effect(effects: Any, key: str, *args: Any) -> bool:
+    fun = effects.execture(key)
+    if fun is None:
+        return False
+    fun(*args)
+    return True