Resolve postponed annotations before validation and schema creation

great_ai/helper/get_function_type_hints.py

@@ -0,0 +1,7 @@
+import inspect
+from typing import Any, Callable, Dict, get_type_hints
+
+
+def get_function_type_hints(func: Callable) -> Dict[str, Any]:
+    """Resolve postponed annotations in the original function's namespace."""
+    return get_type_hints(inspect.unwrap(func), include_extras=True)