docs(frozen_dataclass): Improve method injection comments for clarity

Author: tony

src/libtmux/_internal/frozen_dataclass.py

@@ -75,9 +75,9 @@ def __delattr__(self: t.Any, name: str) -> None:
         # Allow the deletion
         object.__delattr__(self, name)
 
-    # F. Inject into the class using setattr to avoid explicit mypy type ignores
-    setattr(cls, "__init__", __init__)
-    setattr(cls, "__setattr__", __setattr__)
-    setattr(cls, "__delattr__", __delattr__)
+    # F. Inject methods into the class (using setattr to satisfy mypy)
+    setattr(cls, "__init__", __init__)        # Sets _frozen flag post-initialization
+    setattr(cls, "__setattr__", __setattr__)  # Blocks attribute modification post-init 
+    setattr(cls, "__delattr__", __delattr__)  # Blocks attribute deletion post-init
 
     return cls