Fix error generating ifcpatch recipes docs for Bonsai tooltips

Mentioned in https://github.com/IfcOpenShell/IfcOpenShell/issues/7667#issuecomment-4076645173

Traceback:
```
Traceback (most recent call last):
  File "\bonsai\bim\module\patch\prop.py", line 55, in get_ifcpatch_recipes
    docs = ifcpatch.extract_docs(f, "Patcher", "__init__", ("src", "file", "logger", "args"))
  File "\ifcpatch\__init__.py", line 168, in extract_docs
    spec.loader.exec_module(submodule)
    ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
  File "<frozen importlib._bootstrap_external>", line 1027, in exec_module
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "\ifcpatch/recipes/FixRevit2025TINs.py", line 31, in <module>
    class Patcher:
    ...<509 lines>...
            return co / self.unit_scale
  File "\ifcpatch/recipes/FixRevit2025TINs.py", line 168, in Patcher
    def create_edges(self, obj: bpy.types.Object) -> None:
                                ^^^
NameError: name 'bpy' is not defined
File "\bonsai\bim\module\patch\prop.py", line 43, in get_ifcpatch_recipes
```

src/ifcpatch/ifcpatch/recipes/FixRevit2025TINs.py

@@ -16,6 +16,7 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with IfcPatch.  If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import annotations
 
 import logging
 from typing import Optional, TYPE_CHECKING