Fix type errors in tests and plugins

- Add type: ignore for monkey-patching Database.__init__ in conftest
- Fix CLI test to pass string "2" instead of integer to Click invoke
- Add type: ignore for optional sqlean import
- Fix add_geometry_column test to use "XY" instead of integer 2
- Add type: ignore for click.Context as context manager
- Add type: ignore for enable_fts test that intentionally omits argument
- Add type: ignore for sys._called_from_test dynamic attribute
- Fix rows_from_file test type error for intentional wrong argument
- Handle None from pm.get_hookcallers in plugins.py

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

tests/test_cli_memory.py

@@ -331,7 +331,7 @@ def test_memory_return_db(tmpdir):
     with open(path, "w") as f:
         f.write("id,name\n1,Cleo")
 
-    with click.Context(cli) as ctx:
+    with click.Context(cli) as ctx:  # type: ignore[attr-defined]
         db = ctx.invoke(cli.commands["memory"], paths=(path,), return_db=True)
 
     assert db.table_names() == ["dogs"]