fix: replace pytfm workspace dependency with git source for CI compatibility

Remove the synthetic workspace hack from CI pipeline (fake pyproject.toml
+ git clone was fragile and complex). pytfm is now a clean git dependency
in [tool.uv.sources], so uv resolves it automatically.

Local development still works via: uv add --editable ../pytfm

pyproject.toml

@@ -61,7 +61,7 @@ types = [
 blog = "app.main:main"
 
 [tool.uv.sources]
-pytfm = { workspace = true }
+pytfm = { git = "https://git.pyaqa.ru/pi3c/pytfm.git" }
 
 [tool.pytest.ini_options]
 asyncio_mode = "auto"