style(tools): format the sandbox interpreter and skill tool changes with ruff

src/langbot/pkg/provider/tools/loaders/native.py

@@ -757,10 +757,7 @@ class NativeToolLoader(loader.ToolLoader):
         # Sandbox images built from a host rootfs may only ship `python3`, and a
         # read-only /usr prevents creating a `python` shim inside the jail, so
         # resolve the interpreter instead of assuming its name.
-        command = (
-            'PYTHON_BIN=$(command -v python3 || command -v python); '
-            f"\"$PYTHON_BIN\" - <<'PY'\n{script}\nPY"
-        )
+        command = f'PYTHON_BIN=$(command -v python3 || command -v python); "$PYTHON_BIN" - <<\'PY\'\n{script}\nPY'
         result = await self.ap.box_service.execute_tool(
             {
                 'command': command,