feat(democracy): watch disk, Docker and caches and act before the disk runs out

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

tests/test_autotune.py

@@ -116,7 +116,7 @@ class TestSettingsRegistration(unittest.TestCase):
             encoding="utf-8",
         )
         data = self._patch()
-        self.assertEqual(len(data["hooks"]["UserPromptSubmit"]), 3)
+        self.assertEqual(len(data["hooks"]["UserPromptSubmit"]), 4)
 
 
 if __name__ == "__main__":