fix(supervise): remove queue directory from db-backed flow

tests/unit/test_compose.py

@@ -107,7 +107,6 @@ def _egress_plan(
 def _supervise_plan() -> SupervisePlan:
     return SupervisePlan(
         slug=SLUG,
-        queue_dir=STATE / "supervise" / "queue",
         db_path=STATE / "bot-bottle.db",
         internal_network=f"bot-bottle-net-{SLUG}",
     )
@@ -394,7 +393,6 @@ class TestSidecarBundleShape(unittest.TestCase):
         env_strings = sc["environment"]
         self.assertIn(f"SUPERVISE_BOTTLE_SLUG={SLUG}", env_strings)
         self.assertIn("SUPERVISE_DB_PATH=/run/supervise/bot-bottle.db", env_strings)
-        self.assertTrue(any(e.startswith("SUPERVISE_QUEUE_DIR=") for e in env_strings))
         self.assertTrue(any(e.startswith("SUPERVISE_PORT=") for e in env_strings))
 
     def test_volumes_always_includes_egress_ca(self):
@@ -411,8 +409,6 @@ class TestSidecarBundleShape(unittest.TestCase):
         self.assertIn("/git-gate-entrypoint.sh", targets)
         self.assertIn("/git-gate/creds/upstream-known_hosts", targets)
         self.assertIn("/run/supervise/bot-bottle.db", targets)
-        self.assertTrue(any("supervise/queue" in t or t.startswith("/run/supervise")
-                            for t in targets))
 
     def test_extra_hosts_omitted_for_git_upstreams(self):
         sc = self._render(with_git=True)["services"]["sidecars"]