fix(egress): validate proposed full config

tests/unit/test_egress_apply.py

@@ -54,6 +54,15 @@ class TestValidateRoutesContent(unittest.TestCase):
                 '    auth_scheme: "Bearer"\n'
             )
 
+    def test_rejects_log_full(self):
+        with self.assertRaises(EgressApplyError) as cm:
+            applicator.validate_routes_content(
+                'log: 2\n'
+                'routes:\n'
+                '  - host: "x.example"\n'
+            )
+        self.assertIn("must not change egress logging", str(cm.exception))
+
 
 class TestApplyRoutesChange(unittest.TestCase):
     def setUp(self):

tests/unit/test_supervise_server.py

@@ -67,6 +67,15 @@ class TestValidation(unittest.TestCase):
         with self.assertRaises(_RpcError):
             validate_proposed_file(_sv.TOOL_EGRESS_BLOCK, "routes: nope\n")
 
+    def test_egress_routes_yaml_rejects_log_full(self):
+        with self.assertRaises(_RpcError) as cm:
+            validate_proposed_file(
+                _sv.TOOL_EGRESS_ALLOW,
+                "log: 2\nroutes:\n  - host: example.com\n",
+            )
+        self.assertEqual(ERR_INVALID_PARAMS, cm.exception.code)
+        self.assertIn("must not change egress logging", cm.exception.message)
+
 
 # --- JSON-RPC parsing ------------------------------------------------------