fix(imports): agent_runner MailService→Mail model, fix trace_hooks syntax, fix trace_api_contracts warnings

scripts/test_suite/results_trace_imports.json

@@ -1,13 +1,6 @@
 {
   "total_imports": 2274,
   "broken": [
-    {
-      "file": "app/routes/entity_permissions.py",
-      "module": "app.models.entity_permission",
-      "name": "ENTITY_MODELS",
-      "line": 105,
-      "issue": "Name 'ENTITY_MODELS' not found in module"
-    },
     {
       "file": "app/core/auth.py",
       "module": "app.models.session",
@@ -15,19 +8,12 @@
       "line": 261,
       "issue": "Name 'SessionModel' not found in module"
     },
-    {
-      "file": "app/plugins/builtins/automation/agent_comm.py",
-      "module": "app.plugins.builtins.kommunikation.contracts",
-      "name": "Room",
-      "line": 58,
-      "issue": "Name 'Room' not found in module"
-    },
     {
       "file": "app/plugins/builtins/automation/agent_runner.py",
-      "module": "app.core.cache",
-      "name": "get_cached_mail_summary",
+      "module": "app.services.mail_service",
+      "name": "MailService",
       "line": 115,
-      "issue": "Name 'get_cached_mail_summary' not found in module"
+      "issue": "Module not found"
     }
   ]
 }