fix(agent): classify gitea sustained load pressure

apps/api/src/services/ai_agent_autonomous_runtime_control.py

@@ -1515,6 +1515,21 @@ def _build_host_sustained_load_controlled_automation_readback() -> dict[str, Any
                 "destructive_prune",
             ],
         },
+        {
+            "class_id": "gitea_queue_or_hook_backlog",
+            "alertnames": ["HostLoadAverageSustainedHigh"],
+            "classifier": "host-sustained-load-controller.py:blocked_gitea_queue_or_hook_backlog_requires_playbook",
+            "controlled_action": "run sanitized evidence collector, then use Gitea queue/hook backlog playbook in check-mode",
+            "controlled_apply_allowed": False,
+            "post_apply_verifier": "host-sustained-load-evidence.py readback plus Gitea queue/load verifier",
+            "rollback": "source-specific rollback required before apply; no generic runner restore",
+            "forbidden_actions": [
+                "gitea_container_restart_without_playbook",
+                "legacy_runner_restore",
+                "generic_runner_label_restore",
+                "warn_only_pressure_gate",
+            ],
+        },
         {
             "class_id": "unknown_sustained_load",
             "alertnames": ["HostLoadAverageSustainedHigh"],