fix(alertmanager): keep auto repair moving on ai fallback

apps/api/tests/test_alertmanager_rule_bypass.py

@@ -1,6 +1,10 @@
+import asyncio
 from datetime import datetime
 
+import pytest
+
 from src.api.v1.webhooks import (
+    _analyze_alertmanager_with_timeout,
     _should_bypass_alertmanager_llm,
     _should_use_alertmanager_rule_first,
 )
@@ -111,6 +115,43 @@ def test_alertmanager_llm_inflight_lock_key_is_fingerprint_scoped():
     assert ALERTMANAGER_LLM_INFLIGHT_LOCK_TTL_SECONDS == 600
 
 
+@pytest.mark.asyncio
+async def test_alertmanager_analysis_timeout_returns_fallback(monkeypatch):
+    from src.api.v1 import webhooks as webhooks_module
+
+    class SlowOpenClaw:
+        async def analyze_alert(self, alert_context):
+            await asyncio.sleep(1)
+            return "unexpected"
+
+    monkeypatch.setattr(webhooks_module, "ALERTMANAGER_BACKGROUND_AI_TIMEOUT_SECONDS", 0.01)
+
+    result = await _analyze_alertmanager_with_timeout(
+        SlowOpenClaw(),
+        {"alertname": "AwoooPTimeoutCanary"},
+        alert_id="alert-timeout",
+        alertname="AwoooPTimeoutCanary",
+    )
+
+    assert result == (None, "fallback_timeout", "", None, "", 0, 0.0)
+
+
+@pytest.mark.asyncio
+async def test_alertmanager_analysis_error_returns_fallback():
+    class BrokenOpenClaw:
+        async def analyze_alert(self, alert_context):
+            raise RuntimeError("provider chain failed")
+
+    result = await _analyze_alertmanager_with_timeout(
+        BrokenOpenClaw(),
+        {"alertname": "AwoooPErrorCanary"},
+        alert_id="alert-error",
+        alertname="AwoooPErrorCanary",
+    )
+
+    assert result == (None, "fallback_error", "", None, "", 0, 0.0)
+
+
 def test_resolved_guard_stamp_without_timestamp_is_clean():
     assert _format_resolved_guard_stamp(None) == "✅ 此事件已解決"