feat: XMPP observability — logger, monitor endpoints, clean dead xiaoguo refs

server.py

@@ -1272,6 +1272,49 @@ def api_module_spec(module):
     return jsonify({"error": f"Module '{module}' not found"}), 404
 
 
+# ── XMPP 通信监控 API ─────────────────────────────────
+
+@app.route("/api/xmpp/messages")
+def api_xmpp_messages():
+    """查询 XMPP 消息日志"""
+    since = request.args.get("since", "")
+    agent = request.args.get("agent", "")
+    status = request.args.get("status", "")
+    limit = int(request.args.get("limit", 50))
+    try:
+        from xmpp_logger import query
+        msgs = query(since=since or None, agent=agent or None, status=status or None, limit=limit)
+        return jsonify({"messages": msgs, "total": len(msgs)})
+    except ImportError:
+        return jsonify({"messages": [], "total": 0})
+
+
+@app.route("/api/xmpp/health")
+def api_xmpp_health():
+    """XMPP 通道健康检查"""
+    try:
+        from xmpp_logger import health as xmpp_health
+        h = xmpp_health()
+        # 补充 ejabberd Docker 状态
+        import subprocess
+        r = subprocess.run(["docker", "ps", "--filter", "name=ejabberd", "--format", "{{.Status}}"],
+                          capture_output=True, timeout=5, text=True)
+        h["ejabberd"] = r.stdout.strip() if r.returncode == 0 and r.stdout.strip() else "not_found"
+        return jsonify(h)
+    except ImportError:
+        return jsonify({"status": "no_logger", "last_message_age_sec": -1, "error_rate_1h": 0, "ejabberd": "unknown"})
+
+
+@app.route("/api/xmpp/stats")
+def api_xmpp_stats():
+    """XMPP 消息统计"""
+    try:
+        from xmpp_logger import stats as xmpp_stats
+        return jsonify(xmpp_stats())
+    except ImportError:
+        return jsonify({"today": {"sent": 0, "failed": 0, "latency_avg": 0}, "week": {"sent": 0, "failed": 0}})
+
+
 # 注册提示词管理路由
 register_routes(app)