stats: /api/stats 增加 probe 可路由探测缓存信息与 denied_detail(带剩余TTL), 供 CF 集中面板展示; denied 原字段形状不变(兼容自身面板)

server.py

@@ -201,6 +201,8 @@ class TokenPool:
         self.surplus_dropped = 0
         self.expired_dropped = 0
         self.known_supported: set[str] = set()  # 后台探测到的可路由集合
+        self.probe_ts: float | None = None      # 最近一次可路由探测完成时刻(墙钟, 缓存命中时取文件ts)
+        self.probe_from_cache = False           # 本次探测结果是否直接来自磁盘缓存
         self.routable_seen: set[str] = set()    # 实测跑通过的模型
         self.denied: dict[str, float] = {}      # 上游403否定缓存 model->ts
         self.requests = collections.deque(maxlen=50)
@@ -607,6 +609,8 @@ class TokenPool:
                 data = json.loads(PROBE_CACHE.read_text(encoding="utf-8"))
                 if time.time() - data.get("ts", 0) < cfg.PROBE_CACHE_TTL:
                     self.known_supported.update(data.get("models", []))
+                    self.probe_ts = data.get("ts") or time.time()
+                    self.probe_from_cache = True
                     log(f"[probe] 可路由集合用缓存 {len(self.known_supported)} 个")
                     return
         except Exception:
@@ -632,6 +636,8 @@ class TokenPool:
             async with httpx.AsyncClient() as c:
                 await asyncio.gather(*[probe(i) for i in cands])
             log(f"[probe] 匿名可路由候选 {len(self.known_supported)} 个")
+            self.probe_ts = time.time()
+            self.probe_from_cache = False
             try:
                 PROBE_CACHE.write_text(json.dumps(
                     {"ts": time.time(),
@@ -703,6 +709,16 @@ class TokenPool:
             "workers_max": self.max_worker_pages,
             "routable": self.routable(),
             "denied": sorted(m for m in self.denied if self.is_denied(m)),
+            "denied_detail": [                    # 带剩余 TTL, 供集中面板展示
+                {"model": m, "remain_s": max(0, int(self.denied_ttl - (time.time() - ts)))}
+                for m, ts in sorted(self.denied.items(), key=lambda kv: -kv[1])
+                if self.is_denied(m)
+            ],
+            "probe": {                            # 可路由探测缓存状态
+                "age_s": (int(time.time() - self.probe_ts) if self.probe_ts else None),
+                "models": len(self.known_supported),
+                "from_cache": self.probe_from_cache,
+            },
             "config": {
                 "shelf_size": self.shelf_size,
                 "token_max_age": self.token_max_age,