Revert "fix(options): speed up chain refresh with fast path and non-blocking UI"

This reverts commit 6fad68f7b1.

lib/options/options_quote_live_lib.py

@@ -158,58 +158,7 @@ class OptionsQuoteLive:
         args = [{"channel": "tickers", "instId": iid} for iid in merged]
         for iid in sorted(index_insts):
             args.append({"channel": "index-tickers", "instId": iid})
-        # 订阅可能分片 sleep,不能堵 Flask 请求线程
-        threading.Thread(
-            target=self._ws.set_subscriptions,
-            args=(args,),
-            name="okx-options-quote-sub",
-            daemon=True,
-        ).start()
-
-    def as_okx_tickers(self, underlying: str | None = None) -> dict[str, dict[str, Any]]:
-        """转成 build_option_chain 可用的 OKX ticker 字段."""
-        u = (underlying or "").upper()
-        out: dict[str, dict[str, Any]] = {}
-        with self._lock:
-            for inst_id, q in self._tickers.items():
-                if u and str(q.get("underlying") or "").upper() not in ("", u):
-                    continue
-                row: dict[str, Any] = {"instId": inst_id}
-                if q.get("ask") is not None and not q.get("ask_estimated"):
-                    row["askPx"] = q.get("ask")
-                    row["askSz"] = q.get("ask_sz")
-                if q.get("bid") is not None:
-                    row["bidPx"] = q.get("bid")
-                    row["bidSz"] = q.get("bid_sz")
-                if q.get("mark_px") is not None:
-                    row["markPx"] = q.get("mark_px")
-                out[inst_id] = row
-        return out
-
-    def index_px_for(self, underlying: str) -> float | None:
-        u = (underlying or "").upper()
-        with self._lock:
-            return self._index_by_uly.get(u)
-
-    def is_ws_fresh(self, *, max_age_sec: float = 15.0) -> bool:
-        if not self._ws.connected:
-            return False
-        last = float(self._ws.last_msg_at or 0)
-        return last > 0 and (time.time() - last) <= max_age_sec
-
-    def schedule_seed_from_chain(
-        self,
-        chain: dict[str, Any],
-        *,
-        exp_time: str | int | None = None,
-        watcher_id: str | None = None,
-    ) -> None:
-        threading.Thread(
-            target=self.seed_from_chain,
-            kwargs={"chain": chain, "exp_time": exp_time, "watcher_id": watcher_id},
-            name="options-quote-seed",
-            daemon=True,
-        ).start()
+        self._ws.set_subscriptions(args)
 
     def seed_from_chain(
         self,