条件单列表改为中控后台并行缓存并以 SSE 推浏览器，下发仍走中控到实例。

Co-authored-by: Cursor <cursoragent@cursor.com>

app.py

@@ -43,13 +43,13 @@ from lib.bridge_client_lib import (
     fetch_backup_file,
     fetch_backup_list,
     fetch_client_version,
-    fetch_cond_orders,
     post_client_update,
     post_close_full,
     post_cond_cancel,
     post_cond_exit,
     pull_all_enabled,
 )
+from lib.cond_orders_cache_lib import cond_orders_store
 from lib.cash_sample_lib import record_cash_samples_from_overview
 from lib.db_lib import db_path as hub_db_path, init_db
 from lib.env_lib import apply_env_updates, env_get
@@ -560,8 +560,13 @@ def start_stats_cache() -> None:
     stats_store.start()
 
 
+def start_cond_orders_cache() -> None:
+    cond_orders_store.start()
+
+
 start_overview_cache()
 start_stats_cache()
+start_cond_orders_cache()
 
 try:
     start_hub_backup_scheduler(
@@ -690,49 +695,66 @@ def cond_orders_page():
 @app.route("/api/cond_orders/candidates")
 @login_required
 def api_cond_order_candidates():
-    """可选客户端:在线且无持仓、未被条件单锁定."""
-    rows = pull_all_enabled()
-    out = []
-    for row in rows:
-        snap = row.get("snapshot") if isinstance(row.get("snapshot"), dict) else {}
-        brief = snap.get("positions_brief") or snap.get("positions") or []
-        has_pos = isinstance(brief, list) and len(brief) > 0
-        locked = bool(snap.get("cond_order_locked"))
-        selectable = bool(row.get("online")) and not has_pos and not locked
-        inst = snap.get("instance") if isinstance(snap.get("instance"), dict) else {}
-        mode = str(inst.get("mode") or "").strip().lower()
-        if mode not in ("sim", "live"):
-            mode = ""
-        out.append(
-            {
-                "id": row.get("id"),
-                "name": row.get("name"),
-                "online": bool(row.get("online")),
-                "has_position": has_pos,
-                "cond_order_locked": locked,
-                "selectable": selectable,
-                "mode": mode,
-                "error": row.get("error") or "",
-            }
-        )
-    return jsonify({"ok": True, "instances": out})
+    """可选客户端:读热缓存(总览快照推导),不现场拉实例."""
+    force = (request.args.get("force") or "").strip().lower() in ("1", "true", "yes")
+    if force:
+        cond_orders_store.request_refresh()
+        overview_store.request_refresh()
+    snap = cond_orders_store.snapshot_dict()
+    return jsonify(
+        {
+            "ok": True,
+            "instances": snap.get("candidates") or [],
+            "cond_version": snap.get("cond_version"),
+            "updated_at": snap.get("updated_at"),
+            "refreshing": snap.get("refreshing"),
+            "from_cache": True,
+        }
+    )
 
 
 @app.route("/api/cond_orders", methods=["GET"])
 @login_required
 def api_cond_orders_list():
-    instances = list_instances(enabled_only=True)
-    all_orders = []
-    for inst in instances:
-        data = fetch_cond_orders(inst)
-        for o in data.get("orders") or []:
-            if not isinstance(o, dict):
-                continue
-            item = dict(o)
-            item["instance_id"] = inst.get("id")
-            item["instance_name"] = inst.get("name")
-            all_orders.append(item)
-    return jsonify({"ok": True, "orders": all_orders})
+    """条件单列表只读热缓存;后台常驻并行从实例拉取."""
+    force = (request.args.get("force") or "").strip().lower() in ("1", "true", "yes")
+    if force:
+        cond_orders_store.request_refresh()
+    snap = cond_orders_store.snapshot_dict()
+    return jsonify(
+        {
+            "ok": True,
+            "orders": snap.get("orders") or [],
+            "cond_version": snap.get("cond_version"),
+            "updated_at": snap.get("updated_at"),
+            "refreshing": snap.get("refreshing"),
+            "from_cache": True,
+            "poll_interval_sec": snap.get("poll_interval_sec"),
+            "error": snap.get("error"),
+        }
+    )
+
+
+@app.route("/api/cond_orders/refresh", methods=["POST"])
+@login_required
+def api_cond_orders_refresh():
+    cond_orders_store.request_refresh()
+    overview_store.request_refresh()
+    return jsonify({"ok": True, "msg": "已触发条件单后台刷新"})
+
+
+@app.route("/api/cond_orders/stream")
+@login_required
+def api_cond_orders_stream():
+    return Response(
+        stream_with_context(cond_orders_store.iter_sse()),
+        mimetype="text/event-stream",
+        headers={
+            "Cache-Control": "no-cache",
+            "Connection": "keep-alive",
+            "X-Accel-Buffering": "no",
+        },
+    )
 
 
 @app.route("/api/cond_orders", methods=["POST"])
@@ -749,8 +771,9 @@ def api_cond_orders_create():
     if not instance_ids:
         return jsonify({"ok": False, "msg": "请选择客户端"})
 
-    # 再次按快照过滤有仓/锁定
-    rows = {r.get("id"): r for r in pull_all_enabled()}
+    # 再次按热缓存快照过滤有仓/锁定(下发本身仍 POST 到实例)
+    ov = overview_store.snapshot_dict()
+    rows = {r.get("id"): r for r in (ov.get("instances") or [])}
     allowed = []
     rejected = []
     for iid in instance_ids:
@@ -792,6 +815,9 @@ def api_cond_orders_create():
     }
     results = dispatch_cond_order_to_ids(allowed, payload)
     ok_n = sum(1 for r in results if r.get("ok"))
+    if ok_n > 0:
+        cond_orders_store.request_refresh()
+        overview_store.request_refresh()
     return jsonify(
         {
             "ok": ok_n > 0,
@@ -813,7 +839,11 @@ def api_cond_orders_cancel(hub_order_id: str):
     inst = get_instance(int(iid))
     if not inst:
         return jsonify({"ok": False, "msg": "实例不存在"}), 404
-    return jsonify(post_cond_cancel(inst, hub_order_id))
+    result = post_cond_cancel(inst, hub_order_id)
+    if isinstance(result, dict) and result.get("ok"):
+        cond_orders_store.request_refresh()
+        overview_store.request_refresh()
+    return jsonify(result)
 
 
 @app.route("/api/cond_orders/<hub_order_id>/exit", methods=["POST"])
@@ -831,7 +861,11 @@ def api_cond_orders_exit(hub_order_id: str):
         "profit_exit_enabled": data.get("profit_exit_enabled"),
         "profit_exit_mult": data.get("profit_exit_mult"),
     }
-    return jsonify(post_cond_exit(inst, hub_order_id, payload))
+    result = post_cond_exit(inst, hub_order_id, payload)
+    if isinstance(result, dict) and result.get("ok"):
+        cond_orders_store.request_refresh()
+        overview_store.request_refresh()
+    return jsonify(result)
 
 
 @app.route("/manifest.webmanifest")