Fix slow CTP position sync after restart and link positions to 15m K-line.

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

install_trading.py

@@ -771,11 +771,17 @@ def install_trading(app, *, login_required, require_nav, get_db, get_setting, se
                 "monitor_id": mon["id"] if mon else None,
             })
         row_key = _canonical_position_key(sym, direction)
+        ctp_st = ctp_status(mode)
+        sync_pending = (
+            mon is not None
+            and ctp is None
+            and bool(ctp_st.get("connected"))
+        )
         return {
             "key": row_key,
             "source": "ctp" if ctp else "local",
             "source_label": source_label,
-            "sync_pending": ctp is None and mon is not None,
+            "sync_pending": sync_pending,
             "monitor_id": mon["id"] if mon else None,
             "symbol_code": sym,
             **_symbol_display_fields(sym),
@@ -1024,7 +1030,7 @@ def install_trading(app, *, login_required, require_nav, get_db, get_setting, se
         capital = _capital(conn)
         if not fast and ctp_st.get("connected"):
             _reconcile_pending(conn, mode, capital=capital)
-        if not fast:
+        if ctp_st.get("connected"):
             _ensure_monitors_from_ctp(conn, mode)
         rows = _build_trading_live_rows(conn, fast=fast)
         pending_orders = _build_pending_orders(conn, mode)
@@ -2262,8 +2268,19 @@ def install_trading(app, *, login_required, require_nav, get_db, get_setting, se
 
     def _position_worker_refresh() -> dict:
         _pos_refresh_tick["n"] += 1
-        # 每秒轻量刷新；每 5 秒做一次 CTP 持仓/挂单对账，避免频繁 query 导致 vnctptd 崩溃
-        return _refresh_trading_live_snapshot(fast=(_pos_refresh_tick["n"] % 5 != 0))
+        mode = get_trading_mode(get_setting)
+        connected = bool(ctp_status(mode).get("connected"))
+        # 已连接时每 2 秒完整对账；未连接时每 5 秒轻量刷新（禁止 query_position）
+        if connected:
+            use_fast = _pos_refresh_tick["n"] % 2 != 0
+        else:
+            use_fast = _pos_refresh_tick["n"] % 5 != 0
+        payload = _refresh_trading_live_snapshot(fast=use_fast)
+        if connected and use_fast and any(
+            r.get("sync_pending") for r in (payload.get("rows") or [])
+        ):
+            payload = _refresh_trading_live_snapshot(fast=False)
+        return payload
 
     start_position_worker(
         refresh_fn=_position_worker_refresh,