fix(key-monitor): repair trigger entry bugs in four exchange apps

Restore missing check_fib_key_monitors, fix gate preview and OKX add_key,
and unify trigger execution error handling to avoid duplicate history writes.

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

crypto_monitor_gate/app.py

@@ -5391,18 +5391,30 @@ def _execute_trigger_entry_cross(conn, row):
     conn.execute("DELETE FROM key_monitors WHERE id=?", (kid,))
     conn.commit()
 
-    ok, err, det = _market_open_for_trigger_entry(
-        conn,
-        symbol,
-        direction,
-        ex_sym,
-        entry,
-        sl,
-        tp,
-        breakeven_enabled=be_en,
-        time_close_enabled=tc_en,
-        time_close_hours=tc_h,
-    )
+    try:
+        ok, err, det = _market_open_for_trigger_entry(
+            conn,
+            symbol,
+            direction,
+            ex_sym,
+            entry,
+            sl,
+            tp,
+            breakeven_enabled=be_en,
+            time_close_enabled=tc_en,
+            time_close_hours=tc_h,
+        )
+    except Exception as e:
+        fail_msg = friendly_exchange_error(e)
+        send_wechat_msg(
+            f"# ❌ {symbol} 触价开仓异常\n"
+            f"**账户：{_wechat_account_label()}**\n"
+            f"- 计划入场：{format_price_for_symbol(symbol, entry)}\n"
+            f"- 原因：{fail_msg}\n"
+        )
+        insert_key_monitor_history(conn, row, 0, fail_msg, TRIGGER_ENTRY_CLOSE_EXCHANGE_FAILED)
+        return False, fail_msg
+
     if ok and det:
         rr_txt = format_wechat_scalar_2dp(det.get("planned_rr_fill")) if det.get("planned_rr_fill") is not None else "-"
         msg = (
@@ -5468,17 +5480,7 @@ def check_trigger_entry_key_monitors():
             _finalize_key_monitor_one_shot(conn, r, msg, TRIGGER_ENTRY_CLOSE_TP_INVALIDATE)
             continue
         if trigger_entry_reached(direction, mark, entry):
-            try:
-                _execute_trigger_entry_cross(conn, r)
-            except Exception as e:
-                fail_msg = friendly_exchange_error(e)
-                try:
-                    insert_key_monitor_history(conn, r, 0, fail_msg, TRIGGER_ENTRY_CLOSE_EXCHANGE_FAILED)
-                except Exception:
-                    pass
-                send_wechat_msg(
-                    f"# ❌ {symbol} 触价开仓异常\n**账户：{_wechat_account_label()}**\n- {fail_msg}\n"
-                )
+            _execute_trigger_entry_cross(conn, r)
     conn.commit()
     conn.close()
 
@@ -6989,6 +6991,7 @@ def api_price_snapshot():
         gate_metrics = ""
         fib_gate_ok = True
         fb_gate_ok = True
+        te_gate_ok = True
         if is_fib:
             direction = (r["direction"] or "long").lower()
             inval = fib_invalidate_by_mark(direction, price, r["upper"], r["lower"])
@@ -7027,7 +7030,7 @@ def api_price_snapshot():
             )
             gate_summary = prev.get("summary") or "-"
             gate_metrics = prev.get("metrics") or ""
-            fib_gate_ok = bool(prev.get("gate_ok"))
+            te_gate_ok = bool(prev.get("gate_ok"))
         elif (r["monitor_type"] or "").strip() in KEY_MONITOR_RS_TYPES:
             try:
                 prev = _key_rs_gate_preview(r["symbol"], r["upper"], r["lower"])
@@ -7087,6 +7090,7 @@ def api_price_snapshot():
             "gate_ok": (
                 fib_gate_ok if is_fib
                 else fb_gate_ok if is_fb
+                else te_gate_ok if is_te
                 else bool(gate and gate.get("ok"))
             ),
             "gate_metrics": gate_metrics,