Hide SIM label in WeCom; count completed rounds from closed groups.

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

backend/app/notify/wecom.py

@@ -55,11 +55,11 @@ def wecom_webhook_url() -> str:
         return ""
 
 
-def venue_label() -> str:
-    """模拟盘 / 实盘·OKX / 实盘·BINANCE。"""
+def venue_label() -> str | None:
+    """实盘时返回「实盘·交易所」；SIM 不展示盘口标签。"""
     s = get_settings()
     if s.is_sim:
-        return "模拟盘"
+        return None
     try:
         ex = load_runtime_settings().exchange
     except Exception:
@@ -67,13 +67,17 @@ def venue_label() -> str:
     ex_u = str(ex).strip().lower()
     if ex_u in ("binance", "bn"):
         return "实盘·币安"
+    if ex_u in ("gate", "gateio"):
+        return "实盘·Gate"
     return "实盘·OKX"
 
 
 def build_markdown(*, tag: str, title: str, lines: list[str] | None = None) -> str:
     body = "\n".join(f"> {ln}" if not ln.startswith(">") else ln for ln in (lines or []))
+    venue = venue_label()
+    head = f"## 【{venue}】{title}" if venue else f"## {title}"
     parts = [
-        f"## 【{venue_label()}】{title}",
+        head,
         f"> **标识**: `{tag}`",
         f"> **时间**: {time.strftime('%Y-%m-%d %H:%M:%S')}",
     ]
@@ -211,9 +215,13 @@ def notify_fault(*, title: str, detail: str, dedupe_key: str | None = None) -> N
 
 
 def notify_test() -> tuple[bool, str]:
+    venue = venue_label()
+    lines = ["企业微信通知已连通。"]
+    if venue:
+        lines.append(f"当前盘口标签: **{venue}**")
     content = build_markdown(
         tag=TAG_TEST,
         title="测试推送",
-        lines=["企业微信通知已连通。", f"当前盘口标签: **{venue_label()}**"],
+        lines=lines,
     )
     return _post_markdown_sync(content)