fix(xmpp_monitor): exclude key7(kimi) from auto-heal switch candidates

zhiwei must stay on ocg-key6 (deepseek-v4-flash) per user decision.
key7 is kimi — different model provider, incompatible model name.
If best_key returns key7, auto_heal logs skip_switch instead of switching.

xmpp_logger.py

@@ -26,6 +26,8 @@ RESTART_COOLDOWN_FILE = LOG_DIR / "last_restart.txt"
 RESTART_COOLDOWN_SEC = 180  # 3 min: don't trigger another restart within 3 min of last
 
 # Map AgentsMeeting key_id -> Hermes provider name
+# NOTE: key7 (kimi) is intentionally NOT in this map — different model provider.
+# zhiwei uses deepseek-v4-flash via OCG; auto_heal must never switch to kimi.
 KEY_TO_PROVIDER = {
     "key1": "ocg-new",
     "key2": "ocg-old",
@@ -442,7 +444,14 @@ def auto_heal():
             # 如果 best key 对应的 provider 跟当前不同 → 切换
             target_provider = KEY_TO_PROVIDER.get(bk["key_id"])
             current = current_provider()
-            if target_provider and target_provider != current:
+            if target_provider is None:
+                # best key is a non-OCG provider (e.g. key7=kimi) — never switch zhiwei there
+                actions.append({
+                    "action": "skip_switch",
+                    "reason": f"best key {bk['key_id']} is non-OCG (not in KEY_TO_PROVIDER), zhiwei must stay on deepseek",
+                    "best_key": bk["key_id"],
+                })
+            elif target_provider != current:
                 # 只有当 best key 自身至少 weekly ok 才切，否则切过去也白搭
                 if bk["weekly"]["status"] == "ok":
                     action = switch_key(bk["key_id"])