Retire ZenMux subscription and keep BYOK as terminal fallback

servers/tools-pve/litellm/models.yaml

@@ -1,4 +1,5 @@
 # 除 Google 自带 latest 别名外，本项目映射不会自行追踪上游发布。
+zenmux_subscription_enabled: false
 zenmux:
   claude-sonnet-latest: anthropic/claude-sonnet-5.5
   claude-opus-latest: anthropic/claude-opus-5.5
@@ -10,7 +11,7 @@ openrouter:
   glm-flash-latest: z-ai/glm-5.3-flash
   kimi-latest: moonshotai/kimi-k3
   mimo-flash-latest: xiaomi/mimo-v2.6-flash
-# These existing public aliases are subscription-first, not load-balanced.
+# OpenRouter first; ZenMux BYOK is the final same-model fallback.
 zenmux_open_models:
   deepseek-flash-latest: deepseek/deepseek-v4.1-flash
   deepseek-pro-latest: deepseek/deepseek-v4-pro