feat(openclaw): add additive mode frontend support

- Add getOpenClawLiveProviderIds() API for querying live config
- Update ProviderList to query OpenClaw live IDs
- Rename isOpenCodeMode to isAdditiveMode (covers OpenCode + OpenClaw)
- Update ProviderCard shouldAutoQuery and isActiveProvider logic
- Update App.tsx onRemoveFromConfig and invalidateQueries for OpenClaw

src/lib/api/providers.ts

@@ -98,6 +98,14 @@ export const providersApi = {
   async getOpenCodeLiveProviderIds(): Promise<string[]> {
     return await invoke("get_opencode_live_provider_ids");
   },
+
+  /**
+   * 获取 OpenClaw live 配置中的供应商 ID 列表
+   * 用于前端判断供应商是否已添加到 openclaw.json
+   */
+  async getOpenClawLiveProviderIds(): Promise<string[]> {
+    return await invoke("get_openclaw_live_provider_ids");
+  },
 };
 
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