fix: add import button for OpenCode/OpenClaw empty state and remove auto-import on startup

Previously OpenCode and OpenClaw auto-imported providers from live config
on app startup, which could confuse users. Now they follow the same
pattern as Claude/Codex/Gemini: manual import via the empty state button.

src/components/providers/ProviderList.tsx

@@ -179,7 +179,17 @@ export function ProviderList({
   // Import current live config as default provider
   const queryClient = useQueryClient();
   const importMutation = useMutation({
-    mutationFn: () => providersApi.importDefault(appId),
+    mutationFn: async (): Promise<boolean> => {
+      if (appId === "opencode") {
+        const count = await providersApi.importOpenCodeFromLive();
+        return count > 0;
+      }
+      if (appId === "openclaw") {
+        const count = await providersApi.importOpenClawFromLive();
+        return count > 0;
+      }
+      return providersApi.importDefault(appId);
+    },
     onSuccess: (imported) => {
       if (imported) {
         queryClient.invalidateQueries({ queryKey: ["providers", appId] });
@@ -245,15 +255,11 @@ export function ProviderList({
     );
   }
 
-  // Only show import button for standard apps (not additive-mode apps like OpenCode/OpenClaw)
-  const showImportButton =
-    appId === "claude" || appId === "codex" || appId === "gemini";
-
   if (sortedProviders.length === 0) {
     return (
       <ProviderEmptyState
         onCreate={onCreate}
-        onImport={showImportButton ? () => importMutation.mutate() : undefined}
+        onImport={() => importMutation.mutate()}
       />
     );
   }

src/lib/api/providers.ts

@@ -110,6 +110,14 @@ export const providersApi = {
   async getOpenClawLiveProviderIds(): Promise<string[]> {
     return await invoke("get_openclaw_live_provider_ids");
   },
+
+  /**
+   * 从 OpenClaw live 配置导入供应商到数据库
+   * OpenClaw 特有功能：由于累加模式，用户可能已在 openclaw.json 中配置供应商
+   */
+  async importOpenClawFromLive(): Promise<number> {
+    return await invoke("import_openclaw_providers_from_live");
+  },
 };
 
 // ============================================================================