feat(omo): integrate Oh My OpenCode profile management (#972)

* feat(omo): integrate Oh My OpenCode profile management into Provider system

Adds full-stack OMO support: backend config read/write/import, OMO-specific
provider CRUD with exclusive switching, frontend profile editor with
agent/category/model configuration, global config management, and i18n support.

* feat(omo): add model/variant dropdowns from enabled providers

Replace model text inputs with Select dropdowns sourced from enabled
OpenCode providers, add thinking-level variant selection, and prevent
auto-enabling newly added OMO providers.

* fix(omo): use standard provider action styles for OMO switch button

* fix(omo): replace hardcoded isZh strings with proper i18n t() calls

src/components/providers/AddProviderDialog.tsx

@@ -17,7 +17,6 @@ import { UniversalProviderPanel } from "@/components/universal";
 import { providerPresets } from "@/config/claudeProviderPresets";
 import { codexProviderPresets } from "@/config/codexProviderPresets";
 import { geminiProviderPresets } from "@/config/geminiProviderPresets";
-// Note: opencodeProviderPresets is loaded via ProviderForm, not needed here
 import type { UniversalProviderPreset } from "@/config/universalProviderPresets";
 
 interface AddProviderDialogProps {
@@ -36,7 +35,6 @@ export function AddProviderDialog({
   onSubmit,
 }: AddProviderDialogProps) {
   const { t } = useTranslation();
-  // OpenCode doesn't support universal providers
   const showUniversalTab = appId !== "opencode";
   const [activeTab, setActiveTab] = useState<"app-specific" | "universal">(
     "app-specific",
@@ -45,7 +43,6 @@ export function AddProviderDialog({
   const [selectedUniversalPreset, setSelectedUniversalPreset] =
     useState<UniversalProviderPreset | null>(null);
 
-  // Handle universal provider save
   const handleUniversalProviderSave = useCallback(
     async (provider: UniversalProvider) => {
       try {
@@ -73,7 +70,6 @@ export function AddProviderDialog({
     [t, onOpenChange],
   );
 
-  // Close universal form and return to main dialog
   const handleUniversalFormClose = useCallback(() => {
     setUniversalFormOpen(false);
     setSelectedUniversalPreset(null);
@@ -86,7 +82,6 @@ export function AddProviderDialog({
         unknown
       >;
 
-      // 构造基础提交数据
       const providerData: Omit<Provider, "id"> & { providerKey?: string } = {
         name: values.name.trim(),
         notes: values.notes?.trim() || undefined,
@@ -98,7 +93,6 @@ export function AddProviderDialog({
         ...(values.meta ? { meta: values.meta } : {}),
       };
 
-      // OpenCode: pass providerKey for ID generation
       if (appId === "opencode" && values.providerKey) {
         providerData.providerKey = values.providerKey;
       }
@@ -107,8 +101,7 @@ export function AddProviderDialog({
         providerData.meta?.custom_endpoints &&
         Object.keys(providerData.meta.custom_endpoints).length > 0;
 
-      if (!hasCustomEndpoints) {
-        // 收集端点候选（仅在缺少自定义端点时兜底）
+      if (!hasCustomEndpoints && values.presetCategory !== "omo") {
         const urlSet = new Set<string>();
 
         const addUrl = (rawUrl?: string) => {
@@ -163,7 +156,6 @@ export function AddProviderDialog({
               }
             }
           }
-          // Note: OpenCode doesn't use endpointCandidates - it handles endpoints internally
         }
 
         if (appId === "claude") {
@@ -187,7 +179,6 @@ export function AddProviderDialog({
             addUrl(env.GOOGLE_GEMINI_BASE_URL);
           }
         } else if (appId === "opencode") {
-          // OpenCode uses options.baseURL
           const options = parsedConfig.options as
             | Record<string, any>
             | undefined;
@@ -221,7 +212,6 @@ export function AddProviderDialog({
     [appId, onSubmit, onOpenChange],
   );
 
-  // 动态 footer：根据当前 Tab 显示不同按钮
   const footer =
     !showUniversalTab || activeTab === "app-specific" ? (
       <>
@@ -296,7 +286,6 @@ export function AddProviderDialog({
           </TabsContent>
         </Tabs>
       ) : (
-        // OpenCode: directly show form without tabs
         <ProviderForm
           appId={appId}
           submitLabel={t("common.add")}
@@ -306,7 +295,6 @@ export function AddProviderDialog({
         />
       )}
 
-      {/* Universal Provider Form Modal */}
       {showUniversalTab && (
         <UniversalProviderFormModal
           isOpen={universalFormOpen}