feat(grokbuild): add Grok Official provider with official-state import

Add a "Grok Official" preset and seed (grokbuild-official) whose empty
config represents the official login state: no custom [model.*] tables
are written, so Grok CLI falls back to its built-in xAI OAuth login and
cc-switch never touches those credentials.

Backend:
- Seed entry in OFFICIAL_SEEDS plus ensure_grokbuild_official_provider
  command for on-demand repair (the one-shot master seeding flag is
  already set for existing databases).
- Split validation into syntax-only (empty allowed) for live reads,
  writes and official snapshots, keeping the full custom-model shape
  check for non-official provider writes and imports. Backup/restore
  can now round-trip an official-state live file.
- Manual import (command layer only) recognizes an official-state live
  config and imports it as the official entry set as current, matching
  the Codex official-login import outcome. Startup auto-import keeps
  rejecting official-state live so a deleted official entry is never
  resurrected on launch: startup import only captures real user data
  as "default" and never manufactures official entries.
- Manual import also ensures the official entry before importing
  (claude-desktop precedent) and after a successful custom import, so
  first-time users end up with default + official like other apps.
- Proxy takeover guards skip or reject official-state live configs in
  all three takeover paths, consistent with the official-provider
  takeover ban.

Frontend:
- Grok Official preset entry in the GrokBuild form: official category
  hides connection fields and passes the raw config through untouched.
- Filter managed-OAuth presets out of the GrokBuild preset list; they
  were never wired for this app and produced keyless broken configs.

Tests cover seed presence, official round-trip, ensure-after-deletion,
and the four import scenarios including startup non-resurrection.

src/components/providers/forms/GrokBuildProviderForm.tsx

@@ -49,15 +49,41 @@ import {
   validateGrokBuildConfig,
 } from "@/utils/grokBuildConfig";
 import { resolveProviderIcon } from "@/utils/providerIcon";
+import { GROKBUILD_OFFICIAL_PROVIDER_ID } from "@/utils/providerCapabilities";
 
 type GrokBuildProviderFormProps = Omit<ProviderFormProps, "appId">;
 
+// 官方条目与后端 seed（providers_seed.rs 的 "Grok Official"）对应：
+// 空 config = 不写自定义模型表，Grok CLI 回落到自带的 xAI OAuth 登录。
+// 预设 id 复用固定 provider id，AddProviderDialog 据此走 ensure seed 流程。
+const grokOfficialPreset: CodexProviderPreset = {
+  name: "Grok Official",
+  websiteUrl: "https://x.ai/grok",
+  isOfficial: true,
+  category: "official",
+  auth: {},
+  config: "",
+  icon: "grok",
+  iconColor: "currentColor",
+};
+
 const grokPresetEntries: Array<{
   id: string;
   preset: CodexProviderPreset;
-}> = codexProviderPresets
-  .map((preset, index) => ({ id: `grokbuild-${index}`, preset }))
-  .filter(({ preset }) => preset.category !== "official" && !preset.isOfficial);
+}> = [
+  { id: GROKBUILD_OFFICIAL_PROVIDER_ID, preset: grokOfficialPreset },
+  ...codexProviderPresets
+    .map((preset, index) => ({ id: `grokbuild-${index}`, preset }))
+    .filter(
+      // 托管 OAuth 预设（如 "xAI (Grok) OAuth"）只在 Codex 表单接线；
+      // Grok CLI 原生支持订阅登录，这里选中只会产出无 key 的坏配置，故排除。
+      ({ preset }) =>
+        preset.category !== "official" &&
+        !preset.isOfficial &&
+        !preset.providerType &&
+        !preset.requiresOAuth,
+    ),
+];
 
 export const grokApiBackendFromApiFormat = (format: CodexApiFormat): string => {
   if (format === "openai_chat") return "chat_completions";
@@ -233,6 +259,20 @@ export function GrokBuildProviderForm({
       return;
     }
 
+    if (presetId === GROKBUILD_OFFICIAL_PROVIDER_ID) {
+      // 官方登录：无 API Key / 地址 / 模型表可填，提交走 ensure seed 流程
+      form.setValue("name", grokOfficialPreset.name);
+      form.setValue("websiteUrl", grokOfficialPreset.websiteUrl);
+      form.setValue("icon", grokOfficialPreset.icon ?? "");
+      form.setValue("iconColor", grokOfficialPreset.iconColor ?? "");
+      setCategory("official");
+      setIsPartner(false);
+      setPartnerPromotionKey(undefined);
+      setPresetEndpoints([]);
+      setRawConfig("");
+      return;
+    }
+
     const entry = grokPresetEntries.find(
       (candidate) => candidate.id === presetId,
     );
@@ -292,6 +332,24 @@ export function GrokBuildProviderForm({
 
   const handleSubmit = async (values: ProviderFormData) => {
     const name = values.name.trim();
+
+    // 官方条目：config 快照原样透传（新增时为空），不做自定义模型字段校验，
+    // 也不重建 config —— 新增走 ensure seed，编辑只允许改名称/图标等元信息。
+    if (category === "official") {
+      await onSubmit({
+        ...values,
+        name,
+        websiteUrl: values.websiteUrl?.trim() ?? "",
+        notes: values.notes?.trim() ?? "",
+        settingsConfig: JSON.stringify({ config: rawConfig }),
+        presetId: selectedPresetId ?? undefined,
+        presetCategory: "official",
+        isPartner: false,
+        meta: initialData?.meta,
+      });
+      return;
+    }
+
     const parsedContextWindow = Number.parseInt(contextWindow, 10);
     const envKey = parseGrokBuildConfig(rawConfig).envKey?.trim();
     if (
@@ -411,141 +469,145 @@ export function GrokBuildProviderForm({
 
         <BasicFormFields form={form} />
 
-        <div className="grid grid-cols-1 gap-4 md:grid-cols-3">
-          <FormItem>
-            <FormLabel htmlFor="grokbuild-profile">
-              {t("grokBuild.profile", { defaultValue: "客户端模型档位" })}
-            </FormLabel>
-            <Input
-              id="grokbuild-profile"
-              value={profile}
-              onChange={(event) => {
-                const value = event.target.value;
-                setProfile(value);
-                syncStructuredConfig({ model: value });
+        {category !== "official" && (
+          <>
+            <div className="grid grid-cols-1 gap-4 md:grid-cols-3">
+              <FormItem>
+                <FormLabel htmlFor="grokbuild-profile">
+                  {t("grokBuild.profile", { defaultValue: "客户端模型档位" })}
+                </FormLabel>
+                <Input
+                  id="grokbuild-profile"
+                  value={profile}
+                  onChange={(event) => {
+                    const value = event.target.value;
+                    setProfile(value);
+                    syncStructuredConfig({ model: value });
+                  }}
+                  placeholder="grok-4.5"
+                  autoComplete="off"
+                />
+              </FormItem>
+
+              <FormItem>
+                <FormLabel htmlFor="grokbuild-api-backend">
+                  {t("grokBuild.apiBackend", { defaultValue: "API Backend" })}
+                </FormLabel>
+                <Input
+                  id="grokbuild-api-backend"
+                  value={apiBackend}
+                  onChange={(event) => {
+                    const value = event.target.value;
+                    setApiBackend(value);
+                    syncStructuredConfig({ apiBackend: value });
+                  }}
+                  placeholder="responses"
+                  autoComplete="off"
+                />
+              </FormItem>
+
+              <FormItem>
+                <FormLabel htmlFor="grokbuild-context-window">
+                  {t("grokBuild.contextWindow", { defaultValue: "上下文窗口" })}
+                </FormLabel>
+                <Input
+                  id="grokbuild-context-window"
+                  type="number"
+                  min={1}
+                  step={1}
+                  value={contextWindow}
+                  onChange={(event) => {
+                    const value = event.target.value;
+                    setContextWindow(value);
+                    syncStructuredConfig({
+                      contextWindow: Number.parseInt(value, 10),
+                    });
+                  }}
+                />
+              </FormItem>
+            </div>
+
+            <CodexFormFields
+              appId="grokbuild"
+              providerId={providerId}
+              codexApiKey={apiKey}
+              onApiKeyChange={(value) => {
+                setApiKey(value);
+                syncStructuredConfig({ apiKey: value });
               }}
-              placeholder="grok-4.5"
-              autoComplete="off"
-            />
-          </FormItem>
-
-          <FormItem>
-            <FormLabel htmlFor="grokbuild-api-backend">
-              {t("grokBuild.apiBackend", { defaultValue: "API Backend" })}
-            </FormLabel>
-            <Input
-              id="grokbuild-api-backend"
-              value={apiBackend}
-              onChange={(event) => {
-                const value = event.target.value;
-                setApiBackend(value);
-                syncStructuredConfig({ apiBackend: value });
+              category={category}
+              shouldShowApiKeyLink={Boolean(websiteUrl)}
+              websiteUrl={websiteUrl}
+              isPartner={isPartner}
+              partnerPromotionKey={partnerPromotionKey}
+              shouldShowSpeedTest
+              codexBaseUrl={baseUrl}
+              onBaseUrlChange={(value) => {
+                setBaseUrl(value);
+                syncStructuredConfig({ baseUrl: value });
               }}
-              placeholder="responses"
-              autoComplete="off"
-            />
-          </FormItem>
-
-          <FormItem>
-            <FormLabel htmlFor="grokbuild-context-window">
-              {t("grokBuild.contextWindow", { defaultValue: "上下文窗口" })}
-            </FormLabel>
-            <Input
-              id="grokbuild-context-window"
-              type="number"
-              min={1}
-              step={1}
-              value={contextWindow}
-              onChange={(event) => {
-                const value = event.target.value;
-                setContextWindow(value);
-                syncStructuredConfig({
-                  contextWindow: Number.parseInt(value, 10),
-                });
+              isFullUrl={isFullUrl}
+              onFullUrlChange={setIsFullUrl}
+              isEndpointModalOpen={isEndpointModalOpen}
+              onEndpointModalToggle={setIsEndpointModalOpen}
+              onCustomEndpointsChange={setDraftCustomEndpoints}
+              autoSelect={endpointAutoSelect}
+              onAutoSelectChange={setEndpointAutoSelect}
+              codexModel={upstreamModel}
+              onModelChange={(value) => {
+                setUpstreamModel(value);
+                syncStructuredConfig({ upstreamModel: value });
               }}
+              apiFormat={apiFormat}
+              onApiFormatChange={(value) => {
+                const backend = grokApiBackendFromApiFormat(value);
+                setApiFormat(value);
+                setApiBackend(backend);
+                syncStructuredConfig({ apiBackend: backend });
+              }}
+              anthropicAuthField={anthropicAuthField}
+              onAnthropicAuthFieldChange={setAnthropicAuthField}
+              impersonateClaudeCode={impersonateClaudeCode}
+              onImpersonateClaudeCodeChange={setImpersonateClaudeCode}
+              maxOutputTokens={maxOutputTokens}
+              onMaxOutputTokensChange={setMaxOutputTokens}
+              codexChatReasoning={codexChatReasoning}
+              onCodexChatReasoningChange={setCodexChatReasoning}
+              promptCacheRouting={promptCacheRouting}
+              onPromptCacheRoutingChange={setPromptCacheRouting}
+              speedTestEndpoints={speedTestEndpoints}
+              customUserAgent={customUserAgent}
+              onCustomUserAgentChange={setCustomUserAgent}
+              localProxyHeadersOverride={headersOverride}
+              onLocalProxyHeadersOverrideChange={setHeadersOverride}
+              localProxyBodyOverride={bodyOverride}
+              onLocalProxyBodyOverrideChange={setBodyOverride}
             />
-          </FormItem>
-        </div>
 
-        <CodexFormFields
-          appId="grokbuild"
-          providerId={providerId}
-          codexApiKey={apiKey}
-          onApiKeyChange={(value) => {
-            setApiKey(value);
-            syncStructuredConfig({ apiKey: value });
-          }}
-          category={category}
-          shouldShowApiKeyLink={Boolean(websiteUrl)}
-          websiteUrl={websiteUrl}
-          isPartner={isPartner}
-          partnerPromotionKey={partnerPromotionKey}
-          shouldShowSpeedTest
-          codexBaseUrl={baseUrl}
-          onBaseUrlChange={(value) => {
-            setBaseUrl(value);
-            syncStructuredConfig({ baseUrl: value });
-          }}
-          isFullUrl={isFullUrl}
-          onFullUrlChange={setIsFullUrl}
-          isEndpointModalOpen={isEndpointModalOpen}
-          onEndpointModalToggle={setIsEndpointModalOpen}
-          onCustomEndpointsChange={setDraftCustomEndpoints}
-          autoSelect={endpointAutoSelect}
-          onAutoSelectChange={setEndpointAutoSelect}
-          codexModel={upstreamModel}
-          onModelChange={(value) => {
-            setUpstreamModel(value);
-            syncStructuredConfig({ upstreamModel: value });
-          }}
-          apiFormat={apiFormat}
-          onApiFormatChange={(value) => {
-            const backend = grokApiBackendFromApiFormat(value);
-            setApiFormat(value);
-            setApiBackend(backend);
-            syncStructuredConfig({ apiBackend: backend });
-          }}
-          anthropicAuthField={anthropicAuthField}
-          onAnthropicAuthFieldChange={setAnthropicAuthField}
-          impersonateClaudeCode={impersonateClaudeCode}
-          onImpersonateClaudeCodeChange={setImpersonateClaudeCode}
-          maxOutputTokens={maxOutputTokens}
-          onMaxOutputTokensChange={setMaxOutputTokens}
-          codexChatReasoning={codexChatReasoning}
-          onCodexChatReasoningChange={setCodexChatReasoning}
-          promptCacheRouting={promptCacheRouting}
-          onPromptCacheRoutingChange={setPromptCacheRouting}
-          speedTestEndpoints={speedTestEndpoints}
-          customUserAgent={customUserAgent}
-          onCustomUserAgentChange={setCustomUserAgent}
-          localProxyHeadersOverride={headersOverride}
-          onLocalProxyHeadersOverrideChange={setHeadersOverride}
-          localProxyBodyOverride={bodyOverride}
-          onLocalProxyBodyOverrideChange={setBodyOverride}
-        />
-
-        <div className="space-y-2">
-          <FormLabel htmlFor="grokbuild-config-toml">
-            {t("grokBuild.rawConfig", { defaultValue: "config.toml" })}
-          </FormLabel>
-          <JsonEditor
-            value={rawConfig}
-            onChange={handleRawConfigChange}
-            placeholder=""
-            darkMode={isDarkMode}
-            rows={12}
-            showValidation={false}
-            language="javascript"
-          />
-          {rawConfigError && (
-            <p className="text-xs text-destructive">
-              {t("grokBuild.invalidToml", {
-                error: rawConfigError,
-                defaultValue: `Invalid config.toml: ${rawConfigError}`,
-              })}
-            </p>
-          )}
-        </div>
+            <div className="space-y-2">
+              <FormLabel htmlFor="grokbuild-config-toml">
+                {t("grokBuild.rawConfig", { defaultValue: "config.toml" })}
+              </FormLabel>
+              <JsonEditor
+                value={rawConfig}
+                onChange={handleRawConfigChange}
+                placeholder=""
+                darkMode={isDarkMode}
+                rows={12}
+                showValidation={false}
+                language="javascript"
+              />
+              {rawConfigError && (
+                <p className="text-xs text-destructive">
+                  {t("grokBuild.invalidToml", {
+                    error: rawConfigError,
+                    defaultValue: `Invalid config.toml: ${rawConfigError}`,
+                  })}
+                </p>
+              )}
+            </div>
+          </>
+        )}
 
         <FormField
           control={form.control}