fix: Claude Desktop 官方供应商添加报错 #3402 (#3405)

* fix: Claude Desktop 官方供应商添加时缺少 ANTHROPIC_BASE_URL 报错

根因：前端 mutation 为 claude-desktop 生成随机 UUID 作为 provider id，
后端 is_official_provider 通过 id 匹配跳过校验，随机 UUID 不匹配导致
走入普通 direct 模式校验并要求 ANTHROPIC_BASE_URL。

修复：
- 前端：claude-desktop + category=official 时使用固定 id "claude-desktop-official"
- 后端：validate_provider / validate_direct_provider / validate_proxy_provider /
  apply_provider_to_paths 增加 category=="official" 兜底检查

Fixes #3402

* fix: restrict Claude Desktop official provider detection

* fix: add Claude Desktop official provider via seed

---------

Co-authored-by: 金恩光 <enguang.jin@gmail.com>
Co-authored-by: Jason <farion1231@gmail.com>

src/components/providers/AddProviderDialog.tsx

@@ -30,6 +30,7 @@ interface AddProviderDialogProps {
     provider: Omit<Provider, "id"> & {
       providerKey?: string;
       suggestedDefaults?: OpenClawSuggestedDefaults;
+      ensureClaudeDesktopOfficialSeed?: boolean;
     },
   ) => Promise<void> | void;
 }
@@ -98,6 +99,7 @@ export function AddProviderDialog({
       const providerData: Omit<Provider, "id"> & {
         providerKey?: string;
         suggestedDefaults?: OpenClawSuggestedDefaults;
+        ensureClaudeDesktopOfficialSeed?: boolean;
       } = {
         name: values.name.trim(),
         notes: values.notes?.trim() || undefined,
@@ -109,6 +111,16 @@ export function AddProviderDialog({
         ...(values.meta ? { meta: values.meta } : {}),
       };
 
+      if (appId === "claude-desktop" && values.presetId) {
+        const presetIndex = parseInt(
+          values.presetId.replace("claude-desktop-", ""),
+        );
+        const preset = claudeDesktopProviderPresets[presetIndex];
+        providerData.ensureClaudeDesktopOfficialSeed =
+          values.presetCategory === "official" &&
+          preset?.category === "official";
+      }
+
       // OpenCode/OpenClaw: pass providerKey for ID generation
       if (
         (appId === "opencode" || appId === "openclaw" || appId === "hermes") &&