chore: 提交所有工作进度 — SaaS 后端增强、Admin UI、桌面端集成

包含大量 SaaS 平台改进、Admin 管理后台更新、桌面端集成完善、
文档同步、测试文件重构等内容。为 QA 测试准备干净工作树。

desktop/src/components/SaaS/ConfigMigrationWizard.tsx

@@ -136,6 +136,7 @@ export function ConfigMigrationWizard({ onDone }: { onDone: () => void }) {
 
         const merged = [...syncedModels, ...saasModels];
         localStorage.setItem('zclaw-custom-models', JSON.stringify(merged));
+        localStorage.setItem('zclaw-config-dirty.model.custom', '1');
       } else if (direction === 'merge') {
         // Merge: local wins for conflicts
         const kept = localModels.filter((m) => !selectedKeys.has(m.id));
@@ -153,6 +154,7 @@ export function ConfigMigrationWizard({ onDone }: { onDone: () => void }) {
 
         const merged = [...kept, ...saasOnly];
         localStorage.setItem('zclaw-custom-models', JSON.stringify(merged));
+        localStorage.setItem('zclaw-config-dirty.model.custom', '1');
       }
 
       setSyncResult(conflicts.length > 0 && conflicts.length === selectedKeys.size ? 'partial' : 'success');