feat: add Z12/Z13 bind APIs, stock import, and sync docs

Enable auto default sync channels on agent activate, bind-code/phone confirm flows, publish ALTER, and align admin/yuheng docs with the production bind path.

web/src/api.ts

@@ -296,6 +296,25 @@ export async function listApps(session: Session) {
   };
 }
 
+/** Z9e：为本租户已发布模块补齐 import/export（一键开启导入） */
+export async function ensureAppsImport(session: Session, dryRun = false) {
+  const q = dryRun ? "?dry_run=1" : "";
+  const res = await apiFetch(`${PLATFORM}/api/v1/admin/apps/ensure-import${q}`, {
+    method: "POST",
+    headers: { Authorization: `Bearer ${session.accessToken}` },
+  });
+  const data = await readJson(res);
+  throwIfBad(res, data, "一键开启导入失败");
+  return data as {
+    scanned: number;
+    updated: number;
+    skipped: number;
+    dry_run: boolean;
+    updated_slugs?: string[];
+    message?: string;
+  };
+}
+
 export async function saveDraft(session: Session, slug: string, blueprint: any) {
   const res = await apiFetch(`${PLATFORM}/api/v1/apps/${slug}/draft`, {
     method: "PUT",