Add admin upgrade package preflight

src/app/api/admin/upgrade/route.ts

@@ -37,6 +37,7 @@ type UpgradeJobState = {
   updatedAt: string;
   finishedAt?: string;
   logs: string[];
+  dryRun?: boolean;
 };
 
 const MAX_PACKAGE_BYTES = 300 * 1024 * 1024;
@@ -74,6 +75,7 @@ export async function POST(request: NextRequest) {
     const form = await request.formData();
     const modeValue = String(form.get('mode') || '');
     const mode = modeValue === 'hot' || modeValue === 'cold' ? modeValue : null;
+    const dryRun = String(form.get('dryRun') || '') === 'true';
     if (!mode) {
       return NextResponse.json({ error: '请选择热更新或冷更新' }, { status: 400 });
     }
@@ -116,10 +118,14 @@ export async function POST(request: NextRequest) {
       startedAt: now,
       updatedAt: now,
       logs: [`[${now}] 上传升级包 ${file.name} (${file.size} bytes)`],
+      dryRun,
     };
+    if (dryRun) {
+      initialState.message = '升级包已上传，正在执行预检';
+    }
     await writeState(jobDir, initialState);
 
-    const child = spawn(process.execPath, [
+    const runnerArgs = [
       path.join(process.cwd(), 'scripts/admin-upgrade-runner.mjs'),
       '--job-id',
       jobId,
@@ -131,7 +137,10 @@ export async function POST(request: NextRequest) {
       file.name,
       '--project',
       process.cwd(),
-    ], {
+    ];
+    if (dryRun) runnerArgs.push('--dry-run', 'true');
+
+    const child = spawn(process.execPath, runnerArgs, {
       cwd: process.cwd(),
       detached: true,
       stdio: 'ignore',
@@ -143,7 +152,7 @@ export async function POST(request: NextRequest) {
     });
     child.unref();
 
-    return NextResponse.json({ success: true, job: initialState });
+    return NextResponse.json({ success: true, dryRun, job: initialState });
   } catch (error) {
     console.error('[admin/upgrade] failed to start upgrade:', error);
     return NextResponse.json({ error: error instanceof Error ? error.message : '创建升级任务失败' }, { status: 500 });