fix: recover stuck background updates

server/cli/update.ts

@@ -26,7 +26,7 @@ import {
   type ReleaseMetadata,
   type UrlPolicy,
 } from "../update.js";
-import { attachSidecarHash } from "../update-service.js";
+import { ACTIVE_UPDATE_STATUSES, attachSidecarHash } from "../update-service.js";
 import type { UpdateJobStatus } from "../../shared/contracts.js";
 
 const updateRequestFileSchema = z.object({
@@ -153,7 +153,7 @@ function writeJob(sqlite: Database.Database | undefined, jobId: string, values:
       operation, status, version, platform, release_url, asset_name, asset_url,
       expected_sha256, actual_sha256, download_path, backup_path, size_bytes, error_message,
       created_at, updated_at, completed_at)
-    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
     ON CONFLICT(id) DO UPDATE SET
       admin_id=COALESCE(excluded.admin_id, update_jobs.admin_id),
       session_hash=COALESCE(excluded.session_hash, update_jobs.session_hash),
@@ -355,7 +355,9 @@ export function finalizeUpdateJob(
     FROM update_jobs WHERE id=?
   `).get(jobId) as { id: string; status: UpdateJobStatus; version: string; platform: string; adminId: string | null; requestId: string | null; sessionHash: string | null } | undefined;
   if (!row) throw new Error("更新任务不存在");
-  if (row.status !== "applying" && row.status !== "completed" && row.status !== "failed") throw new Error("更新任务状态不允许完成");
+  const canComplete = row.status === "applying" || row.status === "completed";
+  const canFail = ACTIVE_UPDATE_STATUSES.includes(row.status) || row.status === "completed" || row.status === "failed";
+  if (status === "completed" ? !canComplete : !canFail) throw new Error("更新任务状态不允许完成");
   const now = Date.now();
   const safeFailureMessage = status === "failed" ? "新版本健康检查失败，已恢复上一版本" : null;
   sqlite.transaction(() => {
@@ -477,27 +479,34 @@ export async function main(config: AppConfig = loadConfig()): Promise<void> {
   const database = openDatabase(config);
   try {
     if (request?.operation === "apply") {
-      const staged = database.sqlite.prepare("SELECT download_path AS downloadPath, version FROM update_jobs WHERE id=? AND status='staged' AND operation='apply'").get(request.jobId) as { downloadPath: string | null; version: string } | undefined;
-      if (!staged?.downloadPath || staged.version !== request.version) throw new Error("更新暂存任务无效");
-      const root = path.resolve(config.updateWorkspaceDir);
-      const candidate = await validateStagedWorkspacePath(staged.downloadPath, root);
-      await applyStagedUpdate({
-        sqlite: database.sqlite,
-        jobId: request.jobId,
-        version: request.version,
-        stagedPath: candidate,
-        currentDir,
-        currentLink: request.currentLink,
-        releasesDir: request.releasesDir,
-        workspaceRoot: root,
-        ...(backupArchive ? { backupArchivePath: backupArchive } : {}),
-        ...(dataBackupArchive ? { dataBackupArchivePath: dataBackupArchive } : {}),
-        dataBackupSource: config.dataDir,
-        maxBytes: config.updateMaxBytes,
-        dataBackupMaxBytes: config.maxTotalBytes,
-      });
-      console.log(`更新已切换：${request.version}`);
-      return;
+      const staged = database.sqlite.prepare("SELECT status, operation, download_path AS downloadPath, version FROM update_jobs WHERE id=?").get(request.jobId) as { status: UpdateJobStatus; operation: "download" | "apply"; downloadPath: string | null; version: string } | undefined;
+      if (staged?.status === "staged" && staged.operation === "apply") {
+        if (!staged.downloadPath || staged.version !== request.version) throw new Error("更新暂存任务无效");
+        const root = path.resolve(config.updateWorkspaceDir);
+        const candidate = await validateStagedWorkspacePath(staged.downloadPath, root);
+        await applyStagedUpdate({
+          sqlite: database.sqlite,
+          jobId: request.jobId,
+          version: request.version,
+          stagedPath: candidate,
+          currentDir,
+          currentLink: request.currentLink,
+          releasesDir: request.releasesDir,
+          workspaceRoot: root,
+          ...(backupArchive ? { backupArchivePath: backupArchive } : {}),
+          ...(dataBackupArchive ? { dataBackupArchivePath: dataBackupArchive } : {}),
+          dataBackupSource: config.dataDir,
+          maxBytes: config.updateMaxBytes,
+          dataBackupMaxBytes: config.maxTotalBytes,
+        });
+        console.log(`更新已切换：${request.version}`);
+        return;
+      }
+      if (staged && !(staged.status === "queued" && staged.operation === "apply")) throw new Error("更新任务状态无效");
+      // A direct one-click request starts in queued/apply. Older clients do
+      // not have a separate download step, so fall through to runUpdate,
+      // which downloads, verifies, backs up, and switches the release in one
+      // transaction. A staged request still takes the branch above.
     }
     const result = await runUpdate({
       ...(effectiveMetadataUrl ? { metadataUrl: effectiveMetadataUrl } : {}),