v0.5.4: 全面修复 — template literal URL, Cookie验证, 用户默认is_active, 默认账号路由, 空间信息, 密钥清理, promoForm修复

修复:
- quark-share.ts/storage.ts: 9处template literal ${}缺失导致fetch URL写死
- user/routes.ts: testCloudConnectionWithCookie缺await + 按cloudType分发驱动
- credential.service.ts: INSERT缺?参数 (9values/10cols)
- user/routes.ts: 用户新增网盘默认is_active=0
- admin.routes.ts: 新增PUT /admin/cloud-configs/:id/primary路由
- database.ts: is_primary列迁移
- UserDashboard.vue: 保存时传递storage_used/storage_total
- SystemConfig.vue: promoForm const重赋值bug
- config/index.ts: 移除泄露的默认密钥token

source_clean/src/admin/system-config.service.ts

@@ -22,18 +22,18 @@ export function getSystemConfig(key: string): string | null {
 export function updateSystemConfig(key: string, value: string): void {
   const db = getDb();
   db.prepare(
-    "UPDATE system_configs SET value = ?, updated_at = ? WHERE key = ?"
-  ).run(value, localTimestamp(), key);
+    "INSERT INTO system_configs (key, value, updated_at, description) VALUES (?, ?, ?, '') ON CONFLICT(key) DO UPDATE SET value = excluded.value, updated_at = excluded.updated_at"
+  ).run(key, value, localTimestamp());
 }
 
 export function updateSystemConfigs(entries: { key: string; value: string }[]): void {
   const db = getDb();
-  const update = db.prepare(
-    "UPDATE system_configs SET value = ?, updated_at = ? WHERE key = ?"
+  const upsert = db.prepare(
+    "INSERT INTO system_configs (key, value, updated_at, description) VALUES (?, ?, ?, '') ON CONFLICT(key) DO UPDATE SET value = excluded.value, updated_at = excluded.updated_at"
   );
   const tx = db.transaction((items: { key: string; value: string }[]) => {
     for (const item of items) {
-      update.run(item.value, localTimestamp(), item.key);
+      upsert.run(item.key, item.value, localTimestamp());
     }
   });
   tx(entries);