v0.3.12: 统一环境变量管理 + 去重

- CHROMIUM_PATH 从3处散落移到 config/index.ts 统一管理
- startup-validator 移除冗余 CORS_ORIGIN 检查 (main.ts 已处理)
- docker run 补充 JWT_SECRET/ADMIN_PASSWORD/COOKIE_ENCRYPTION_KEY
- 云盘常量统一到 cloud-constants.ts (图标/标签/颜色)

source_clean/src/utils/qr-login.service.ts

@@ -19,7 +19,8 @@ const SESSIONS = new Map<string, QrSession>();
 const SESSION_TTL = 5 * 60 * 1000; // 5 minutes
 const COOKIE_CHECK_INTERVAL = 1500; // 1.5s between cookie checks
 
-const CHROMIUM_PATH = process.env.CHROMIUM_PATH || '/usr/bin/chromium-browser';
+import config from '../config';
+const CHROMIUM_PATH = config.chromiumPath;
 
 // Clean up old sessions periodically
 setInterval(() => {