fix: 修复 SOCKS5 URI

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.19.44",
+  "version": "2.19.45",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and Shadowrocket.",
   "main": "src/main.js",
   "scripts": {

backend/src/core/proxy-utils/producers/uri.js

@@ -33,7 +33,9 @@ export default function URI_Producer() {
         switch (proxy.type) {
             case 'socks5':
                 result = `socks://${encodeURIComponent(
-                    Base64.encode(`${proxy.username}:${proxy.password}`),
+                    Base64.encode(
+                        `${proxy.username ?? ''}:${proxy.password ?? ''}`,
+                    ),
                 )}@${proxy.server}:${proxy.port}#${proxy.name}`;
                 break;
             case 'ss':