Simplify proxy routing and configuration

test/server/subscription.test.js

@@ -0,0 +1,12 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import { parseSubscriptionBody } from '../../src/server/subscription.js';
+
+test('subscription server tags are trimmed for selection', () => {
+  const { servers } = parseSubscriptionBody(JSON.stringify({
+    outbounds: [{ type: 'vless', tag: 'de-frankfurt ', server: 'de.example', server_port: 443 }],
+  }));
+
+  assert.equal(servers[0].tag, 'de-frankfurt');
+});