Revert "feat(quota): unify OAuth and API balance lookup (#279)"

This reverts commit d473c8b8f186e82eb63e15d7a3bc54f05810b087.

tests/uiLocalization.test.ts

@@ -5,17 +5,7 @@ import { fileURLToPath } from 'node:url';
 import ts from 'typescript';
 
 const sourceRoot = fileURLToPath(new URL('../src/', import.meta.url));
-const technicalText = new Set([
-  'EasyCLIProxyAPI',
-  'WebSocket',
-  'Fast',
-  'HTTP',
-  'auto',
-  'excluded_models',
-  'headers',
-  'ms',
-  'note',
-]);
+const technicalText = new Set(['EasyCLIProxyAPI', 'WebSocket', 'Fast', 'ms', 'auto']);
 const technicalPlaceholders = new Set(['1h', 'sk-...', 'gpt-5.6-terra', 'https://...']);
 
 function componentFiles(directory: string): string[] {