✨ feat(homepage): enhance banner visuals & UX

• Added read-only Base URL input that shows `status.server_address` (fallback `window.location.origin`) and copies value on click.
• Embedded `ScrollList` as input `suffix`; auto-cycles common endpoints every 3 s and allows manual selection.
• Introduced `API_ENDPOINTS` array in `web/src/constants/common.constant.js` for centralized endpoint management.
• Implemented custom CSS to hide ScrollList wheel indicators / scrollbars for a cleaner look.
• Created two blurred colour spheres behind the banner (`blur-ball-indigo`, `blur-ball-teal`) with light-/dark-mode opacity tweaks and lower vertical placement.
• Increased letter-spacing for Chinese heading via conditional `tracking-wide` / `md:tracking-wider` classes to improve readability.
• Misc: updated imports, helper functions, and responsive sizes to keep UI consistent across devices.

web/src/constants/common.constant.js

@@ -2,4 +2,19 @@ export const ITEMS_PER_PAGE = 10; // this value must keep same as the one define
 
 export const DEFAULT_ENDPOINT = '/api/ratio_config';
 
-export const TABLE_COMPACT_MODES_KEY = 'table_compact_modes';
+export const TABLE_COMPACT_MODES_KEY = 'table_compact_modes';
+
+export const API_ENDPOINTS = [
+  '/v1/chat/completions',
+  '/v1/responses',
+  '/v1/messages',
+  '/v1beta/models',
+  '/v1/embeddings',
+  '/v1/rerank',
+  '/v1/images/generations',
+  '/v1/images/edits',
+  '/v1/images/variations',
+  '/v1/audio/speech',
+  '/v1/audio/transcriptions',
+  '/v1/audio/translations'
+];