feat: refactor agent manager, media library, and player UX

- Split admin users page into player/tier-1/tier-2 tabs with affiliation labels and context-specific create dialogs

- Add media library with uploaded_files migration, list/delete unused files API, and admin nav route

- Enforce player username format (alphanumeric 3-32) on frontend and backend via shared package

- Improve admin dialog/panel styling; refine player parlay and match bet card kickoff display

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/player/src/utils/parlayColumns.ts

@@ -11,6 +11,27 @@ export const PARLAY_MARKET_TYPES = [
 
 export type ParlayMarketType = (typeof PARLAY_MARKET_TYPES)[number]['key'];
 
+/** 按全场 / 半场分组（headerKey 对应 bet.ft / bet.ht） */
+export const PARLAY_MARKET_GROUPS = [
+  {
+    headerKey: 'ft',
+    columns: [
+      { key: 'FT_HANDICAP', labelKey: 'parlay_lbl_handicap' },
+      { key: 'FT_OVER_UNDER', labelKey: 'parlay_lbl_ou' },
+      { key: 'FT_1X2', labelKey: 'parlay_lbl_1x2' },
+      { key: 'FT_ODD_EVEN', labelKey: 'parlay_lbl_oe' },
+    ],
+  },
+  {
+    headerKey: 'ht',
+    columns: [
+      { key: 'HT_HANDICAP', labelKey: 'parlay_lbl_handicap' },
+      { key: 'HT_OVER_UNDER', labelKey: 'parlay_lbl_ou' },
+      { key: 'HT_1X2', labelKey: 'parlay_lbl_1x2' },
+    ],
+  },
+] as const;
+
 /** 选项简称 i18n key（串关格内展示） */
 export const PARLAY_SELECTION_KEYS: Record<string, string> = {
   HOME: 'parlay_sel_home',