feat(admin): 仪表盘重构、代理线路修复与后台体验优化

- 各角色仪表盘：KPI 可点击跳转、快捷入口、去重冗余区块，代理/站点降级 analytics
- 代理线路：创建玩家权限、侧栏搜索、深链 URL、档案保存与删除预检等修复
- 统一密码最短 6 位；代理模块表格/侧栏背景色一致（admin-table-inset）
- 报表、钱包、对账、开奖、结算、配置等模块结构与 i18n 同步更新

src/i18n/locales/en/agents.json

@@ -56,7 +56,7 @@
     "noUnboundSite": "No sites without a level-1 agent",
     "openIntegrationSites": "Go to integration sites",
     "password": "Initial password",
-    "passwordHint": "At least 8 characters",
+    "passwordHint": "at least 6 characters",
     "secretsOnce": "Integration secrets are shown once — save them now",
     "siteCode": "Integration site",
     "siteCodePlaceholder": "Select site",
@@ -82,7 +82,8 @@
     "downlineEmptyShort": "No direct downline yet.",
     "downlineEmptyTitle": "No direct downline yet",
     "editAccount": "Account & status",
-    "editAgent": "Edit agent",
+    "editAgent": "Edit",
+    "parentMeta": "Parent {{name}}",
     "editCurrent": "Edit this agent",
     "expand": "Expand",
     "kicker": "Credit share · Agent tree",
@@ -112,6 +113,8 @@
     "tabDownline": "Downline",
     "tabOverview": "Overview",
     "tabPlayers": "Players",
+    "tabProfileShort": "Share & credit",
+    "openInTree": "Open in tree",
     "createDirectPlayer": "Create direct player",
     "createDownline": "Create child agent",
     "editDownline": "Edit agent",
@@ -125,6 +128,11 @@
   },
   "listFlatHint": "All operating agents in a flat list. Use row actions to add a child under a specific agent.",
   "listSearch": "Search name / code / login",
+  "viewModes": {
+    "label": "View",
+    "tree": "Tree",
+    "list": "List"
+  },
   "listTitle": "Agents",
   "loadFailed": "Failed to load agent tree",
   "modelGuide": "Agent layer controls data scope and delegation ceiling. Account permissions are assigned through roles.",
@@ -134,9 +142,9 @@
   "noAccess": "You do not have permission to manage agents. Contact an administrator.",
   "pageGuide": "Manage the agent tree, agent roles, agent accounts, and delegation ceilings here. Platform accounts and platform roles stay in platform governance pages.",
   "parentAgent": "Parent",
-  "passwordMinLength": "Password must be at least 8 characters",
-  "passwordOptionalHint": "Leave empty to keep unchanged, or enter an 8-character password",
-  "passwordPlaceholder": "Enter an 8-character password",
+  "passwordMinLength": "Password must be at least 6 characters",
+  "passwordOptionalHint": "Leave empty to keep unchanged, or enter a 6-character password",
+  "passwordPlaceholder": "Enter a 6-character password",
   "passwordRequired": "Password is required",
   "path": "Path",
   "playersPanel": {
@@ -157,8 +165,8 @@
     "initialPassword": "Initial password",
     "loginRequired": "Enter login username and initial password",
     "loginUsername": "Login username",
-    "passwordHint": "At least 8 characters",
-    "passwordMinLength": "Initial password must be at least 8 characters",
+    "passwordHint": "at least 6 characters",
+    "passwordMinLength": "Initial password must be at least 6 characters",
     "playerRef": "Player ref",
     "rebateInherited": "Inherit agent default rebate",
     "rebateRate": "Rebate rate (%)",
@@ -168,7 +176,11 @@
     "riskTagsPlaceholder": "Comma-separated",
     "scopedTo": "Direct players: {{agent}}",
     "siteCode": "Line site",
-    "usernameNickname": "Username / nickname"
+    "usernameNickname": "Username / nickname",
+    "searchPh": "Search player account / ID",
+    "manageSettlement": "Process bill",
+    "noPendingBillsGoCenter": "No pending bills for this player. Opened settlement center.",
+    "billingLoadFailed": "Failed to load bills"
   },
   "profile": {
     "availableCredit": "Available to grant {{amount}}",