feat(admin-web): expose AI point balance and usage ledger

Surfaces the new AI point quota in the workspace shell and adds a
Personal Center → AI Point Usage page that shows balance, base-char
rule, and the paginated reservation/refund history. Updates shared
types for the QuotaSummary and ledger payloads.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/admin-web/src/i18n/messages/en-US.ts

@@ -86,6 +86,8 @@ const enUS = {
     kolManage: "Prompt Management",
     kolDashboard: "Dashboard",
     kolProfile: "Profile",
+    personalCenter: "Personal Center",
+    aiPointUsage: "AI Point Usage",
   },
   auth: {
     welcomeBack: "Welcome back",
@@ -117,10 +119,31 @@ const enUS = {
     quotaTitle: "Plan & Quota",
     quotaStatus: "Healthy",
     remainingQuota: "Article quota",
+    aiPoints: "AI points",
     resetAt: "Reset at",
     userFallback: "Admin",
     logout: "Logout",
     planFallback: "Free Plan",
+    aiUsageTitle: "AI Point Usage",
+    aiUsageRecent: "Recent Usage",
+    aiUsageEmpty: "No AI point usage yet",
+    aiUsageBase: "Tiered every {base} chars",
+    aiUsageRule: "{chars} chars / base {base}",
+    aiUsagePendingHelp: "Points have been reserved. They will be confirmed once the AI task completes; if generation fails, the points are returned automatically.",
+    aiUsageTypes: {
+      article_selection_optimize: "Article Selection Optimize",
+      template_analyze: "AI Analysis",
+      template_title_generate: "AI Title Generation",
+      template_outline_generate: "AI Outline Generation",
+      kol_prompt_generate: "KOL Prompt Generation",
+      kol_prompt_optimize: "KOL Prompt Optimize",
+    },
+    aiUsageStatus: {
+      pending: "Processing",
+      completed: "Charged",
+      refunded: "Refunded",
+      failed: "Failed",
+    },
   },
   route: {
     login: {
@@ -183,6 +206,22 @@ const enUS = {
       title: "Image Management",
       description: "Manage image assets, including folders, reference analysis, and cover library usage.",
     },
+    aiPoints: {
+      title: "AI Point Usage",
+      description: "Review AI point balance, cycle rules, and recent usage records.",
+    },
+  },
+  aiPoints: {
+    balance: "Available Points",
+    baseChars: "Base Characters",
+    ledgerTitle: "Usage Ledger",
+    ledgerLimit: "Latest {limit} records",
+    ledgerTotal: "{total} records",
+    table: {
+      usageType: "Usage",
+      points: "Points",
+      requestChars: "Metered Chars",
+    },
   },
   kol: {
     marketplace: {