重构(平台入口): 平台侧与 AGC 壳改用三池余额，退役 legacy 总额写入通道

- 平台入口与钱包 store 不再从充值中心响应读 walletBalance，合计改为按三池派生
- AGC 账户钱包同步：只透传 mudPointBalance，删掉 RechargeContent 的 walletBalance 排除项
- 删除已无生产调用方的 applyLegacyWalletBalanceSnapshot 与对应测试；明细读取失败不再伪造「只有总额」的中间态
- 图片编辑器与平台入口测试 fixture 改为三池形状，钱包面板断言改用「永久泥点 / 月度泥点」

Co-authored-by: Junie <junie@jetbrains.com>

src/components/platform-entry/PlatformEntryActiveFlowShell.test.tsx

@@ -41,7 +41,13 @@ const profileClientMock = vi.hoisted(() => ({
 
 const profileCenterMock = vi.hoisted(() => ({
   isWalletLedgerOpen: false,
-  rechargeCenter: null as { walletBalance: number } | null,
+  rechargeCenter: null as {
+    mudPointBalance?: {
+      dailyFreePoints: number;
+      monthlyPoints: number;
+      permanentPoints: number;
+    };
+  } | null,
 }));
 
 const gameDistributionMock = vi.hoisted(() => ({
@@ -245,12 +251,10 @@ describe('PlatformEntryActiveFlowShell', () => {
       updatedAt: null,
     });
     profileClientMock.getPlatformProfileRechargeCenter.mockResolvedValue({
-      walletBalance: 888,
       mudPointBalance: {
-        totalPoints: 207,
         permanentPoints: 180,
-        limitedPoints: 7,
-        limitedExpiresAt: '2026-08-31T16:00:00Z',
+        monthlyPoints: 7,
+        monthlyResetsAt: '2026-08-31T16:00:00Z',
         dailyFreePoints: 20,
         dailyFreeResetPoints: 20,
         dailyFreeResetsAt: '2026-08-04T00:00:00+08:00',
@@ -294,7 +298,14 @@ describe('PlatformEntryActiveFlowShell', () => {
     authUiMock.value.canAccessProtectedData = true;
     profileClientMock.getPlatformProfileDashboard.mockResolvedValue(null);
     profileClientMock.getPlatformProfileRechargeCenter.mockResolvedValue({
-      walletBalance: 37,
+      mudPointBalance: {
+        permanentPoints: 37,
+        monthlyPoints: 0,
+        monthlyResetsAt: null,
+        dailyFreePoints: 0,
+        dailyFreeResetPoints: 20,
+        dailyFreeResetsAt: '2026-08-04T00:00:00+08:00',
+      },
     });
     profileCenterMock.isWalletLedgerOpen = true;
 
@@ -338,10 +349,9 @@ describe('PlatformEntryActiveFlowShell', () => {
     profileClientMock.getPlatformProfileDashboard.mockResolvedValue(null);
     profileClientMock.getPlatformProfileRechargeCenter.mockResolvedValue({
       mudPointBalance: {
-        totalPoints: 66,
         permanentPoints: 66,
-        limitedPoints: 0,
-        limitedExpiresAt: null,
+        monthlyPoints: 0,
+        monthlyResetsAt: null,
         dailyFreePoints: 0,
         dailyFreeResetPoints: 20,
         dailyFreeResetsAt: '2026-08-04T00:00:00+08:00',
@@ -379,10 +389,9 @@ describe('PlatformEntryActiveFlowShell', () => {
     });
     resolveNextOwner({
       mudPointBalance: {
-        totalPoints: 67,
         permanentPoints: 67,
-        limitedPoints: 0,
-        limitedExpiresAt: null,
+        monthlyPoints: 0,
+        monthlyResetsAt: null,
         dailyFreePoints: 0,
         dailyFreeResetPoints: 20,
         dailyFreeResetsAt: '2026-08-04T00:00:00+08:00',
@@ -406,10 +415,9 @@ describe('PlatformEntryActiveFlowShell', () => {
     profileClientMock.getPlatformProfileDashboard.mockResolvedValue(null);
     profileClientMock.getPlatformProfileRechargeCenter.mockResolvedValue({
       mudPointBalance: {
-        totalPoints: 10,
         permanentPoints: 10,
-        limitedPoints: 0,
-        limitedExpiresAt: null,
+        monthlyPoints: 0,
+        monthlyResetsAt: null,
         dailyFreePoints: 0,
         dailyFreeResetPoints: 20,
         dailyFreeResetsAt: '2026-08-04T00:00:00+08:00',