feat(mining-admin): 系统账户显示具体省市名称

- 根据 regionCode 从 SyncedProvince/SyncedCity 表查找名称
- PROVINCE + 440000 显示为 "广东省公司"
- CITY + 440100 显示为 "广州市公司"

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/services/mining-admin-service/src/application/services/system-accounts.service.ts

@@ -81,6 +81,9 @@ export class SystemAccountsService {
     // 从 mining-service 获取挖矿数据
     const miningDataMap = await this.fetchMiningServiceSystemAccounts();
 
+    // 获取省市名称映射
+    const regionNameMap = await this.buildRegionNameMap();
+
     // 构建钱包数据映射
     const walletMap = new Map<string, any>();
     for (const wallet of syncedWalletAccounts) {
@@ -105,11 +108,14 @@ export class SystemAccountsService {
       const wallet = walletMap.get(key) || walletMap.get(contrib.accountType);
       const miningData = miningDataMap.get(key) || miningDataMap.get(contrib.accountType);
 
+      // 获取显示名称
+      const displayName = this.getDisplayName(contrib.accountType, contrib.regionCode, regionNameMap);
+
       return {
         id: contrib.id,
         accountType: contrib.accountType,
         regionCode: contrib.regionCode,
-        name: contrib.name,
+        name: displayName,
         code: wallet?.code || null,
         provinceId: wallet?.provinceId || null,
         cityId: wallet?.cityId || null,
@@ -142,6 +148,59 @@ export class SystemAccountsService {
     };
   }
 
+  /**
+   * 构建区域代码到名称的映射
+   */
+  private async buildRegionNameMap(): Promise<Map<string, string>> {
+    const [provinces, cities] = await Promise.all([
+      this.prisma.syncedProvince.findMany({ select: { code: true, name: true } }),
+      this.prisma.syncedCity.findMany({ select: { code: true, name: true } }),
+    ]);
+
+    const map = new Map<string, string>();
+    for (const province of provinces) {
+      map.set(province.code, province.name);
+    }
+    for (const city of cities) {
+      map.set(city.code, city.name);
+    }
+    return map;
+  }
+
+  /**
+   * 根据账户类型和区域代码获取显示名称
+   */
+  private getDisplayName(
+    accountType: string,
+    regionCode: string | null,
+    regionNameMap: Map<string, string>,
+  ): string {
+    // 基础账户类型名称
+    const baseNames: Record<string, string> = {
+      OPERATION: '运营账户',
+      HEADQUARTERS: '总部账户',
+      PROVINCE: '省公司账户',
+      CITY: '市公司账户',
+    };
+
+    if (!regionCode) {
+      return baseNames[accountType] || accountType;
+    }
+
+    // 根据区域代码查找名称
+    const regionName = regionNameMap.get(regionCode);
+    if (regionName) {
+      if (accountType === 'PROVINCE') {
+        return `${regionName}省公司`;
+      } else if (accountType === 'CITY') {
+        return `${regionName}市公司`;
+      }
+    }
+
+    // 回退：使用区域代码
+    return `${regionCode}账户`;
+  }
+
   /**
    * 从钱包账户的 code 提取区域代码
    * 例如: "CITY-440100" -> "440100", "PROVINCE-440000" -> "440000"