feat(pre-planting): 预种权益流水备注添加[预种]前缀

wallet-service 新增 prePlantingPrefix 私有方法，
当 FundAllocationItem.metadata.source === 'PRE_PLANTING' 时，
在流水 memo 中添加 "[预种] " 前缀，使用户可区分预种与普通认种权益。

仅影响 pre-planting 新增的分配流水，不修改任何普通认种 memo。

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/services/planting-service/src/pre-planting/api/controllers/internal-pre-planting.controller.ts

@@ -283,6 +283,7 @@ export class InternalPrePlantingController {
             targetId: e.recipientAccountSequence,
             allocationType: e.rightType,
             amount: Number(e.usdtAmount),
+            metadata: { source: 'PRE_PLANTING' },
           })),
         });
 

backend/services/planting-service/src/pre-planting/application/services/pre-planting-reward.service.ts

@@ -109,6 +109,8 @@ export class PrePlantingRewardService {
         targetId: a.recipientAccountSequence,
         allocationType: a.rightType,
         amount: a.amount,
+        // source 标识供 wallet-service 在流水备注中加"[预种]"前缀，与普通认种权益区分
+        metadata: { source: 'PRE_PLANTING' },
       })),
     });
 

backend/services/wallet-service/src/application/services/wallet-application.service.ts

@@ -1038,6 +1038,15 @@ export class WalletApplicationService {
     };
   }
 
+  /**
+   * [新增] 预种来源备注前缀
+   * 当 metadata.source === 'PRE_PLANTING' 时返回 "[预种] "，否则返回空字符串。
+   * 只影响预种权益流水，不修改普通认种的任何备注。
+   */
+  private prePlantingPrefix(allocation: FundAllocationItem): string {
+    return allocation.metadata?.source === 'PRE_PLANTING' ? '[预种] ' : '';
+  }
+
   /**
    * 检查分配是否已存在（幂等性检查）
    * 通过查询流水表判断该订单+账户+分配类型是否已处理
@@ -1117,7 +1126,7 @@ export class WalletApplicationService {
         entryType: LedgerEntryType.REWARD_TO_SETTLEABLE,
         amount,
         refOrderId: orderId,
-        memo: `${allocation.allocationType} allocation (direct settleable)`,
+        memo: `${this.prePlantingPrefix(allocation)}${allocation.allocationType} allocation (direct settleable)`,
         payloadJson: {
           allocationType: allocation.allocationType,
           metadata: allocation.metadata,
@@ -1156,7 +1165,7 @@ export class WalletApplicationService {
         entryType: LedgerEntryType.REWARD_PENDING,
         amount,
         refOrderId: orderId,
-        memo: `${allocation.allocationType} allocation`,
+        memo: `${this.prePlantingPrefix(allocation)}${allocation.allocationType} allocation`,
         payloadJson: {
           allocationType: allocation.allocationType,
           expireAt: expireAt.toISOString(),
@@ -1220,8 +1229,8 @@ export class WalletApplicationService {
       amount,
       refOrderId: orderId,
       memo: isUserAccount
-        ? `${allocation.allocationType} - community authorization allocation (settleable)`
+        ? `${this.prePlantingPrefix(allocation)}${allocation.allocationType} - community authorization allocation (settleable)`
-        : `${allocation.allocationType} - headquarters community allocation (settleable)`,
+        : `${this.prePlantingPrefix(allocation)}${allocation.allocationType} - headquarters community allocation (settleable)`,
       payloadJson: {
         allocationType: allocation.allocationType,
         metadata: allocation.metadata,
@@ -1283,7 +1292,7 @@ export class WalletApplicationService {
       entryType: LedgerEntryType.REWARD_TO_SETTLEABLE,
       amount,
       refOrderId: orderId,
-      memo: `${allocation.allocationType} - region account allocation (settleable)`,
+      memo: `${this.prePlantingPrefix(allocation)}${allocation.allocationType} - region account allocation (settleable)`,
       payloadJson: {
         allocationType: allocation.allocationType,
         metadata: allocation.metadata,
@@ -1343,7 +1352,7 @@ export class WalletApplicationService {
       entryType: LedgerEntryType.SYSTEM_ALLOCATION,
       amount,
       refOrderId: orderId,
-      memo: `${allocation.allocationType} - system account allocation`,
+      memo: `${this.prePlantingPrefix(allocation)}${allocation.allocationType} - system account allocation`,
       payloadJson: {
         allocationType: allocation.allocationType,
         metadata: allocation.metadata,