refactor(trading): 价格数据源从 SharePool 切换到做市商 cashBalance

积分股价格公式中的"绿积分"(分子)本质上就是做市商的积分值余额,
SharePool 是多余的抽象层。此次改动将价格计算的数据源从独立的
SharePool 表切换到做市商的 TradingAccount.cashBalance。

主要变更:
- price.service.ts: 通过 PrismaService 直接读取做市商 cashBalance
  作为价格公式的分子(绿积分),移除 SharePoolRepository 依赖
- asset.service.ts: getMarketOverview() 同步切换数据源
- order.service.ts: 10%交易手续费从 sharePoolRepository.feeIn()
  改为 increment 回做市商的 TradingAccount,手续费自然留存在池中
- burn.service.ts: 移除 SharePool 初始化逻辑和依赖
- infrastructure.module.ts: 移除 SharePoolRepository 注册和导出
- seed.ts: 移除 SharePool 57.6亿初始化

价格公式、10%手续费扣除、销毁机制均保持不变,仅切换数据源。
SharePool 表和 repository 文件保留在磁盘上供历史数据参考。

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

backend/services/trading-service/prisma/seed.ts

@@ -93,22 +93,7 @@ async function main() {
     console.log('Black hole account already exists');
   }
 
-  // 4. 初始化积分股池（绿积分池）
+  // 4. 绿积分（价格分子）现在由做市商的 cashBalance 提供，不再需要独立的 SharePool
-  // 初始绿积分为 57.6亿，使初始价格约为 0.576 (57.6亿 / 100.02亿 ≈ 0.576)
-  const INITIAL_GREEN_POINTS = '5760000000'; // 57.6亿
-  const existingSharePool = await prisma.sharePool.findFirst();
-  if (!existingSharePool) {
-    await prisma.sharePool.create({
-      data: {
-        greenPoints: new Decimal(INITIAL_GREEN_POINTS),
-        totalInflow: new Decimal(INITIAL_GREEN_POINTS),
-        totalOutflow: new Decimal(0),
-      },
-    });
-    console.log(`Created share pool with initial green points: ${INITIAL_GREEN_POINTS} (57.6亿)`);
-  } else {
-    console.log('Share pool already exists');
-  }
 
   // 5. 初始化流通池
   const existingCirculationPool = await prisma.circulationPool.findFirst();

backend/services/trading-service/src/application/services/asset.service.ts

@@ -4,7 +4,7 @@ import { TradingCalculatorService } from '../../domain/services/trading-calculat
 import { TradingAccountRepository } from '../../infrastructure/persistence/repositories/trading-account.repository';
 import { BlackHoleRepository } from '../../infrastructure/persistence/repositories/black-hole.repository';
 import { CirculationPoolRepository } from '../../infrastructure/persistence/repositories/circulation-pool.repository';
-import { SharePoolRepository } from '../../infrastructure/persistence/repositories/share-pool.repository';
+import { PrismaService } from '../../infrastructure/persistence/prisma/prisma.service';
 import { PriceService } from './price.service';
 import { Money } from '../../domain/value-objects/money.vo';
 import Decimal from 'decimal.js';
@@ -59,11 +59,14 @@ export class AssetService {
   private readonly calculator = new TradingCalculatorService();
   private readonly miningServiceUrl: string;
 
+  // 缓存做市商 accountSequence
+  private mmAccountSequence: string | null = null;
+
   constructor(
     private readonly tradingAccountRepository: TradingAccountRepository,
     private readonly blackHoleRepository: BlackHoleRepository,
     private readonly circulationPoolRepository: CirculationPoolRepository,
-    private readonly sharePoolRepository: SharePoolRepository,
+    private readonly prisma: PrismaService,
     private readonly priceService: PriceService,
     private readonly configService: ConfigService,
   ) {
@@ -218,6 +221,24 @@ export class AssetService {
     };
   }
 
+  /**
+   * 获取做市商积分值余额（即价格公式中的"绿积分"）
+   */
+  private async getGreenPoints(): Promise<Money> {
+    if (!this.mmAccountSequence) {
+      const config = await this.prisma.marketMakerConfig.findUnique({
+        where: { name: 'MAIN_MARKET_MAKER' },
+      });
+      this.mmAccountSequence = config?.accountSequence || null;
+    }
+    if (!this.mmAccountSequence) return Money.zero();
+
+    const account = await this.prisma.tradingAccount.findUnique({
+      where: { accountSequence: this.mmAccountSequence },
+    });
+    return account ? new Money(account.cashBalance) : Money.zero();
+  }
+
   /**
    * 获取市场概览
    */
@@ -232,13 +253,11 @@ export class AssetService {
     burnTarget: string;
     burnProgress: string;
   }> {
-    const [sharePool, blackHole, circulationPool] = await Promise.all([
+    const [greenPoints, blackHole, circulationPool] = await Promise.all([
-      this.sharePoolRepository.getPool(),
+      this.getGreenPoints(),
       this.blackHoleRepository.getBlackHole(),
       this.circulationPoolRepository.getPool(),
     ]);
-
-    const greenPoints = sharePool?.greenPoints || Money.zero();
     const blackHoleAmount = blackHole?.totalBurned || Money.zero();
     const circulationPoolAmount = circulationPool?.totalShares || Money.zero();
 

backend/services/trading-service/src/application/services/burn.service.ts

@@ -2,7 +2,6 @@ import { Injectable, Logger } from '@nestjs/common';
 import { TradingCalculatorService } from '../../domain/services/trading-calculator.service';
 import { BlackHoleRepository } from '../../infrastructure/persistence/repositories/black-hole.repository';
 import { CirculationPoolRepository } from '../../infrastructure/persistence/repositories/circulation-pool.repository';
-import { SharePoolRepository } from '../../infrastructure/persistence/repositories/share-pool.repository';
 import { TradingConfigRepository } from '../../infrastructure/persistence/repositories/trading-config.repository';
 import { OutboxRepository } from '../../infrastructure/persistence/repositories/outbox.repository';
 import { RedisService } from '../../infrastructure/redis/redis.service';
@@ -39,7 +38,6 @@ export class BurnService {
   constructor(
     private readonly blackHoleRepository: BlackHoleRepository,
     private readonly circulationPoolRepository: CirculationPoolRepository,
-    private readonly sharePoolRepository: SharePoolRepository,
     private readonly tradingConfigRepository: TradingConfigRepository,
     private readonly outboxRepository: OutboxRepository,
     private readonly redis: RedisService,
@@ -243,11 +241,10 @@ export class BurnService {
    * 初始化交易系统（黑洞、配置、积分股池、流通池）
    */
   async initialize(): Promise<void> {
-    const [existingConfig, existingBlackHole, existingSharePool, existingCirculationPool] =
+    const [existingConfig, existingBlackHole, existingCirculationPool] =
       await Promise.all([
         this.tradingConfigRepository.getConfig(),
         this.blackHoleRepository.getBlackHole(),
-        this.sharePoolRepository.getPool(),
         this.circulationPoolRepository.getPool(),
       ]);
 
@@ -263,13 +260,7 @@ export class BurnService {
       this.logger.log('Black hole initialized');
     }
 
-    // 初始化积分股池（绿积分池），初始值 57.6亿
+    // 绿积分（价格分子）现在由做市商的 cashBalance 提供，不再需要独立的 SharePool
-    // 使初始价格约为 0.576 (57.6亿 / 100.02亿 ≈ 0.576)
-    if (!existingSharePool) {
-      const initialGreenPoints = new Money('5760000000'); // 57.6亿
-      await this.sharePoolRepository.initializePool(initialGreenPoints);
-      this.logger.log(`Share pool initialized with ${initialGreenPoints.toFixed(8)} green points (57.6亿)`);
-    }
 
     // 初始化流通池
     if (!existingCirculationPool) {

backend/services/trading-service/src/application/services/order.service.ts

@@ -2,7 +2,6 @@ import { Injectable, Logger } from '@nestjs/common';
 import { OrderRepository } from '../../infrastructure/persistence/repositories/order.repository';
 import { TradingAccountRepository } from '../../infrastructure/persistence/repositories/trading-account.repository';
 import { CirculationPoolRepository } from '../../infrastructure/persistence/repositories/circulation-pool.repository';
-import { SharePoolRepository } from '../../infrastructure/persistence/repositories/share-pool.repository';
 import { OutboxRepository } from '../../infrastructure/persistence/repositories/outbox.repository';
 import { PrismaService } from '../../infrastructure/persistence/prisma/prisma.service';
 import { RedisService } from '../../infrastructure/redis/redis.service';
@@ -32,7 +31,6 @@ export class OrderService {
     private readonly orderRepository: OrderRepository,
     private readonly accountRepository: TradingAccountRepository,
     private readonly circulationPoolRepository: CirculationPoolRepository,
-    private readonly sharePoolRepository: SharePoolRepository,
     private readonly outboxRepository: OutboxRepository,
     private readonly prisma: PrismaService,
     private readonly redis: RedisService,
@@ -338,21 +336,22 @@ export class OrderService {
           this.logger.warn(`Failed to add shares to circulation pool: ${error}`);
         }
 
-        // 10%手续费进入积分股池（非关键操作，可以在事务外执行）
+        // 10%手续费存入做市商账户（做市商的 cashBalance 即积分股池的绿积分）
         try {
-          await this.sharePoolRepository.feeIn(
+          const mmConfig = await this.prisma.marketMakerConfig.findUnique({
-            tradeFee,
+            where: { name: 'MAIN_MARKET_MAKER' },
-            match.trade.tradeNo,
+          });
-            match.buyOrder.accountSequence,
+          if (mmConfig) {
-            match.sellOrder.accountSequence,
+            await this.prisma.tradingAccount.update({
-            match.buyOrder.source,
+              where: { accountSequence: mmConfig.accountSequence },
-            match.sellOrder.source,
+              data: { cashBalance: { increment: tradeFee.value } },
-          );
+            });
-          this.logger.debug(
+            this.logger.debug(
-            `Trade fee added to share pool: ${tradeFee.toFixed(8)}, tradeNo=${match.trade.tradeNo}`,
+              `Trade fee deposited to market maker: ${tradeFee.toFixed(8)}, tradeNo=${match.trade.tradeNo}`,
-          );
+            );
+          }
         } catch (error) {
-          this.logger.error(`Failed to add trade fee to share pool: ${error}`);
+          this.logger.error(`Failed to deposit trade fee to market maker: ${error}`);
         }
 
         this.logger.log(

backend/services/trading-service/src/application/services/price.service.ts

@@ -1,10 +1,10 @@
 import { Injectable, Logger } from '@nestjs/common';
 import { TradingCalculatorService } from '../../domain/services/trading-calculator.service';
 import { BlackHoleRepository } from '../../infrastructure/persistence/repositories/black-hole.repository';
-import { SharePoolRepository } from '../../infrastructure/persistence/repositories/share-pool.repository';
 import { CirculationPoolRepository } from '../../infrastructure/persistence/repositories/circulation-pool.repository';
 import { PriceSnapshotRepository } from '../../infrastructure/persistence/repositories/price-snapshot.repository';
 import { TradingConfigRepository } from '../../infrastructure/persistence/repositories/trading-config.repository';
+import { PrismaService } from '../../infrastructure/persistence/prisma/prisma.service';
 import { Money } from '../../domain/value-objects/money.vo';
 import Decimal from 'decimal.js';
 
@@ -26,27 +26,47 @@ export class PriceService {
   private readonly logger = new Logger(PriceService.name);
   private readonly calculator = new TradingCalculatorService();
 
+  // 缓存做市商 accountSequence，避免每次查 MarketMakerConfig
+  private mmAccountSequence: string | null = null;
+
   constructor(
     private readonly blackHoleRepository: BlackHoleRepository,
-    private readonly sharePoolRepository: SharePoolRepository,
     private readonly circulationPoolRepository: CirculationPoolRepository,
     private readonly priceSnapshotRepository: PriceSnapshotRepository,
     private readonly tradingConfigRepository: TradingConfigRepository,
+    private readonly prisma: PrismaService,
   ) {}
 
+  /**
+   * 获取做市商积分值余额（即价格公式中的"绿积分"）
+   * 做市商的 cashBalance 就是积分股池的绿积分
+   */
+  private async getGreenPoints(): Promise<Money> {
+    if (!this.mmAccountSequence) {
+      const config = await this.prisma.marketMakerConfig.findUnique({
+        where: { name: 'MAIN_MARKET_MAKER' },
+      });
+      this.mmAccountSequence = config?.accountSequence || null;
+    }
+    if (!this.mmAccountSequence) return Money.zero();
+
+    const account = await this.prisma.tradingAccount.findUnique({
+      where: { accountSequence: this.mmAccountSequence },
+    });
+    return account ? new Money(account.cashBalance) : Money.zero();
+  }
+
   /**
    * 获取当前价格信息
    */
   async getCurrentPrice(): Promise<PriceInfo> {
-    const [sharePool, blackHole, circulationPool, config, firstSnapshot] = await Promise.all([
+    const [greenPoints, blackHole, circulationPool, config, firstSnapshot] = await Promise.all([
-      this.sharePoolRepository.getPool(),
+      this.getGreenPoints(),
       this.blackHoleRepository.getBlackHole(),
       this.circulationPoolRepository.getPool(),
       this.tradingConfigRepository.getConfig(),
       this.priceSnapshotRepository.getFirstSnapshot(),
     ]);
-
-    const greenPoints = sharePool?.greenPoints || Money.zero();
     const blackHoleAmount = blackHole?.totalBurned || Money.zero();
     const circulationPoolAmount = circulationPool?.totalShares || Money.zero();
 
@@ -152,14 +172,12 @@ export class PriceService {
    */
   async createSnapshot(): Promise<void> {
     try {
-      const [sharePool, blackHole, circulationPool, config] = await Promise.all([
+      const [greenPoints, blackHole, circulationPool, config] = await Promise.all([
-        this.sharePoolRepository.getPool(),
+        this.getGreenPoints(),
         this.blackHoleRepository.getBlackHole(),
         this.circulationPoolRepository.getPool(),
         this.tradingConfigRepository.getConfig(),
       ]);
-
-      const greenPoints = sharePool?.greenPoints || Money.zero();
       const blackHoleAmount = blackHole?.totalBurned || Money.zero();
       const circulationPoolAmount = circulationPool?.totalShares || Money.zero();
 

backend/services/trading-service/src/infrastructure/infrastructure.module.ts

@@ -8,7 +8,6 @@ import { OrderRepository } from './persistence/repositories/order.repository';
 import { OutboxRepository } from './persistence/repositories/outbox.repository';
 import { TradingConfigRepository } from './persistence/repositories/trading-config.repository';
 import { BlackHoleRepository } from './persistence/repositories/black-hole.repository';
-import { SharePoolRepository } from './persistence/repositories/share-pool.repository';
 import { CirculationPoolRepository } from './persistence/repositories/circulation-pool.repository';
 import { PriceSnapshotRepository } from './persistence/repositories/price-snapshot.repository';
 import { ProcessedEventRepository } from './persistence/repositories/processed-event.repository';
@@ -53,7 +52,6 @@ import { IdentityClient } from './identity/identity.client';
     OutboxRepository,
     TradingConfigRepository,
     BlackHoleRepository,
-    SharePoolRepository,
     CirculationPoolRepository,
     PriceSnapshotRepository,
     ProcessedEventRepository,
@@ -81,7 +79,6 @@ import { IdentityClient } from './identity/identity.client';
     OutboxRepository,
     TradingConfigRepository,
     BlackHoleRepository,
-    SharePoolRepository,
     CirculationPoolRepository,
     PriceSnapshotRepository,
     ProcessedEventRepository,