feat: drop Upbit/Bybit and reduce to Binance-only foundation

CLAUDE.md

@@ -1,3 +1,34 @@
+## Coding behavior
+
+이 저장소의 모든 작업에 적용되는 행동 규칙. 속도보다 신중함에 가중을 둠.
+사소한 작업은 판단에 맡김.
+
+### 1. Think before coding
+
+- 가정은 명시적으로 드러내라. 불확실하면 물어라.
+- 해석이 여러 개면 모두 제시하라. 침묵하고 고르지 말 것.
+- 더 단순한 접근이 보이면 말하라. 필요하면 사용자 의도에 반대하라.
+
+### 2. Simplicity first
+
+- 문제를 푸는 최소한의 코드만.
+- 요청하지 않은 기능/추상화/에러 처리 금지.
+- 200줄을 50줄로 줄일 수 있으면 다시 써라.
+
+### 3. Surgical changes
+
+- 작업이 요구하는 것만 건드려라.
+- 인접한 코드/주석/포맷을 "개선"하지 마라.
+- 기존 스타일을 따라라. 무관한 dead code는 언급만, 삭제는 하지 마라.
+- 본인 변경이 만든 고아 import/변수만 제거하라.
+
+### 4. Goal-driven execution
+
+- 모든 작업을 검증 가능한 성공 기준으로 번역한 후 코딩 시작.
+  - "validation 추가" → "잘못된 입력에 대한 테스트가 통과한다."
+  - "버그 수정" → "재현 테스트가 통과한다."
+  - "X 리팩터" → "리팩터 전후 테스트가 모두 통과한다."
+
 ## Skill routing
 
 When the user's request matches an available skill, ALWAYS invoke it using the Skill

apps/api-server/docker-compose.dev.yml

@@ -8,7 +8,7 @@ services:
     volumes:
       - ../../:/app
       - /app/node_modules
-      - ${LOG_DIR:-../../logs}/api-server:/app/logs
+      - api_server_logs:/app/logs
     expose:
       - '3000'
     depends_on:
@@ -35,3 +35,6 @@ services:
 networks:
   coin-net:
     name: coin-net
+
+volumes:
+  api_server_logs:

apps/api-server/e2e/orders.e2e-test.ts

@@ -9,7 +9,7 @@ describe('Orders E2E', () => {
       method: 'POST',
       cookies,
       body: JSON.stringify({
-        exchange: 'upbit',
+        exchange: 'binance',
         symbol: 'KRW-BTC',
         side: 'buy',
         type: 'market',

apps/api-server/src/activity/activity.service.ts

@@ -3,7 +3,7 @@ import { PrismaService } from '../prisma/prisma.service';
 
 export interface ActivityItem {
   id: string;
-  type: 'order' | 'strategy_signal' | 'strategy_order' | 'risk_blocked' | 'login';
+  type: 'order' | 'login';
   title: string;
   description: string;
   exchange?: string;
@@ -25,8 +25,7 @@ export class ActivityService {
   ): Promise<{ items: ActivityItem[]; nextCursor: string | null }> {
     const cursorDate = cursor ? new Date(cursor) : undefined;
 
-    // Fetch from all 3 sources in parallel
-    const [orders, strategyLogs, logins] = await Promise.all([
+    const [orders, logins] = await Promise.all([
       this.prisma.order.findMany({
         where: {
           userId,
@@ -35,15 +34,6 @@ export class ActivityService {
         orderBy: { createdAt: 'desc' },
         take: limit + 1,
       }),
-      this.prisma.strategyLog.findMany({
-        where: {
-          strategy: { userId },
-          ...(cursorDate ? { createdAt: { lt: cursorDate } } : {}),
-        },
-        include: { strategy: { select: { name: true, exchange: true, symbol: true, id: true } } },
-        orderBy: { createdAt: 'desc' },
-        take: limit + 1,
-      }),
       this.prisma.loginHistory.findMany({
         where: {
           userId,
@@ -54,7 +44,6 @@ export class ActivityService {
       }),
     ]);
 
-    // Map to unified type
     const orderItems: ActivityItem[] = orders.map((o) => ({
       id: `order-${o.id}`,
       type: 'order' as const,
@@ -68,28 +57,6 @@ export class ActivityService {
       createdAt: o.createdAt,
     }));
 
-    const strategyItems: ActivityItem[] = strategyLogs.map((log) => {
-      const details = log.details as Record<string, unknown>;
-      const action = log.action;
-      let type: ActivityItem['type'] = 'strategy_signal';
-      if (action === 'order_placed') type = 'strategy_order';
-      if (action === 'risk_blocked') type = 'risk_blocked';
-
-      return {
-        id: `strategy-${log.id}`,
-        type,
-        title: `${log.strategy.name} — ${action.replace('_', ' ')}`,
-        description: log.signal
-          ? `${log.signal.toUpperCase()} @ ${details.price || ''} (${details.reason || ''})`
-          : String(details.reason || details.error || ''),
-        exchange: log.strategy.exchange,
-        symbol: log.strategy.symbol,
-        side: log.signal || undefined,
-        link: `/strategies/${log.strategy.id}`,
-        createdAt: log.createdAt,
-      };
-    });
-
     const loginItems: ActivityItem[] = logins.map((l) => ({
       id: `login-${l.id}`,
       type: 'login' as const,
@@ -100,8 +67,7 @@ export class ActivityService {
       createdAt: l.createdAt,
     }));
 
-    // Merge sort by createdAt desc
-    const all = [...orderItems, ...strategyItems, ...loginItems].sort(
+    const all = [...orderItems, ...loginItems].sort(
       (a, b) => b.createdAt.getTime() - a.createdAt.getTime(),
     );
 

apps/api-server/src/app.module.ts

@@ -10,11 +10,9 @@ import { PrismaModule } from './prisma/prisma.module';
 import { AuthModule } from './auth/auth.module';
 import { ExchangeKeysModule } from './exchange-keys/exchange-keys.module';
 import { OrdersModule } from './orders/orders.module';
-import { StrategiesModule } from './strategies/strategies.module';
 import { NotificationsModule } from './notifications/notifications.module';
 import { PortfolioModule } from './portfolio/portfolio.module';
 import { ActivityModule } from './activity/activity.module';
-import { FlowsModule } from './flows/flows.module';
 import { JwtAuthGuard } from './auth/guards/jwt-auth.guard';
 
 @Module({
@@ -47,11 +45,9 @@ import { JwtAuthGuard } from './auth/guards/jwt-auth.guard';
     MarketsModule,
     ExchangeKeysModule,
     OrdersModule,
-    StrategiesModule,
     NotificationsModule,
     PortfolioModule,
     ActivityModule,
-    FlowsModule,
   ],
   controllers: [AppController],
   providers: [

apps/api-server/src/exchange-keys/commands/create-exchange-key.handler.test.ts

@@ -39,13 +39,13 @@ describe('CreateExchangeKeyHandler', () => {
   it('암호화된 자격증명으로 거래소 키를 생성/upsert해야 한다', async () => {
     mockPrisma.exchangeKey.upsert.mockResolvedValue({
       id: 'key-1',
-      exchange: 'upbit',
+      exchange: 'binance',
       createdAt: new Date(),
     });
 
     const result = await handler.execute(
       new CreateExchangeKeyCommand('user-1', {
-        exchange: 'upbit',
+        exchange: 'binance',
         apiKey: 'my-api-key',
         secretKey: 'my-secret',
       } as never),
@@ -65,7 +65,7 @@ describe('CreateExchangeKeyHandler', () => {
     await expect(
       handler.execute(
         new CreateExchangeKeyCommand('user-1', {
-          exchange: 'upbit',
+          exchange: 'binance',
           apiKey: 'key',
           secretKey: 'secret',
         } as never),
@@ -79,7 +79,7 @@ describe('CreateExchangeKeyHandler', () => {
     await expect(
       handler.execute(
         new CreateExchangeKeyCommand('user-1', {
-          exchange: 'upbit',
+          exchange: 'binance',
           apiKey: 'bad-key',
           secretKey: 'bad-secret',
         } as never),

apps/api-server/src/exchange-keys/commands/create-exchange-key.handler.ts

@@ -3,14 +3,12 @@ import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
 import { ConfigService } from '@nestjs/config';
 import { PrismaService } from '../../prisma/prisma.service';
 import { encrypt } from '@coin/utils';
-import { UpbitRest, BinanceRest, BybitRest, IExchangeRest } from '@coin/exchange-adapters';
+import { BinanceRest, IExchangeRest } from '@coin/exchange-adapters';
 import type { ExchangeId, ExchangeCredentials } from '@coin/types';
 import { CreateExchangeKeyCommand } from './create-exchange-key.command';
 
 const REST_ADAPTERS: Record<ExchangeId, () => IExchangeRest> = {
-  upbit: () => new UpbitRest(),
   binance: () => new BinanceRest(),
-  bybit: () => new BybitRest(),
 };
 
 @CommandHandler(CreateExchangeKeyCommand)

apps/api-server/src/exchange-keys/dto/create-exchange-key.dto.ts

@@ -5,9 +5,9 @@ export class CreateExchangeKeyDto {
   @ApiProperty({
     description: '대상 거래소',
     example: 'binance',
-    enum: ['upbit', 'binance', 'bybit'],
+    enum: ['binance'],
   })
-  @IsIn(['upbit', 'binance', 'bybit'])
+  @IsIn(['binance'])
   exchange!: string;
 
   @ApiProperty({ description: '거래소 API 키', example: 'aB3dEfGhIjKlMnOpQrStUvWxYz012345' })

apps/api-server/src/exchange-keys/queries/get-balances.handler.ts

@@ -3,14 +3,12 @@ import { IQueryHandler, QueryHandler } from '@nestjs/cqrs';
 import { ConfigService } from '@nestjs/config';
 import { PrismaService } from '../../prisma/prisma.service';
 import { decrypt } from '@coin/utils';
-import { UpbitRest, BinanceRest, BybitRest, IExchangeRest } from '@coin/exchange-adapters';
+import { BinanceRest, IExchangeRest } from '@coin/exchange-adapters';
 import type { ExchangeId, ExchangeCredentials } from '@coin/types';
 import { GetBalancesQuery } from './get-balances.query';
 
 const REST_ADAPTERS: Record<ExchangeId, () => IExchangeRest> = {
-  upbit: () => new UpbitRest(),
   binance: () => new BinanceRest(),
-  bybit: () => new BybitRest(),
 };
 
 @QueryHandler(GetBalancesQuery)

apps/api-server/src/exchange-keys/queries/get-exchange-keys.handler.test.ts

@@ -13,7 +13,7 @@ describe('GetExchangeKeysHandler', () => {
   });
 
   it('민감한 데이터 없이 거래소 키를 반환해야 한다', async () => {
-    const keys = [{ id: 'key-1', exchange: 'upbit', createdAt: new Date() }];
+    const keys = [{ id: 'key-1', exchange: 'binance', createdAt: new Date() }];
     mockPrisma.exchangeKey.findMany.mockResolvedValue(keys);
 
     const result = await handler.execute(new GetExchangeKeysQuery('user-1'));

apps/api-server/src/exchange-keys/queries/get-markets.handler.ts

@@ -1,14 +1,12 @@
 import { NotFoundException } from '@nestjs/common';
 import { IQueryHandler, QueryHandler } from '@nestjs/cqrs';
 import { PrismaService } from '../../prisma/prisma.service';
-import { UpbitRest, BinanceRest, BybitRest, IExchangeRest } from '@coin/exchange-adapters';
+import { BinanceRest, IExchangeRest } from '@coin/exchange-adapters';
 import type { ExchangeId } from '@coin/types';
 import { GetMarketsQuery } from './get-markets.query';
 
 const REST_ADAPTERS: Record<ExchangeId, () => IExchangeRest> = {
-  upbit: () => new UpbitRest(),
   binance: () => new BinanceRest(),
-  bybit: () => new BybitRest(),
 };
 
 @QueryHandler(GetMarketsQuery)

apps/api-server/src/exchange-keys/queries/get-open-orders.handler.ts

@@ -3,14 +3,12 @@ import { IQueryHandler, QueryHandler } from '@nestjs/cqrs';
 import { ConfigService } from '@nestjs/config';
 import { PrismaService } from '../../prisma/prisma.service';
 import { decrypt } from '@coin/utils';
-import { UpbitRest, BinanceRest, BybitRest, IExchangeRest } from '@coin/exchange-adapters';
+import { BinanceRest, IExchangeRest } from '@coin/exchange-adapters';
 import type { ExchangeId, ExchangeCredentials } from '@coin/types';
 import { GetOpenOrdersQuery } from './get-open-orders.query';
 
 const REST_ADAPTERS: Record<ExchangeId, () => IExchangeRest> = {
-  upbit: () => new UpbitRest(),
   binance: () => new BinanceRest(),
-  bybit: () => new BybitRest(),
 };
 
 @QueryHandler(GetOpenOrdersQuery)