feat: add conversation management — sessionId + X-Hermes-Session-Id + CRUD

prisma/migrations/20260522103602_add_admin_conversation/migration.sql

@@ -0,0 +1,18 @@
+-- CreateTable
+CREATE TABLE `AdminConversation` (
+    `id` VARCHAR(191) NOT NULL,
+    `adminUserId` VARCHAR(191) NOT NULL,
+    `title` VARCHAR(200) NOT NULL DEFAULT '新对话',
+    `hermesSessionId` VARCHAR(64) NOT NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+    `deletedAt` DATETIME(3) NULL,
+
+    UNIQUE INDEX `AdminConversation_hermesSessionId_key`(`hermesSessionId`),
+    INDEX `AdminConversation_adminUserId_idx`(`adminUserId`),
+    INDEX `AdminConversation_hermesSessionId_idx`(`hermesSessionId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- AddForeignKey
+ALTER TABLE `AdminConversation` ADD CONSTRAINT `AdminConversation_adminUserId_fkey` FOREIGN KEY (`adminUserId`) REFERENCES `AdminUser`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;

prisma/schema.prisma

@@ -732,6 +732,7 @@ model AdminUser {
   deletedAt        DateTime?
 
   sessions         AdminSession[]
+  conversations    AdminConversation[]
   auditLogs        AdminAuditLog[]
 
   @@index([email])
@@ -793,3 +794,18 @@ model MembershipPlan {
   createdAt             DateTime  @default(now())
   updatedAt             DateTime  @updatedAt
 }
+
+model AdminConversation {
+  id              String    @id @default(cuid())
+  adminUserId     String
+  title           String    @default("新对话") @db.VarChar(200)
+  hermesSessionId String    @unique @db.VarChar(64)
+  createdAt       DateTime  @default(now())
+  updatedAt       DateTime  @updatedAt
+  deletedAt       DateTime?
+
+  adminUser       AdminUser @relation(fields: [adminUserId], references: [id])
+
+  @@index([adminUserId])
+  @@index([hermesSessionId])
+}

src/app.module.ts

@@ -15,6 +15,7 @@ import { AuthModule } from './modules/auth/auth.module';
 import { AdminAuthModule } from './modules/admin-auth/admin-auth.module';
 import { AdminDashboardModule } from './modules/admin-dashboard/admin-dashboard.module';
 import { AdminUsersModule } from './modules/admin-users/admin-users.module';
+import { AdminConversationModule } from './modules/admin-conversation/admin-conversation.module';
 import { AdminAiChatModule } from './modules/admin-ai-chat/admin-ai-chat.module';
 import { AdminAuditLogModule } from './modules/admin-audit-log/admin-audit-log.module';
 import { UsersModule } from './modules/users/users.module';
@@ -88,6 +89,7 @@ import appleConfig from './config/apple.config';
     AdminAuthModule,
     AdminDashboardModule,
     AdminUsersModule,
+    AdminConversationModule,
     AdminAiChatModule,
     AdminAuditLogModule,
     UsersModule,

src/modules/admin-ai-chat/admin-ai-chat.controller.ts

@@ -1,5 +1,5 @@
-import { ApiTags, ApiOperation, ApiBearerAuth } from '@nestjs/swagger';
-import { Controller, Post, Get, Body, UseGuards } from '@nestjs/common';
+import { ApiTags, ApiOperation, ApiBearerAuth } from '@nestjs/swagger';
+import { Controller, Post, Get, Body, Req, UseGuards } from '@nestjs/common';
 import { AdminAiChatService } from './admin-ai-chat.service';
 import { AiChatDto } from './dto/ai-chat.dto';
 import { AdminAuthGuard } from '../../common/guards/admin-auth.guard';
@@ -17,8 +17,8 @@ export class AdminAiChatController {
   @AdminRoles('SUPER_ADMIN' as AdminRole)
   @ApiBearerAuth()
   @ApiOperation({ summary: 'AI 对话（仅超级管理员）' })
-  async chat(@Body() dto: AiChatDto) {
-    return this.aiChatService.chat(dto);
+  async chat(@Body() dto: AiChatDto, @Req() req: any) {
+    return this.aiChatService.chat(dto, req.adminUser.id);
   }
 
   @Get('dashboard')

src/modules/admin-ai-chat/admin-ai-chat.module.ts

@@ -3,8 +3,10 @@ import { AdminAiChatController } from './admin-ai-chat.controller';
 import { AdminAiChatService } from './admin-ai-chat.service';
 import { AdminAuthGuard } from '../../common/guards/admin-auth.guard';
 import { AdminRolesGuard } from '../../common/guards/admin-roles.guard';
+import { AdminConversationModule } from '../admin-conversation/admin-conversation.module';
 
 @Module({
+  imports: [AdminConversationModule],
   controllers: [AdminAiChatController],
   providers: [AdminAiChatService, AdminAuthGuard, AdminRolesGuard],
 })

src/modules/admin-ai-chat/admin-ai-chat.service.ts

@@ -1,5 +1,6 @@
 import { Injectable, Logger } from '@nestjs/common';
 import type { AiChatDto } from './dto/ai-chat.dto';
+import { AdminConversationService } from '../admin-conversation/admin-conversation.service';
 
 const HERMES_API_URL = 'http://10.2.0.7:8642/v1/chat/completions';
 const HERMES_API_KEY = 'zhixi-hermes-key-2026';
@@ -8,20 +9,38 @@ const HERMES_API_KEY = 'zhixi-hermes-key-2026';
 export class AdminAiChatService {
   private readonly logger = new Logger(AdminAiChatService.name);
 
-  constructor() {}
+  constructor(private readonly conversationService: AdminConversationService) {}
 
-  async chat(dto: AiChatDto) {
-    return await this.callHermes(dto.messages);
+  async chat(dto: AiChatDto, adminUserId: string) {
+    const sessionId = dto.conversationId
+      ? await this.conversationService.getSessionId(dto.conversationId, adminUserId)
+      : null;
+
+    // Auto-create conversation if none provided
+    const conversationId = dto.conversationId
+      ?? (await this.conversationService.create(adminUserId)).id;
+
+    const result = await this.callHermes(dto.messages, sessionId);
+
+    return { ...result, conversationId };
   }
 
-  private async callHermes(messages: Array<{ role: string; content: string }>) {
+  private async callHermes(
+    messages: Array<{ role: string; content: string }>,
+    sessionId: string | null,
+  ) {
     const start = Date.now();
-    const resp = await fetch(HERMES_API_URL, {
-      method: 'POST',
-      headers: {
+    const headers: Record<string, string> = {
       'Content-Type': 'application/json',
       Authorization: 'Bearer ' + HERMES_API_KEY,
-      },
+    };
+    if (sessionId) {
+      headers['X-Hermes-Session-Id'] = sessionId;
+    }
+
+    const resp = await fetch(HERMES_API_URL, {
+      method: 'POST',
+      headers,
       body: JSON.stringify({
         model: 'hermes-agent',
         messages,

src/modules/admin-ai-chat/dto/ai-chat.dto.ts

@@ -1,4 +1,4 @@
-import { IsString, IsArray, ValidateNested, IsOptional, IsIn, MinLength } from 'class-validator';
+import { IsString, IsArray, ValidateNested, IsOptional, IsIn, MinLength } from 'class-validator';
 import { Type } from 'class-transformer';
 import { ApiProperty } from '@nestjs/swagger';
 
@@ -21,7 +21,8 @@ export class AiChatDto {
   @Type(() => ChatMessageDto)
   messages: ChatMessageDto[];
 
-  @ApiProperty({ required: false, default: false })
+  @ApiProperty({ required: false })
   @IsOptional()
-  stream?: boolean;
+  @IsString()
+  conversationId?: string;
 }

src/modules/admin-conversation/admin-conversation.controller.ts

@@ -0,0 +1,35 @@
+import { Controller, Get, Post, Patch, Delete, Param, Body, Req, UseGuards } from '@nestjs/common';
+import { ApiTags, ApiBearerAuth } from '@nestjs/swagger';
+import { AdminConversationService } from './admin-conversation.service';
+import { CreateConversationDto, UpdateConversationDto } from './dto';
+import { AdminAuthGuard } from '../../common/guards/admin-auth.guard';
+
+@ApiTags('admin-conversation')
+@Controller('admin-api/conversations')
+@UseGuards(AdminAuthGuard)
+@ApiBearerAuth()
+export class AdminConversationController {
+  constructor(private readonly svc: AdminConversationService) {}
+
+  @Get()
+  async list(@Req() req: any) {
+    return this.svc.list(req.adminUser.id);
+  }
+
+  @Post()
+  async create(@Req() req: any, @Body() dto: CreateConversationDto) {
+    return this.svc.create(req.adminUser.id, dto.title);
+  }
+
+  @Patch(':id')
+  async update(@Req() req: any, @Param('id') id: string, @Body() dto: UpdateConversationDto) {
+    await this.svc.update(id, req.adminUser.id, dto.title!);
+    return { success: true };
+  }
+
+  @Delete(':id')
+  async delete(@Req() req: any, @Param('id') id: string) {
+    await this.svc.delete(id, req.adminUser.id);
+    return { success: true };
+  }
+}

src/modules/admin-conversation/admin-conversation.module.ts

@@ -0,0 +1,11 @@
+import { Module } from '@nestjs/common';
+import { AdminConversationController } from './admin-conversation.controller';
+import { AdminConversationService } from './admin-conversation.service';
+import { PrismaService } from '../../infrastructure/database/prisma.service';
+
+@Module({
+  controllers: [AdminConversationController],
+  providers: [AdminConversationService, PrismaService],
+  exports: [AdminConversationService],
+})
+export class AdminConversationModule {}

src/modules/admin-conversation/admin-conversation.service.ts

@@ -0,0 +1,46 @@
+import { Injectable } from '@nestjs/common';
+import { PrismaService } from '../../infrastructure/database/prisma.service';
+import { randomUUID } from 'crypto';
+
+@Injectable()
+export class AdminConversationService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  async list(adminUserId: string) {
+    return this.prisma.adminConversation.findMany({
+      where: { adminUserId, deletedAt: null },
+      orderBy: { updatedAt: 'desc' },
+      select: { id: true, title: true, createdAt: true, updatedAt: true },
+    });
+  }
+
+  async create(adminUserId: string, title?: string) {
+    const hermesSessionId = randomUUID();
+    return this.prisma.adminConversation.create({
+      data: { adminUserId, hermesSessionId, title: title || '新对话' },
+      select: { id: true, title: true, hermesSessionId: true, createdAt: true },
+    });
+  }
+
+  async update(id: string, adminUserId: string, title: string) {
+    return this.prisma.adminConversation.updateMany({
+      where: { id, adminUserId, deletedAt: null },
+      data: { title },
+    });
+  }
+
+  async delete(id: string, adminUserId: string) {
+    return this.prisma.adminConversation.updateMany({
+      where: { id, adminUserId, deletedAt: null },
+      data: { deletedAt: new Date() },
+    });
+  }
+
+  async getSessionId(conversationId: string, adminUserId: string) {
+    const conv = await this.prisma.adminConversation.findFirst({
+      where: { id: conversationId, adminUserId, deletedAt: null },
+      select: { id: true, hermesSessionId: true },
+    });
+    return conv?.hermesSessionId ?? null;
+  }
+}

src/modules/admin-conversation/dto/index.ts

@@ -0,0 +1,7 @@
+export class CreateConversationDto {
+  title?: string;
+}
+
+export class UpdateConversationDto {
+  title?: string;
+}