fix: 加固聊天限流与安全策略串行化

apps/api/src/conversation/conversation.module.ts

@@ -2,6 +2,7 @@ import { Module } from "@nestjs/common";
 import { AuthModule } from "../auth/auth.module.js";
 import { DatabaseModule } from "../database/database.module.js";
 import { RedisModule } from "../redis/redis.module.js";
+import { SafetyModule } from "../safety/safety.module.js";
 import { ChatGateway } from "./chat.gateway.js";
 import { ChatRateLimiter } from "./chat-rate-limiter.js";
 import { ConversationController } from "./conversation.controller.js";
@@ -10,7 +11,7 @@ import { CHAT_PUBLISHER, OutboxMessageRelay } from "./outbox-message-relay.js";
 import { StateChangingOriginGuard } from "./state-changing-origin.guard.js";
 
 @Module({
-  imports: [DatabaseModule, RedisModule, AuthModule],
+  imports: [DatabaseModule, RedisModule, AuthModule, SafetyModule],
   controllers: [ConversationController],
   providers: [
     ConversationService,