fix(api): add AuthModule import to AgentTemplateModule

The AgentTemplateController uses AuthGuard which requires AuthService,
but AgentTemplateModule was not importing AuthModule. This caused the
API to crash during dependency resolution.

apps/api/src/agent-template/agent-template.module.ts

@@ -2,9 +2,10 @@ import { Module } from "@nestjs/common";
 import { AgentTemplateService } from "./agent-template.service";
 import { AgentTemplateController } from "./agent-template.controller";
 import { PrismaModule } from "../prisma/prisma.module";
+import { AuthModule } from "../auth/auth.module";
 
 @Module({
-  imports: [PrismaModule],
+  imports: [PrismaModule, AuthModule],
   controllers: [AgentTemplateController],
   providers: [AgentTemplateService],
   exports: [AgentTemplateService],