fix(api): Add AuthModule import to modules using AuthGuard

Modules using AuthGuard in their controllers need to import AuthModule
to make AuthService available for dependency injection.

Fixed:
- ActivityModule
- WorkspaceSettingsModule

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

apps/api/src/activity/activity.module.ts

@@ -2,12 +2,13 @@ import { Module } from "@nestjs/common";
 import { ActivityController } from "./activity.controller";
 import { ActivityService } from "./activity.service";
 import { PrismaModule } from "../prisma/prisma.module";
+import { AuthModule } from "../auth/auth.module";
 
 /**
  * Module for activity logging and audit trail functionality
  */
 @Module({
-  imports: [PrismaModule],
+  imports: [PrismaModule, AuthModule],
   controllers: [ActivityController],
   providers: [ActivityService],
   exports: [ActivityService],

apps/api/src/workspace-settings/workspace-settings.module.ts

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