feat(admin): web admin panel — user CRUD, role assignment, system health (#150)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

apps/gateway/src/app.module.ts

@@ -16,6 +16,7 @@ import { LogModule } from './log/log.module.js';
 import { SkillsModule } from './skills/skills.module.js';
 import { PluginModule } from './plugin/plugin.module.js';
 import { McpModule } from './mcp/mcp.module.js';
+import { AdminModule } from './admin/admin.module.js';
 import { ThrottlerGuard, ThrottlerModule } from '@nestjs/throttler';
 
 @Module({
@@ -36,6 +37,7 @@ import { ThrottlerGuard, ThrottlerModule } from '@nestjs/throttler';
     SkillsModule,
     PluginModule,
     McpModule,
+    AdminModule,
   ],
   controllers: [HealthController],
   providers: [