feat(api): add equipment API (GET/POST /api/equipment)

apps/api/src/equipment/equipment.controller.ts

@@ -0,0 +1,19 @@
+import { Body, Controller, Get, Post } from '@nestjs/common';
+import { DEMO_CHARACTER_ID } from '../demo/demo-character.constants';
+import { EquipItemDto } from './dto/equip-item.dto';
+import { EquipmentResponseDto, EquipmentService } from './equipment.service';
+
+@Controller('equipment')
+export class EquipmentController {
+  constructor(private readonly equipmentService: EquipmentService) {}
+
+  @Get()
+  getEquipment(): Promise<EquipmentResponseDto> {
+    return this.equipmentService.getEquipment(DEMO_CHARACTER_ID);
+  }
+
+  @Post()
+  equip(@Body() request: EquipItemDto): Promise<EquipmentResponseDto> {
+    return this.equipmentService.equip(DEMO_CHARACTER_ID, request.characterItemId);
+  }
+}