feat(server): 添加节目配置文件管理

- 新增 programs.json 配置文件
- 新增 ProgramConfigService 服务
- 新增节目配置 API 接口 (GET/PUT /api/admin/programs)
- 修改 AdminService 使用配置服务替代硬编码
- 添加单元测试

packages/server/src/routes/admin.routes.ts

@@ -2,6 +2,7 @@ import { Router, IRouter } from 'express';
 import multer from 'multer';
 import { participantService } from '../services/participant.service';
 import { prizeConfigService } from '../services/prize-config.service';
+import { programConfigService } from '../services/program-config.service';
 
 const router: IRouter = Router();
 const upload = multer({ storage: multer.memoryStorage() });
@@ -73,6 +74,53 @@ router.put('/prizes', async (req, res, next) => {
   }
 });
 
+/**
+ * GET /api/admin/programs
+ * Get program configuration
+ */
+router.get('/programs', async (_req, res, next) => {
+  try {
+    const config = programConfigService.getFullConfig();
+    return res.json({
+      success: true,
+      data: config,
+    });
+  } catch (error) {
+    next(error);
+  }
+});
+
+/**
+ * PUT /api/admin/programs
+ * Update program configuration
+ */
+router.put('/programs', async (req, res, next) => {
+  try {
+    const { programs, settings } = req.body;
+
+    if (programs) {
+      const result = await programConfigService.updatePrograms(programs);
+      if (!result.success) {
+        return res.status(400).json({ success: false, error: result.error });
+      }
+    }
+
+    if (settings) {
+      const result = await programConfigService.updateSettings(settings);
+      if (!result.success) {
+        return res.status(400).json({ success: false, error: result.error });
+      }
+    }
+
+    return res.json({
+      success: true,
+      data: programConfigService.getFullConfig(),
+    });
+  } catch (error) {
+    next(error);
+  }
+});
+
 /**
  * POST /api/admin/draw/start
  * Start a lucky draw