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/config/programs.json

@@ -0,0 +1,56 @@
+{
+    "programs": [
+        {
+            "id": "p1",
+            "name": "龙腾四海",
+            "teamName": "市场部",
+            "order": 1
+        },
+        {
+            "id": "p2",
+            "name": "金马奔腾",
+            "teamName": "技术部",
+            "order": 2
+        },
+        {
+            "id": "p3",
+            "name": "春风得意",
+            "teamName": "人力资源部",
+            "order": 3
+        },
+        {
+            "id": "p4",
+            "name": "鸿运当头",
+            "teamName": "财务部",
+            "order": 4
+        },
+        {
+            "id": "p5",
+            "name": "马到成功",
+            "teamName": "运营部",
+            "order": 5
+        },
+        {
+            "id": "p6",
+            "name": "一马当先",
+            "teamName": "产品部",
+            "order": 6
+        },
+        {
+            "id": "p7",
+            "name": "万马奔腾",
+            "teamName": "设计部",
+            "order": 7
+        },
+        {
+            "id": "p8",
+            "name": "龙马精神",
+            "teamName": "销售部",
+            "order": 8
+        }
+    ],
+    "settings": {
+        "allowLateCatch": true,
+        "maxVotesPerUser": 7
+    }
+}