添加订阅配置与持久化对象

- 添加配置：检查间隔、订阅信息推送bot
- 添加数据：订阅记录、模组最新文件的id集合

src/main/kotlin/top/jie65535/jcf/PluginConfig.kt

@@ -20,4 +20,16 @@ object PluginConfig : AutoSavePluginConfig("JCurseforgeConfig") {
             MinecraftService.ModClass.CUSTOMIZATION to "cfcustom ",
         )
     )
+
+    /**
+     * 订阅信息推送bot
+     */
+    @ValueDescription("订阅信息推送bot（qq id）")
+    val subscribeSender: Long by value(-1L)
+
+    /**
+     * 检查间隔
+     */
+    @ValueDescription("检查间隔（单位：秒）")
+    val checkInterval: Long by value(60 * 60 * 4L)
 }

src/main/kotlin/top/jie65535/jcf/PluginData.kt

@@ -0,0 +1,36 @@
+package top.jie65535.jcf
+
+import net.mamoe.mirai.console.data.AutoSavePluginData
+import net.mamoe.mirai.console.data.value
+import net.mamoe.mirai.console.data.ValueDescription
+
+object PluginData : AutoSavePluginData("JCurseforgeData") {
+
+    /**
+     * 模组最新文件的id集合
+     * ```json
+     * {
+     *    mod_id: file_id,
+     *    ...
+     * }
+     * ```
+     */
+    @ValueDescription("模组最新文件的id集合")
+    var modsLastFile: MutableMap<Int, Int> by value()
+
+    /**
+     * 订阅记录
+     * ```json
+     * {
+     *    mod_id: {
+     *       group_id: [ qq_id, ... ],
+     *       ...
+     *    },
+     *    ...
+     * }
+     * ```
+     * 个人订阅时，group为0
+     */
+    @ValueDescription("订阅记录")
+    var subscriptionSet: MutableMap<Int, MutableMap<Long, MutableList<Long>>> by value()
+}