feat(script-favorite): add favorite API wrappers to epicScript.js

- toggleFavoriteScript: POST /epicScript/favorite/toggle
- getFavoriteScriptPage: GET /epicScript/favorite/page
- checkFavoriteScript: GET /epicScript/favorite/check
- Added to default export object

mini-program/src/services/epicScript.js

@@ -198,6 +198,39 @@ export const transformListToFrontend = (backendList) => {
   return backendList.map(transformToFrontendFormat)
 }
 
+/**
+ * 切换剧本收藏状态（收藏/取消收藏）
+ * @param {string} scriptId 剧本ID
+ * @returns {Promise<{success: boolean, isFavorited: boolean}>}
+ */
+export const toggleFavoriteScript = async (scriptId) => {
+  const res = await post('/epicScript/favorite/toggle', { scriptId })
+  return {
+    success: true,
+    isFavorited: res.data?.isFavorited ?? false,
+    favoriteTime: res.data?.favoriteTime ?? null
+  }
+}
+
+/**
+ * 获取收藏剧本列表
+ * @param {number} current 当前页
+ * @param {number} size 每页大小
+ */
+export const getFavoriteScriptPage = async (current = 1, size = 10) => {
+  return get('/epicScript/favorite/page', { current, size })
+}
+
+/**
+ * 检查剧本是否已收藏
+ * @param {string} scriptId 剧本ID
+ * @returns {Promise<boolean>}
+ */
+export const checkFavoriteScript = async (scriptId) => {
+  const res = await get('/epicScript/favorite/check', { scriptId })
+  return res.data?.isFavorited ?? false
+}
+
 export default {
   getScriptList,
   getScriptPage,
@@ -212,5 +245,8 @@ export default {
   buildCharacterInfo,
   buildLifeEventsSummary,
   transformToFrontendFormat,
-  transformListToFrontend
+  transformListToFrontend,
+  toggleFavoriteScript,
+  getFavoriteScriptPage,
+  checkFavoriteScript,
 }