feat: 人生事件和剧本收藏从 localStorage 切换为真实 API

- 后端：新增 t_event_favorite 表（UNIQUE KEY + MyBatis-Plus Entity）
- 后端：LifeEventController 新增 /favorite/toggle、/favorite/page、/favorite/check 三个真实端点
- 后端：EventFavoriteService 完整 CRUD，含 toggle/分页/批量查询/状态检查
- 后端：删除旧的 favorite-placeholder mock 端点
- 前端：life-event/detail.vue 从 localStorage 假收藏切换为真实 API + localStorage 缓存防闪烁
- 前端：ScriptLibraryView.vue 从 localFavorites 切换为 checkFavoriteScript 真实 API
- 前端：stores/app.js 新增 toggleEventFavorite / checkEventFavorite 方法
- 修复：审核发现的 UNIQUE 约束缺失、未使用 watch 导入、Controller 参数注解遗漏、Controller 委托 Service 构造 Response

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

server/src/main/java/com/emotion/controller/LifeEventController.java

@@ -2,10 +2,13 @@ package com.emotion.controller;
 
 import com.emotion.common.PageResult;
 import com.emotion.common.Result;
+import com.emotion.dto.request.EventFavoriteToggleRequest;
 import com.emotion.dto.request.LifeEventCreateRequest;
 import com.emotion.dto.request.LifeEventPageRequest;
 import com.emotion.dto.request.LifeEventUpdateRequest;
+import com.emotion.dto.response.EventFavoriteResponse;
 import com.emotion.dto.response.LifeEventResponse;
+import com.emotion.service.EventFavoriteService;
 import com.emotion.service.LifeEventService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
@@ -35,6 +38,9 @@ public class LifeEventController {
     @Autowired
     private LifeEventService lifeEventService;
 
+    @Autowired
+    private EventFavoriteService eventFavoriteService;
+
     /**
      * 分页查询当前用户的生命事件
      */
@@ -150,18 +156,6 @@ public class LifeEventController {
         return Result.success(data);
     }
 
-    @Operation(summary = "收藏占位接口", description = "返回收藏功能的占位响应。")
-    @PostMapping(value = "/favorite-placeholder")
-    public Result<Map<String, Object>> favoritePlaceholder(@RequestBody Map<String, Object> request) {
-        String id = stringValue(request.get("id"), "");
-        Boolean favorite = Boolean.TRUE.equals(request.get("favorite"));
-        Map<String, Object> data = new HashMap<>();
-        data.put("id", id);
-        data.put("favorite", favorite);
-        data.put("placeholder", true);
-        return Result.success(data);
-    }
-
     private String stringValue(Object value, String fallback) {
         if (value == null) {
             return fallback;
@@ -170,6 +164,30 @@ public class LifeEventController {
         return text.isEmpty() ? fallback : text;
     }
 
+    // ==================== 人生事件收藏 ====================
+
+    @Operation(summary = "切换收藏", description = "收藏或取消收藏指定事件。")
+    @PostMapping(value = "/favorite/toggle")
+    public Result<EventFavoriteResponse> toggleFavorite(
+            @Valid @RequestBody EventFavoriteToggleRequest request) {
+        return Result.success(eventFavoriteService.toggleFavorite(request.getEventId()));
+    }
+
+    @Operation(summary = "分页查询收藏", description = "分页查询当前用户收藏的事件列表。")
+    @GetMapping(value = "/favorite/page")
+    public Result<PageResult<LifeEventResponse>> getFavoritePage(
+            @RequestParam(defaultValue = "1") long current,
+            @RequestParam(defaultValue = "10") long size) {
+        return Result.success(eventFavoriteService.getFavoritePage(current, size));
+    }
+
+    @Operation(summary = "检查收藏状态", description = "检查指定事件是否已被当前用户收藏。")
+    @GetMapping(value = "/favorite/check")
+    public Result<EventFavoriteResponse> checkFavorite(
+            @Parameter(description = "事件 ID") @RequestParam String eventId) {
+        return Result.success(eventFavoriteService.checkFavorite(eventId));
+    }
+
     @SuppressWarnings("unchecked")
     private List<String> readTags(Object value) {
         List<String> tags = new ArrayList<>();

server/src/main/java/com/emotion/dto/request/EventFavoriteToggleRequest.java

@@ -0,0 +1,18 @@
+package com.emotion.dto.request;
+
+import lombok.Data;
+
+import javax.validation.constraints.NotBlank;
+
+/**
+ * 人生事件收藏切换请求
+ *
+ * @author huazhongmin
+ * @date 2026-07-19
+ */
+@Data
+public class EventFavoriteToggleRequest {
+
+    @NotBlank(message = "事件ID不能为空")
+    private String eventId;
+}

server/src/main/java/com/emotion/dto/response/EventFavoriteResponse.java

@@ -0,0 +1,19 @@
+package com.emotion.dto.response;
+
+import lombok.Data;
+
+/**
+ * 人生事件收藏状态响应
+ *
+ * @author huazhongmin
+ * @date 2026-07-19
+ */
+@Data
+public class EventFavoriteResponse {
+
+    private String eventId;
+
+    private Boolean isFavorited;
+
+    private String favoriteTime;
+}

server/src/main/java/com/emotion/entity/EventFavorite.java

@@ -0,0 +1,31 @@
+package com.emotion.entity;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableName;
+import com.emotion.common.BaseEntity;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import lombok.experimental.SuperBuilder;
+
+/**
+ * 人生事件收藏关联实体
+ *
+ * @author huazhongmin
+ * @date 2026-07-19
+ */
+@Data
+@EqualsAndHashCode(callSuper = true)
+@SuperBuilder
+@NoArgsConstructor
+@AllArgsConstructor
+@TableName("t_event_favorite")
+public class EventFavorite extends BaseEntity {
+
+    @TableField("user_id")
+    private String userId;
+
+    @TableField("event_id")
+    private String eventId;
+}

server/src/main/java/com/emotion/mapper/EventFavoriteMapper.java

@@ -0,0 +1,15 @@
+package com.emotion.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.emotion.entity.EventFavorite;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+ * 人生事件收藏Mapper接口
+ *
+ * @author huazhongmin
+ * @date 2026-07-19
+ */
+@Mapper
+public interface EventFavoriteMapper extends BaseMapper<EventFavorite> {
+}

server/src/main/java/com/emotion/service/EventFavoriteService.java

@@ -0,0 +1,66 @@
+package com.emotion.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.emotion.common.PageResult;
+import com.emotion.dto.response.EventFavoriteResponse;
+import com.emotion.dto.response.LifeEventResponse;
+import com.emotion.entity.EventFavorite;
+
+import java.util.Set;
+
+/**
+ * 人生事件收藏服务接口
+ *
+ * @author huazhongmin
+ * @date 2026-07-19
+ */
+public interface EventFavoriteService extends IService<EventFavorite> {
+
+    /**
+     * 切换收藏状态（收藏/取消收藏）
+     *
+     * @param eventId 事件ID
+     * @return 收藏状态响应
+     */
+    EventFavoriteResponse toggleFavorite(String eventId);
+
+    /**
+     * 分页查询当前用户收藏的事件列表
+     *
+     * @param current 当前页码
+     * @param size    每页大小
+     * @return 分页结果
+     */
+    PageResult<LifeEventResponse> getFavoritePage(long current, long size);
+
+    /**
+     * 批量查询已收藏的事件ID集合
+     *
+     * @param eventIds 待查询的事件ID集合
+     * @return 已收藏的事件ID集合
+     */
+    Set<String> getFavoritedEventIds(Set<String> eventIds);
+
+    /**
+     * 检查收藏状态
+     *
+     * @param eventId 事件ID
+     * @return 收藏状态响应
+     */
+    EventFavoriteResponse checkFavorite(String eventId);
+
+    /**
+     * 检查指定事件是否已被当前用户收藏
+     *
+     * @param eventId 事件ID
+     * @return 是否已收藏
+     */
+    boolean isFavorited(String eventId);
+
+    /**
+     * 获取当前用户的收藏总数
+     *
+     * @return 收藏总数
+     */
+    long getFavoriteCount();
+}

server/src/main/java/com/emotion/service/impl/EventFavoriteServiceImpl.java

@@ -0,0 +1,157 @@
+package com.emotion.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.emotion.common.PageResult;
+import com.emotion.dto.response.EventFavoriteResponse;
+import com.emotion.dto.response.LifeEventResponse;
+import com.emotion.entity.EventFavorite;
+import com.emotion.mapper.EventFavoriteMapper;
+import com.emotion.service.EventFavoriteService;
+import com.emotion.service.LifeEventService;
+import com.emotion.util.UserContextHolder;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+
+import java.time.format.DateTimeFormatter;
+import java.util.*;
+import java.util.stream.Collectors;
+
+/**
+ * 人生事件收藏服务实现
+ *
+ * @author huazhongmin
+ * @date 2026-07-19
+ */
+@Slf4j
+@Service
+public class EventFavoriteServiceImpl extends ServiceImpl<EventFavoriteMapper, EventFavorite>
+        implements EventFavoriteService {
+
+    private static final DateTimeFormatter FMT = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+
+    @Autowired
+    private LifeEventService lifeEventService;
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public EventFavoriteResponse toggleFavorite(String eventId) {
+        String userId = UserContextHolder.getCurrentUserId();
+        EventFavoriteResponse r = new EventFavoriteResponse();
+        r.setEventId(eventId);
+
+        if (!StringUtils.hasText(userId)) {
+            r.setIsFavorited(false);
+            return r;
+        }
+
+        LambdaQueryWrapper<EventFavorite> w = new LambdaQueryWrapper<>();
+        w.eq(EventFavorite::getUserId, userId)
+         .eq(EventFavorite::getEventId, eventId)
+         .eq(EventFavorite::getIsDeleted, 0);
+
+        EventFavorite existing = this.getOne(w);
+        if (existing != null) {
+            this.removeById(existing.getId());
+            r.setIsFavorited(false);
+        } else {
+            EventFavorite fav = new EventFavorite();
+            fav.setUserId(userId);
+            fav.setEventId(eventId);
+            this.save(fav);
+            r.setIsFavorited(true);
+            if (fav.getCreateTime() != null) {
+                r.setFavoriteTime(fav.getCreateTime().format(FMT));
+            }
+        }
+        return r;
+    }
+
+    @Override
+    public PageResult<LifeEventResponse> getFavoritePage(long current, long size) {
+        String userId = UserContextHolder.getCurrentUserId();
+        if (!StringUtils.hasText(userId)) {
+            return new PageResult<>();
+        }
+
+        LambdaQueryWrapper<EventFavorite> w = new LambdaQueryWrapper<>();
+        w.eq(EventFavorite::getUserId, userId)
+         .eq(EventFavorite::getIsDeleted, 0)
+         .orderByDesc(EventFavorite::getCreateTime);
+
+        Page<EventFavorite> page = new Page<>(current, size);
+        Page<EventFavorite> result = this.page(page, w);
+
+        List<LifeEventResponse> records = result.getRecords().stream()
+                .map(EventFavorite::getEventId)
+                .map(lifeEventService::getEventById)
+                .filter(Objects::nonNull)
+                .collect(Collectors.toList());
+
+        PageResult<LifeEventResponse> pr = new PageResult<>();
+        pr.setCurrent(result.getCurrent());
+        pr.setSize(result.getSize());
+        pr.setTotal(result.getTotal());
+        pr.setPages(result.getPages());
+        pr.setRecords(records);
+        return pr;
+    }
+
+    @Override
+    public Set<String> getFavoritedEventIds(Set<String> eventIds) {
+        String userId = UserContextHolder.getCurrentUserId();
+        if (!StringUtils.hasText(userId) || eventIds == null || eventIds.isEmpty()) {
+            return Collections.emptySet();
+        }
+
+        LambdaQueryWrapper<EventFavorite> w = new LambdaQueryWrapper<>();
+        w.eq(EventFavorite::getUserId, userId)
+         .in(EventFavorite::getEventId, eventIds)
+         .eq(EventFavorite::getIsDeleted, 0);
+
+        return this.list(w).stream()
+                .map(EventFavorite::getEventId)
+                .collect(Collectors.toSet());
+    }
+
+    @Override
+    public EventFavoriteResponse checkFavorite(String eventId) {
+        EventFavoriteResponse r = new EventFavoriteResponse();
+        r.setEventId(eventId);
+        r.setIsFavorited(isFavorited(eventId));
+        return r;
+    }
+
+    @Override
+    public boolean isFavorited(String eventId) {
+        String userId = UserContextHolder.getCurrentUserId();
+        if (!StringUtils.hasText(userId) || !StringUtils.hasText(eventId)) {
+            return false;
+        }
+
+        LambdaQueryWrapper<EventFavorite> w = new LambdaQueryWrapper<>();
+        w.eq(EventFavorite::getUserId, userId)
+         .eq(EventFavorite::getEventId, eventId)
+         .eq(EventFavorite::getIsDeleted, 0);
+
+        return this.count(w) > 0;
+    }
+
+    @Override
+    public long getFavoriteCount() {
+        String userId = UserContextHolder.getCurrentUserId();
+        if (!StringUtils.hasText(userId)) {
+            return 0L;
+        }
+
+        LambdaQueryWrapper<EventFavorite> w = new LambdaQueryWrapper<>();
+        w.eq(EventFavorite::getUserId, userId)
+         .eq(EventFavorite::getIsDeleted, 0);
+
+        return this.count(w);
+    }
+}