feat: 实现主题、黑名单、排程等14项功能迭代

- style(theme): 修复浅色模式不生效问题，为 ClassicLight 和 ModernLight 增加独立差异化 CSS 变量定义（主色/圆角/阴影/背景对比度）
- feat(blacklist): 后端放开 LANGUAGE/GENRE 类型校验；check API 新增语种（CJK/拉丁/假名/谚文/西里尔/阿拉伯）和曲风关键词匹配逻辑；前端 BlacklistManager UI 增加 语种/曲风 四类型切换、类型筛选、图标与标签颜色映射、输入提示
- fix(DataAnalysisPanel): 活跃用户列表容器加 max-h-[400px] + overflow-y-auto + 底部渐变遮罩；tooltip 加 max-height + truncate 防止超高；头像失败回退首字母
- feat(admin): 新增 user-avatar.ts 工具（OAuth→Gravatar→DiceBear 三级兜底）；active-users/realtime/users 列表返回 avatarUrl；DataAnalysisPanel/UserManager 展示圆形头像；权限分级 ROLE_LEVELS，SUPER_ADMIN 全权限，ADMIN 仅可管理 ≤ USER 级用户的密码与角色，前端按钮联动禁用
- fix+style(schedule): ScheduleManager 标签页 sticky min-h 防抖、间距调优、表单分组、移动端 padding 统一
- feat(schedule): 自动排期新增「按投稿人数优先覆盖」策略（算法：requester + collaborators 总数降序），支持 CustomSelect 切换；新增 localStorage voicehub:schedule:auto-config 持久化 7 项配置（策略/时段/年级/排序/标签/搜索/学期）500ms debounce
- fix(schedule): songs/index.get 新增 usePool 参数，从 schedule_song_pool(status=PENDING,targetPlayDate IS NULL) 取歌并去重，排除已排期 songs.played=false；schedule.post 和 draft-bulk 分配后更新池状态为 ASSIGNED 避免重复分配
- feat(player): ScheduleManager 新增「构建播放队列」按钮，按 playDate→时段→sequence 排序后经 useAudioPlayer.playSong 整列载入并 toast 反馈
- fix(db): db.ts 检测 NETLIFY/VERCEL serverless 环境使用最小池 max=1 idle_timeout=1 keep_alive=false，Node Server 保持 max=10
- feat(site-config): site-config.get.ts 与 useSiteConfig.js 导出 statisticsCode 和 statisticsCodeEnabled；index.vue 挂载后解析 HTML 动态重插 script 元素确保第三方统计执行
- fix(schedule-printer): ScheduleItemPrint 封面 aspect-square object-cover；print-fix.css 打印时强制 48px×48px contain、去除圆角阴影
- fix(songRequest): 新增 server/utils/url.ts normalizeCoverUrl（trim/去零宽空格/相对协议补 https/非 http 丢弃/URL.parse 兜底）；request.post/add.post/import.post 三处写入 cover/coverUrl 前统一规范化

server/api/blacklist/check.post.ts

@@ -3,9 +3,39 @@ import { db } from '~/drizzle/db'
 import { songBlacklists, systemSettings } from '~/drizzle/schema'
 import { eq } from 'drizzle-orm'
 
+function isCJK(text: string): boolean {
+  return /[\u4e00-\u9fa5]/.test(text)
+}
+function isLatin(text: string): boolean {
+  return /[A-Za-z]/.test(text)
+}
+function isKana(text: string): boolean {
+  return /[\u3040-\u30ff]/.test(text)
+}
+function isHangul(text: string): boolean {
+  return /[\uac00-\ud7af]/.test(text)
+}
+function isCyrillic(text: string): boolean {
+  return /[\u0400-\u04ff]/.test(text)
+}
+function isArabic(text: string): boolean {
+  return /[\u0600-\u06ff]/.test(text)
+}
+function detectLanguages(text: string): string[] {
+  const result: string[] = []
+  if (!text) return result
+  if (isCJK(text)) result.push('zh', '中文', 'chinese', 'cjk')
+  if (isLatin(text)) result.push('en', '英文', 'english', 'latin')
+  if (isKana(text)) result.push('ja', '日文', 'japanese')
+  if (isHangul(text)) result.push('ko', '韩文', 'korean')
+  if (isCyrillic(text)) result.push('ru', '俄文', 'russian', 'cyrillic')
+  if (isArabic(text)) result.push('ar', '阿拉伯文', 'arabic')
+  return result
+}
+
 export default defineEventHandler(async (event) => {
   const body = await readBody(event)
-  const { title, artist } = body
+  const { title, artist, genre } = body
 
   if (!title) {
     throw createError({
@@ -15,24 +45,31 @@ export default defineEventHandler(async (event) => {
   }
 
   try {
-    // 获取系统设置
     const systemSettingsResult = await db.select().from(systemSettings).limit(1)
     const systemSettingsData = systemSettingsResult[0]
     const showBlacklistKeywords = systemSettingsData?.showBlacklistKeywords ?? false
 
-    // 获取所有活跃的黑名单项
     const blacklistItems = await db
       .select()
       .from(songBlacklists)
       .where(eq(songBlacklists.isActive, true))
 
     const songFullName = `${title} - ${artist || ''}`.toLowerCase()
-    const blocked = []
+    const genreLower = (genre || '').toLowerCase()
+    const combinedText = `${title} ${artist || ''} ${genre || ''}`
+    const textLanguages = new Set([
+      ...detectLanguages(title || ''),
+      ...detectLanguages(artist || ''),
+      ...detectLanguages(genre || '')
+    ])
+
+    const blocked: Array<{ type: string; value: string | null; reason: string }> = []
 
     for (const item of blacklistItems) {
+      const valueLower = item.value.toLowerCase()
+
       if (item.type === 'SONG') {
-        // 检查具体歌曲
-        if (songFullName.includes(item.value.toLowerCase())) {
+        if (songFullName.includes(valueLower)) {
           blocked.push({
             type: 'song',
             value: item.value,
@@ -40,15 +77,38 @@ export default defineEventHandler(async (event) => {
           })
         }
       } else if (item.type === 'KEYWORD') {
-        // 检查关键词
-        if (songFullName.includes(item.value.toLowerCase())) {
+        if (songFullName.includes(valueLower) || (genreLower && genreLower.includes(valueLower))) {
           blocked.push({
             type: 'keyword',
-            value: showBlacklistKeywords ? item.value : null, // 根据设置决定是否显示具体关键词
+            value: showBlacklistKeywords ? item.value : null,
             reason:
               item.reason || (showBlacklistKeywords ? `包含关键词：${item.value}` : '包含关键词')
           })
         }
+      } else if (item.type === 'LANGUAGE') {
+        const tokens = [
+          valueLower,
+          ...valueLower.split(/[,，\/|\s]+/).map((s) => s.trim()).filter(Boolean)
+        ]
+        const hit = tokens.some((lang) => textLanguages.has(lang))
+        if (hit) {
+          blocked.push({
+            type: 'language',
+            value: showBlacklistKeywords ? item.value : null,
+            reason: item.reason || `该语种歌曲已被限制：${showBlacklistKeywords ? item.value : ''}`.trim()
+          })
+        }
+      } else if (item.type === 'GENRE') {
+        const combinedForGenre = `${genreLower} ${combinedText}`.toLowerCase()
+        const tokens = valueLower.split(/[,，\/|\s]+/).map((s) => s.trim()).filter(Boolean)
+        const hit = tokens.some((tok) => combinedForGenre.includes(tok))
+        if (hit) {
+          blocked.push({
+            type: 'genre',
+            value: showBlacklistKeywords ? item.value : null,
+            reason: item.reason || `该曲风歌曲已被限制：${showBlacklistKeywords ? item.value : ''}`.trim()
+          })
+        }
       }
     }
 
@@ -57,7 +117,8 @@ export default defineEventHandler(async (event) => {
       reasons: blocked,
       song: {
         title,
-        artist
+        artist,
+        genre: genre || null
       }
     }
   } catch (error) {