feat: 视频缩略图生成、最近文件面板与前端视图重构

- 新增 VideoThumbnailService，基于 ffmpeg 截取视频缩略图，ffprobe 提取时长 - 新增 ManagedThumbnailMap 模型及多数据库迁移，存储缩略图元数据 - 新增 /api/thumbnails/{id} 缩略图流端点 - 新增最近添加/最近播放 API 与前端面板，支持列表/网格双视图切换 - FileRecordDto 扩展 thumbnailUrl、videoDuration、lastPlayedAt 字段 - 前端新增文件库 Tab 导航、卡片网格视图、视频海报与时长信息栏 - 添加文件库目录不再同步全量扫描，改为后台异步自动扫描
2026-05-22 17:01:49 +08:00
parent 6acc92ca27
commit 2c20f9bb54
47 changed files with 5975 additions and 64 deletions
@@ -0,0 +1,37 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace FileShare_EFCore.Models
+{
+    [Comment("文件缩略图映射记录")]
+    [Table("managed-thumbnail-map")]
+    public class ManagedThumbnailMap
+    {
+        [Key]
+        [Column("id")]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        public int Id { get; set; }
+
+        [Column("library-root-id")]
+        public int LibraryRootId { get; set; }
+
+        [Column("relative-path")]
+        [MaxLength(1024)]
+        public string RelativePath { get; set; } = string.Empty;
+
+        [Column("content-type")]
+        [MaxLength(100)]
+        public string ContentType { get; set; } = "image/jpeg";
+
+        [Column("created-at")]
+        public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+
+        [Column("updated-at")]
+        public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
+
+        public ManagedLibraryRoot? LibraryRoot { get; set; }
+
+        public List<ManagedFileRecord> Files { get; set; } = new();
+    }
+}