新增: SFTP直连+网站预览+OSS区域嗅探+热键+BGM播放

internal/storage/models/bgm_playlist.go

@@ -0,0 +1,12 @@
+package models
+
+// BgmPlaylist BGM 播放列表持久化
+type BgmPlaylist struct {
+	ID        uint   `gorm:"primaryKey"`
+	Name      string `gorm:"not null;size:255"`
+	Path      string `gorm:"not null;size:500;uniqueIndex"`
+	ProfileID string `gorm:"type:varchar(50)" json:"profile_id"`
+	Sort      uint   `gorm:"not null"`
+}
+
+func (BgmPlaylist) TableName() string { return "bgm_playlist" }

internal/storage/models/connection_profile.go

@@ -11,7 +11,8 @@ type ConnectionProfile struct {
 	Username      string     `gorm:"type:varchar(100);default:root" json:"username"`
 	Password      string     `gorm:"type:text" json:"password"`
 	KeyPath       string     `gorm:"type:text" json:"key_path"`
-	Type          string     `gorm:"type:varchar(20);not null;index" json:"type"` // local|remote|sftp|qiniu|aliyun
+	Type          string     `gorm:"type:varchar(20);not null;index" json:"type"` // local|remote|sftp|oss
+	Provider      string     `gorm:"type:varchar(20)" json:"provider"`           // qiniu|aliyun (仅 type=oss)
 	Token         string     `gorm:"type:text" json:"token"`
 	AccessKey     string     `gorm:"type:text" json:"access_key"`
 	SecretKey     string     `gorm:"type:text" json:"secret_key"`

internal/storage/models/download_cache.go

@@ -0,0 +1,17 @@
+package models
+
+import "time"
+
+// DownloadCache 下载缓存模型（SQLite 持久化）
+type DownloadCache struct {
+	ID           uint      `gorm:"primaryKey"`
+	Transport    string    `gorm:"not null;size:10;index:idx_cache_lookup"`
+	ConnID       string    `gorm:"not null;index:idx_cache_lookup"`
+	RemotePath   string    `gorm:"not null;index:idx_cache_lookup"`
+	FileSize     int64     `gorm:"not null;index:idx_cache_lookup"`
+	ModTime      string    `gorm:"not null;index:idx_cache_lookup"`
+	LocalPath    string    `gorm:"not null"`
+	DownloadedAt time.Time `gorm:"not null"`
+}
+
+func (DownloadCache) TableName() string { return "download_cache" }