many changes

src-tauri/src/storage/schema.rs

@@ -17,6 +17,7 @@ pub const MIGRATIONS: &[(&str, &str)] = &[
     ("012_download_source", MIGRATION_012),
     ("013_downloads_item_status_index", MIGRATION_013),
     ("014_series_audio_preferences", MIGRATION_014),
+    ("015_device_id", MIGRATION_015),
 ];
 
 /// Initial schema migration
@@ -638,3 +639,20 @@ CREATE TABLE IF NOT EXISTS series_audio_preferences (
 CREATE INDEX IF NOT EXISTS idx_series_audio_prefs_user_series
   ON series_audio_preferences(user_id, series_id);
 "#;
+
+/// Migration to add device ID storage
+/// - Creates app_settings table for app-wide configuration (device ID, etc.)
+/// - Device ID is generated once and persisted for Jellyfin server identification
+const MIGRATION_015: &str = r#"
+-- App-wide settings table for device ID and other app-level configuration
+-- Device ID is a unique identifier for this app installation
+-- Required for Jellyfin server communication and session tracking
+CREATE TABLE IF NOT EXISTS app_settings (
+    key TEXT PRIMARY KEY,
+    value TEXT NOT NULL,
+    updated_at TEXT DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Create index for efficient lookups (though key is already primary key)
+CREATE INDEX IF NOT EXISTS idx_app_settings_key ON app_settings(key);
+"#;