feat(storage): add SQLite-backed m3u playlists for Electron with IndexedDB migration

libs/shared/database/src/lib/connection.ts

@@ -56,7 +56,20 @@ const CREATE_TABLE_STATEMENTS = [
       autoRefresh INTEGER DEFAULT 0,
       macAddress TEXT,
       url TEXT,
+      portal_url TEXT,
+      count INTEGER,
+      import_date TEXT,
+      update_date INTEGER,
+      position INTEGER,
+      favorites TEXT,
+      recently_viewed TEXT,
+      payload TEXT,
       last_usage TEXT
+  )`,
+    `CREATE TABLE IF NOT EXISTS app_state (
+      key TEXT PRIMARY KEY,
+      value TEXT NOT NULL,
+      updated_at TEXT DEFAULT (datetime('now'))
   )`,
     `CREATE TABLE IF NOT EXISTS categories (
       id INTEGER PRIMARY KEY AUTOINCREMENT,
@@ -209,6 +222,15 @@ const CREATE_TABLE_STATEMENTS = [
 const MIGRATION_STATEMENTS = [
     // v1.0.0 -> v1.1.0: Add hidden column to categories for category management
     `ALTER TABLE categories ADD COLUMN hidden INTEGER DEFAULT 0`,
+    // v1.1.0 -> v1.2.0: Add playlist metadata/payload columns for M3U + unified playlist persistence
+    `ALTER TABLE playlists ADD COLUMN portal_url TEXT`,
+    `ALTER TABLE playlists ADD COLUMN count INTEGER`,
+    `ALTER TABLE playlists ADD COLUMN import_date TEXT`,
+    `ALTER TABLE playlists ADD COLUMN update_date INTEGER`,
+    `ALTER TABLE playlists ADD COLUMN position INTEGER`,
+    `ALTER TABLE playlists ADD COLUMN favorites TEXT`,
+    `ALTER TABLE playlists ADD COLUMN recently_viewed TEXT`,
+    `ALTER TABLE playlists ADD COLUMN payload TEXT`,
 ];
 
 /**

libs/shared/database/src/lib/schema.ts

@@ -35,9 +35,24 @@ export const playlists = sqliteTable('playlists', {
     autoRefresh: integer('autoRefresh', { mode: 'boolean' }).default(false),
     macAddress: text('macAddress'),
     url: text('url'),
+    portalUrl: text('portal_url'),
+    count: integer('count'),
+    importDate: text('import_date'),
+    updateDate: integer('update_date'),
+    position: integer('position'),
+    favorites: text('favorites'),
+    recentlyViewed: text('recently_viewed'),
+    payload: text('payload'),
     lastUsage: text('last_usage'),
 });
 
+// App key-value state table (e.g. one-time migration flags)
+export const appState = sqliteTable('app_state', {
+    key: text('key').primaryKey(),
+    value: text('value').notNull(),
+    updatedAt: text('updated_at').default(sql`CURRENT_TIMESTAMP`),
+});
+
 // Categories table
 export const categories = sqliteTable(
     'categories',
@@ -214,6 +229,8 @@ export const playbackPositions = sqliteTable(
 // Type exports for TypeScript
 export type Playlist = typeof playlists.$inferSelect;
 export type NewPlaylist = typeof playlists.$inferInsert;
+export type AppState = typeof appState.$inferSelect;
+export type NewAppState = typeof appState.$inferInsert;
 
 export type Category = typeof categories.$inferSelect;
 export type NewCategory = typeof categories.$inferInsert;