add auth

src/lib/db.ts

@@ -44,6 +44,20 @@ function initDb(db: Database.Database): void {
       type TEXT NOT NULL CHECK(type IN ('games', 'mixed', 'movies', 'tv')),
       cover_ext TEXT NULL
     );
+
+    CREATE TABLE IF NOT EXISTS users (
+      id            TEXT PRIMARY KEY,
+      username      TEXT NOT NULL UNIQUE,
+      password_hash TEXT NOT NULL,
+      role          TEXT NOT NULL CHECK(role IN ('admin', 'user')),
+      created_at    INTEGER NOT NULL
+    );
+
+    CREATE TABLE IF NOT EXISTS library_permissions (
+      user_id    TEXT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      library_id TEXT NOT NULL REFERENCES libraries(id) ON DELETE CASCADE,
+      PRIMARY KEY (user_id, library_id)
+    );
   `)
 
   migrateLibrariesType(db)