restructure js bindings

bindings/javascript/packages/native/promise.ts

@@ -0,0 +1,21 @@
+import { DatabasePromise, NativeDatabase, SqliteError, DatabaseOpts } from "@tursodatabase/database-core"
+import { Database as NativeDB } from "#index";
+
+class Database extends DatabasePromise {
+    constructor(path: string, opts: DatabaseOpts = {}) {
+        super(new NativeDB(path, { tracing: opts.tracing }) as unknown as NativeDatabase, opts)
+    }
+}
+
+/**
+ * Creates a new database connection asynchronously.
+ * 
+ * @param {string} path - Path to the database file.
+ * @param {Object} opts - Options for database behavior.
+ * @returns {Promise<Database>} - A promise that resolves to a Database instance.
+ */
+async function connect(path: string, opts: any = {}): Promise<Database> {
+    return new Database(path, opts);
+}
+
+export { connect, Database, SqliteError }