fixed a bit

app/api/register/route.js

@@ -0,0 +1,45 @@
+import { queryOne, run } from "../../../lib/db";
+const bcrypt = require("bcryptjs");
+
+export async function POST(request) {
+  try {
+    const { username, password } = await request.json();
+
+    // Validate input
+    if (!username || !password) {
+      return new Response(
+        JSON.stringify({ error: "Username and password are required" }),
+        { status: 400 }
+      );
+    }
+
+    // Check if username exists
+    const existingUser = await queryOne(
+      "SELECT id FROM users WHERE username = ?",
+      [username]
+    );
+
+    if (existingUser) {
+      return new Response(
+        JSON.stringify({ error: "Username already exists" }),
+        { status: 400 }
+      );
+    }
+
+    // Hash password
+    const hashedPassword = await bcrypt.hash(password, 10);
+
+    // Insert user
+    await run(
+      "INSERT INTO users (username, password, role) VALUES (?, ?, 'user')",
+      [username, hashedPassword]
+    );
+
+    return new Response(JSON.stringify({ success: true }), { status: 201 });
+  } catch (error) {
+    console.error("Registration error:", error);
+    return new Response(JSON.stringify({ error: "Failed to register user" }), {
+      status: 500,
+    });
+  }
+}