scripts: add create-user.sh for inserting users into database

create-user.sh

@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+
+set -e
+
+usage() {
+  echo "Brug: $0 --username=<brugernavn> --password=<adgangskode>"
+  exit 1
+}
+
+USERNAME=""
+PASSWORD=""
+
+for i in "$@"; do
+  case $i in
+    --username=*)
+      USERNAME="${i#*=}"
+      shift
+      ;;
+    --password=*)
+      PASSWORD="${i#*=}"
+      shift
+      ;;
+    *)
+      echo "Ukendt parameter: $i"
+      usage
+      ;;
+  esac
+done
+
+if [ -z "$USERNAME" ] || [ -z "$PASSWORD" ]; then
+  usage
+fi
+
+export USERNAME
+export PASSWORD
+
+bun -e "
+import { Database } from 'bun:sqlite';
+import { randomUUID } from 'crypto';
+
+const username = process.env.USERNAME;
+const password = process.env.PASSWORD;
+
+try {
+  const db = new Database('mal.db');
+  
+  const hash = await Bun.password.hash(password, { algorithm: 'bcrypt' });
+  
+  const id = randomUUID();
+  
+  const query = db.query('INSERT INTO user (id, username, password_hash) VALUES (\$id, \$username, \$hash)');
+  
+  query.run({
+    \$id: id,
+    \$username: username,
+    \$hash: hash
+  });
+  
+  console.log(\`✅ Brugeren '\${username}' blev oprettet med succes!\`);
+} catch (error) {
+  if (error.message.includes('UNIQUE constraint failed')) {
+    console.error(\`❌ Fejl: Brugeren '\${username}' findes allerede.\`);
+  } else {
+    console.error('❌ Database fejl:', error.message);
+  }
+  process.exit(1);
+}
+"