feat(auth): implement authentication endpoints with registration and login functionality

database/factories/UserFactory.php

@@ -24,9 +24,12 @@ class UserFactory extends Factory
      */
     public function definition(): array
     {
+        $email = fake()->unique()->safeEmail();
+
         return [
             'name' => fake()->name(),
-            'email' => fake()->unique()->safeEmail(),
+            'username' => fake()->unique()->userName(),
+            'email' => $email,
             'mobile' => fake()->unique()->numerify('09#########'),
             'email_verified_at' => now(),
             'password' => static::$password ??= Hash::make('password'),

database/migrations/2026_06_05_151955_create_personal_access_tokens_table.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('personal_access_tokens', function (Blueprint $table) {
+            $table->id();
+            $table->morphs('tokenable');
+            $table->text('name');
+            $table->string('token', 64)->unique();
+            $table->text('abilities')->nullable();
+            $table->timestamp('last_used_at')->nullable();
+            $table->timestamp('expires_at')->nullable()->index();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('personal_access_tokens');
+    }
+};

database/migrations/2026_06_05_152100_add_username_to_users_table.php

@@ -0,0 +1,38 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Support\Str;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('users', function (Blueprint $table) {
+            $table->string('username')->nullable()->unique()->after('name');
+        });
+
+        foreach (DB::table('users')->orderBy('id')->get() as $user) {
+            $base = Str::slug(Str::before($user->email, '@'), '') ?: 'user';
+            $username = $base;
+            $counter = 1;
+
+            while (DB::table('users')->where('username', $username)->where('id', '!=', $user->id)->exists()) {
+                $username = $base.$counter;
+                $counter++;
+            }
+
+            DB::table('users')->where('id', $user->id)->update(['username' => $username]);
+        }
+    }
+
+    public function down(): void
+    {
+        Schema::table('users', function (Blueprint $table) {
+            $table->dropUnique(['username']);
+            $table->dropColumn('username');
+        });
+    }
+};