team members and invitations

database/migrations/2026_03_21_134803_create_project_invitations_table.php

@@ -0,0 +1,36 @@
+<?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('project_invitations', function (Blueprint $table) {
+            $table->id();
+            $table->foreignUlid('project_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('invited_by')->constrained('users')->cascadeOnDelete();
+            $table->string('email');
+            $table->string('role')->default('member'); // member, admin, owner
+            $table->string('token')->unique();
+            $table->timestamp('accepted_at')->nullable();
+            $table->timestamp('expires_at');
+            $table->timestamps();
+
+            $table->index(['email', 'project_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('project_invitations');
+    }
+};