Implement ticket creation and backlog

database/migrations/2026_03_25_004100_create_tickets_table.php

@@ -0,0 +1,38 @@
+<?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('tickets', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('project_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('ticket_type_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('ticket_priority_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('board_column_id')->nullable()->constrained()->nullOnDelete();
+            $table->unsignedInteger('sequence_number');
+            $table->string('ticket_key')->unique();
+            $table->string('title');
+            $table->text('description')->nullable();
+            $table->text('acceptance_criteria')->nullable();
+            $table->timestamps();
+
+            $table->unique(['project_id', 'sequence_number']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('tickets');
+    }
+};