feat: add legal opinions admin management

database/migrations/2026_05_08_000001_create_legal_opinion_categories_table.php

@@ -0,0 +1,28 @@
+<?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('legal_opinion_categories', function (Blueprint $table) {
+            $table->id();
+            $table->string('name')->unique()->comment('نام دسته‌بندی');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('legal_opinion_categories');
+    }
+};

database/migrations/2026_05_08_000002_create_legal_opinions_table.php

@@ -0,0 +1,35 @@
+<?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('legal_opinions', function (Blueprint $table) {
+            $table->id();
+            $table->string('opinion_number')->comment('شماره نظریه');
+            $table->date('opinion_date')->nullable()->comment('تاریخ نظریه');
+            $table->string('subject', 1000)->nullable()->comment('موضوع استعلام یا نظریه');
+            $table->longText('full_text')->comment('متن کامل نظریه و استعلام');
+            $table->string('issuing_authority')->nullable()->comment('مرجع صدور');
+            $table->foreignId('category_id')->constrained('legal_opinion_categories')->onDelete('cascade')->comment('شناسه دسته‌بندی');
+            $table->timestamps();
+
+            $table->unique(['opinion_number', 'category_id'], 'unique_opinion_category');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('legal_opinions');
+    }
+};

database/migrations/2026_05_08_000003_create_art_legal_opinion_table.php

@@ -0,0 +1,31 @@
+<?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('art_legal_opinion', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('art_id')->constrained('art')->onDelete('cascade');
+            $table->foreignId('legal_opinion_id')->constrained('legal_opinions')->onDelete('cascade');
+            $table->timestamps();
+
+            $table->unique(['art_id', 'legal_opinion_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('art_legal_opinion');
+    }
+};