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database/migrations/2024_01_01_000003_create_documents_table.php

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+<?php
+// database/migrations/2024_01_01_000003_create_documents_table.php
+// Metadata dokumen utama — satu rekod per dokumen (bukan per versi)
+// Setiap dokumen boleh ada banyak versi dalam document_versions
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('documents', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('category_id')->constrained()->restrictOnDelete();
+            $table->string('title');
+            $table->text('description')->nullable();
+            $table->string('status')->default('draft');
+            // status: draft | processing | active | inactive | failed
+            $table->boolean('is_active')->default(false);
+            $table->date('effective_date')->nullable();  // tarikh kuat kuasa
+            $table->date('expiry_date')->nullable();     // tarikh luput (optional)
+            $table->json('tags')->nullable();            // ["lesen", "perniagaan"]
+            $table->string('language', 10)->default('ms');
+            $table->foreignId('created_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->foreignId('updated_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->timestamps();
+            $table->softDeletes();
+
+            $table->index(['category_id', 'is_active']);
+            $table->index('status');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('documents');
+    }
+};