Add all files

extensions/Others/KnowledgeBase/database/migrations/2024_01_01_000000_create_ext_kb_categories_table.php

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+<?php
+
+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('ext_kb_categories', function (Blueprint $table) {
+            $table->engine = 'InnoDB';
+            $table->id();
+            $table->string('name');
+            $table->string('slug')->unique();
+            $table->text('description')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('ext_kb_categories');
+    }
+};

extensions/Others/KnowledgeBase/database/migrations/2024_01_01_000001_create_ext_kb_articles_table.php

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+<?php
+
+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('ext_kb_articles', function (Blueprint $table) {
+            $table->engine = 'InnoDB';
+            $table->id();
+            $table->foreignId('category_id')
+                ->constrained('ext_kb_categories')
+                ->onDelete('cascade');
+            $table->string('title');
+            $table->string('description');
+            $table->text('content');
+            $table->boolean('is_active')->default(true);
+            $table->dateTime('published_at')->nullable();
+            $table->string('slug')->unique();
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('ext_kb_articles');
+    }
+};