Add migration files for language and translation management: Created migrations for languages, translations, and user_languages tables to support the universal translation system. Each migration includes necessary fields, constraints, and indexes to ensure efficient data handling and relationships.

database/migrations/2025_10_01_053644_create_languages_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
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('languages', function (Blueprint $table) {
+            $table->id();
+            $table->string('code', 10)->unique()->comment('Language code (tr, en, de)');
+            $table->string('name', 100)->comment('Language name in English');
+            $table->string('native_name', 100)->comment('Language name in native language');
+            $table->string('flag', 10)->nullable()->comment('Flag emoji or icon code');
+            $table->enum('direction', ['ltr', 'rtl'])->default('ltr')->comment('Text direction');
+            $table->boolean('is_active')->default(true)->comment('Is language active?');
+            $table->boolean('is_default')->default(false)->comment('Is default language?');
+            $table->integer('sort_order')->default(0)->comment('Display order');
+            $table->foreignId('created_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->foreignId('updated_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->timestamps();
+            $table->softDeletes();
+            
+            $table->index(['is_active', 'sort_order']);
+            $table->index('code');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('languages');
+    }
+};

database/migrations/2025_10_01_053653_create_translations_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
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('translations', function (Blueprint $table) {
+            $table->id();
+            $table->string('translatable_type')->comment('Model class name');
+            $table->unsignedBigInteger('translatable_id')->comment('Model ID');
+            $table->string('language_code', 10)->comment('Language code');
+            $table->string('field_name', 100)->comment('Field name to translate');
+            $table->longText('field_value')->nullable()->comment('Translated value');
+            $table->enum('status', ['draft', 'review', 'approved', 'published'])->default('draft')->comment('Translation status');
+            $table->integer('version')->default(1)->comment('Translation version');
+            $table->foreignId('created_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->foreignId('updated_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->foreignId('approved_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->timestamp('approved_at')->nullable();
+            $table->timestamp('published_at')->nullable();
+            $table->timestamps();
+            $table->softDeletes();
+            
+            // Indexes for performance
+            $table->index(['translatable_type', 'translatable_id']);
+            $table->index(['language_code', 'status']);
+            $table->index(['created_by', 'status']);
+            $table->index('approved_by');
+            
+            // Unique constraint: one translation per model+field+language
+            $table->unique(['translatable_type', 'translatable_id', 'language_code', 'field_name'], 'unique_translation');
+            
+            // Foreign key for language
+            $table->foreign('language_code')->references('code')->on('languages')->onDelete('cascade');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('translations');
+    }
+};

database/migrations/2025_10_01_053657_create_user_languages_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
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('user_languages', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('user_id')->constrained('users')->onDelete('cascade');
+            $table->string('language_code', 10);
+            $table->boolean('can_create')->default(true)->comment('Can create content in this language');
+            $table->boolean('can_edit')->default(true)->comment('Can edit content in this language');
+            $table->boolean('can_approve')->default(false)->comment('Can approve translations in this language');
+            $table->boolean('can_publish')->default(false)->comment('Can publish content in this language');
+            $table->timestamps();
+            
+            // Unique constraint: one entry per user+language
+            $table->unique(['user_id', 'language_code']);
+            
+            // Foreign key for language
+            $table->foreign('language_code')->references('code')->on('languages')->onDelete('cascade');
+            
+            // Indexes
+            $table->index(['user_id', 'language_code']);
+            $table->index('language_code');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('user_languages');
+    }
+};