chore: Реорганизация проекта - очистка и структурирование файлов

- Добавлена папка ДОКУМЕНТАЦИЯ с централизованным хранением всех руководств
- Перенесены утилитарные скрипты в myproject/scripts/
- Удалены временные файлы (current_settings.txt, old_settings.txt, nul)
- Добавлены celerybeat-schedule файлы в .gitignore
- Обновлен .env.example (удалены устаревшие настройки PLATFORM_SUPPORT)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

myproject/scripts/cleanup_stuck_photos.py

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+"""
+Скрипт для очистки застрявших записей фото в БД.
+Используется когда файлы были удалены вручную до обработки Celery.
+
+Использование:
+    docker exec -it mix_web python manage.py shell < cleanup_stuck_photos.py
+    
+Или интерактивно:
+    docker exec -it mix_web python manage.py shell
+    >>> exec(open('cleanup_stuck_photos.py').read())
+"""
+
+from django.db import connection
+from products.models import ProductPhoto, ProductKitPhoto, ProductCategoryPhoto, PhotoProcessingStatus
+from django.core.files.storage import default_storage
+
+# Укажите schema_name вашего тенанта
+SCHEMA_NAME = 'mixflowers'
+
+# Активируем схему
+connection.set_schema(SCHEMA_NAME)
+print(f"✓ Activated schema: {SCHEMA_NAME}")
+
+# Функция для проверки и очистки фото
+def cleanup_photo_model(model_class, model_name):
+    """Очищает записи с несуществующими файлами для указанной модели"""
+    print(f"\n{'='*60}")
+    print(f"Checking {model_name}...")
+    print(f"{'='*60}")
+    
+    photos = model_class.objects.all()
+    total = photos.count()
+    print(f"Total {model_name} records: {total}")
+    
+    if total == 0:
+        print(f"No {model_name} records found.")
+        return
+    
+    missing_files = []
+    
+    for photo in photos:
+        if photo.image:
+            file_path = photo.image.name
+            exists = default_storage.exists(file_path)
+            
+            if not exists:
+                missing_files.append({
+                    'id': photo.id,
+                    'path': file_path,
+                    'entity': photo.get_entity(),
+                    'photo': photo
+                })
+                print(f"  ✗ Photo #{photo.id}: File NOT found: {file_path}")
+            else:
+                print(f"  ✓ Photo #{photo.id}: File exists: {file_path}")
+    
+    if missing_files:
+        print(f"\n{'='*60}")
+        print(f"Found {len(missing_files)} {model_name} with missing files:")
+        print(f"{'='*60}")
+        
+        for item in missing_files:
+            print(f"\nPhoto ID: {item['id']}")
+            print(f"  Entity: {item['entity']}")
+            print(f"  Missing file: {item['path']}")
+        
+        # Спрашиваем подтверждение
+        print(f"\n{'='*60}")
+        response = input(f"Delete these {len(missing_files)} {model_name} records? (yes/no): ").strip().lower()
+        
+        if response == 'yes':
+            deleted_count = 0
+            for item in missing_files:
+                try:
+                    item['photo'].delete()
+                    deleted_count += 1
+                    print(f"  ✓ Deleted Photo #{item['id']}")
+                except Exception as e:
+                    print(f"  ✗ Error deleting Photo #{item['id']}: {e}")
+            
+            print(f"\n✓ Deleted {deleted_count} {model_name} records")
+        else:
+            print(f"\nSkipped deletion for {model_name}")
+    else:
+        print(f"\n✓ All {model_name} files exist. No cleanup needed.")
+
+# Очищаем каждую модель
+cleanup_photo_model(ProductPhoto, "ProductPhoto")
+cleanup_photo_model(ProductKitPhoto, "ProductKitPhoto")
+cleanup_photo_model(ProductCategoryPhoto, "ProductCategoryPhoto")
+
+# Проверяем застрявшие статусы обработки
+print(f"\n{'='*60}")
+print(f"Checking PhotoProcessingStatus...")
+print(f"{'='*60}")
+
+stuck_statuses = PhotoProcessingStatus.objects.filter(
+    status__in=['pending', 'processing']
+).order_by('-created_at')
+
+if stuck_statuses.exists():
+    print(f"Found {stuck_statuses.count()} stuck processing statuses:")
+    for status in stuck_statuses:
+        print(f"\n  Photo ID: {status.photo_id}")
+        print(f"  Model: {status.photo_model}")
+        print(f"  Status: {status.status}")
+        print(f"  Created: {status.created_at}")
+        print(f"  Task ID: {status.task_id}")
+    
+    response = input(f"\nMark these as 'failed'? (yes/no): ").strip().lower()
+    if response == 'yes':
+        updated = stuck_statuses.update(
+            status='failed',
+            error_message='Marked as failed during cleanup (file was deleted before processing)'
+        )
+        print(f"\n✓ Updated {updated} processing statuses to 'failed'")
+    else:
+        print("\nSkipped updating processing statuses")
+else:
+    print("✓ No stuck processing statuses found")
+
+print(f"\n{'='*60}")
+print("Cleanup complete!")
+print(f"{'='*60}")