feat: enhanced Magnit scraper with streaming mode and retry logic

- Add streaming mode for memory-efficient large catalog scraping
- Implement retry logic with exponential backoff
- Add auto session reinitialization on 403 errors
- Add configurable options (pageSize, maxProducts, rateLimitDelay)
- Add maxIterations protection against infinite loops
- Add retry.ts utility module with withRetry and withRetryAndReinit
- Update .env.example with new scraping options
- Add pgAdmin and CloudBeaver to docker-compose

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

.env.example

@@ -6,3 +6,14 @@ MAGNIT_STORE_CODE="992301"
 MAGNIT_STORE_TYPE="6"
 MAGNIT_CATALOG_TYPE="1"
 
+# Scraping Options
+MAGNIT_USE_STREAMING=true          # true = streaming mode (рекомендуется), false = legacy
+MAGNIT_PAGE_SIZE=50                # Размер страницы API (max 50)
+MAGNIT_MAX_PRODUCTS=                # Лимит товаров (пусто = без лимита)
+MAGNIT_RATE_LIMIT_DELAY=300        # Задержка между запросами (ms)
+MAGNIT_MAX_ITERATIONS=10000        # Защита от бесконечного цикла
+MAGNIT_HEADLESS=true               # Headless режим браузера
+
+# Resilience Options
+MAGNIT_RETRY_ATTEMPTS=3            # Количество попыток retry
+MAGNIT_REQUEST_TIMEOUT=30000       # Timeout запросов (ms)