add antibot guard and retry

iaai_scraper/core/exceptions.py

@@ -0,0 +1,10 @@
+class ScraperError(Exception):
+    """Base scraper exception."""
+
+
+class AntiBotDetectedError(ScraperError):
+    """Raised when the target website appears to block automation."""
+
+
+class SiteStructureChangedError(ScraperError):
+    """Raised when the page shape changed and required data is missing."""

iaai_scraper/core/retry.py

@@ -7,6 +7,8 @@ from typing import Any
 
 from playwright.sync_api import Error, TimeoutError as PlaywrightTimeoutError
 
+from .exceptions import AntiBotDetectedError
+
 logger = logging.getLogger("iaai_scraper.retry")
 
 # Типы исключений, при которых retry имеет смысл.
@@ -16,6 +18,7 @@ RETRYABLE_EXCEPTIONS = (
     ConnectionError,
     OSError,
     TimeoutError,
+    AntiBotDetectedError,
 )