Make playwright-stealth optional and fix import errors

src/crawler.py

@@ -155,7 +155,14 @@ class Crawler:
         
         try:
             from playwright.sync_api import sync_playwright
-            from playwright_stealth import stealth_sync
+            # Try importing stealth, if fails, continue without it but warn
+            try:
+                from playwright_stealth import stealth_sync
+                has_stealth = True
+            except ImportError:
+                logger.warning("playwright-stealth not found. Running without stealth mode.")
+                has_stealth = False
+                
             logger.info("[-] playwright_libraries_imported_successfully")
         except ImportError as e:
             logger.error(f"[!] playwright_import_failed: {e}")
@@ -194,8 +201,11 @@ class Crawler:
                     logger.info("[-] page_created")
                     
                     # Apply Stealth
-                    stealth_sync(page)
-                    logger.info("[-] stealth_sync_applied: 'navigator.webdriver' masked")
+                    if has_stealth:
+                        stealth_sync(page)
+                        logger.info("[-] stealth_sync_applied: 'navigator.webdriver' masked")
+                    else:
+                        logger.info("[-] stealth_disabled: library not found")
                     
                     # Block resources
                     page.route("**/*.{png,jpg,jpeg,gif,svg,woff,woff2,ttf,otf}", lambda route: route.abort())