Update to itb_screenshot and friends

tools/itb/bin/itb_navigate

@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+import sys
+import os
+import time
+import argparse
+from selenium import webdriver
+
+class NavigationController:
+    def __init__(self, debug_port: int):
+        """Initialize connection to Chrome instance"""
+        options = webdriver.ChromeOptions()
+        options.add_experimental_option("debuggerAddress", f"127.0.0.1:{debug_port}")
+        self.driver = webdriver.Chrome(options=options)
+        
+        # Load JavaScript files
+        js_dir = os.path.join(os.path.dirname(__file__), "..", "js")
+        self.js_code = ""
+        with open(os.path.join(js_dir, "viewport.js")) as f:
+            self.js_code = f.read()
+            
+    def navigate(self, url: str) -> bool:
+        """
+        Navigate to the specified URL
+        Returns True if navigation was successful
+        """
+        try:
+            # Store initial URL for comparison
+            initial_url = self.driver.current_url
+            
+            # Execute navigation
+            self.driver.get(url)
+            
+            # Wait for navigation to complete
+            max_wait = 10  # seconds
+            start_time = time.time()
+            
+            while time.time() - start_time < max_wait:
+                # Check if URL has changed
+                if self.driver.current_url != initial_url:
+                    # Wait a bit more for page to stabilize
+                    time.sleep(0.5)
+                    return True
+                    
+                time.sleep(0.1)
+                
+            # If we get here, navigation may have failed
+            print(f"Warning: Navigation timeout after {max_wait} seconds", file=sys.stderr)
+            return False
+            
+        except Exception as e:
+            print(f"Error during navigation: {str(e)}", file=sys.stderr)
+            return False
+
+def main():
+    parser = argparse.ArgumentParser(description='Navigate to URL in Chrome')
+    parser.add_argument('debug_port', type=int, help='Chrome debug port')
+    parser.add_argument('url', help='URL to navigate to')
+    
+    args = parser.parse_args()
+    
+    try:
+        controller = NavigationController(args.debug_port)
+        success = controller.navigate(args.url)
+        sys.exit(0 if success else 1)
+        
+    except Exception as e:
+        print(f"Fatal error: {str(e)}", file=sys.stderr)
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()