Add debug-headers endpoint to check proxy headers

app.py

@@ -369,6 +369,19 @@ print(f"Loaded {len(all_harvard_sentences)} Korean prompts")
 # Initialize initial_sentences as empty - will be populated with unconsumed sentences only
 initial_sentences = []
 
+@app.route("/debug-headers")
+def debug_headers():
+    """Temporary endpoint to check request headers"""
+    headers_info = {
+        'X-Forwarded-For': request.headers.get('X-Forwarded-For'),
+        'X-Real-IP': request.headers.get('X-Real-IP'),
+        'CF-Connecting-IP': request.headers.get('CF-Connecting-IP'),
+        'remote_addr': request.remote_addr,
+        'access_route': list(request.access_route),
+        'get_client_ip()': get_client_ip(),
+    }
+    return jsonify(headers_info)
+
 @app.route("/")
 def arena():
     # Pass a subset of sentences for the random button fallback