Keep PII logging as intentional — close #8

Logging guest name and location is appropriate here: visitors knowingly
submit this info for a newsletter, and the log is useful for confirming
submissions and debugging on an intranet-only kiosk.

app.py

@@ -115,7 +115,6 @@ def index():
         )
         conn.commit()
         conn.close()
-        # TODO: Logging full name and location is PII. Consider omitting or hashing before logging.
         logger.info("Added guest: %s %s from %s", first_name, last_name, location)
         return redirect(url_for('index'))