The chat command now always performs a fresh scan and returns only the primary answer, with alternatives displayed cleanly.
Chat results are saved under a consistent file name (assembly_chat.txt), making them easier to locate.
PDF verification now shows a clear validation status (valid/invalid) with a simple message and any signature names.
Legacy Windows code‑page encodings are supported out‑of‑the‑box, so documents using older character sets open without errors.
SVG files are saved with simpler names (no generation numbers), making them easier to find and manage.

Enhanced Chat Scan and File Handling