- Add [tool.poetry] section with package-mode=false.
- Update project description.
- Change requires-python from "^3.14" to ">=3.11".
- Minor formatting in authors.
- Expand instructions.md with step-by-step manual encryption/decryption example using modular addition.
- Add padgen.py script to generate random one-time pads from /dev/urandom, formatted in groups.
- Add cleanup of temporary audio file in numbers_station.sh.
- Minor title update in site/index.html for clarity.
