Add FileShot.io — zero-knowledge secure file transfer for SRE workflows

[FileShot]

Hi! Suggesting FileShot.io for the tools or security section.

FileShot.io: https://fileshot.io
GitHub: https://github.com/FileShot/FileShotZKE
License: MIT

Practical use case in SRE contexts: sharing config files, private keys, runbooks, or incident reports with team members or on-call engineers without email or unencrypted channels.

AES-256-GCM client-side encryption. Key in URL fragment. Server never receives plaintext. MIT open source, self-hostable.