Util scripts

[cblgh]

Little reminder to put together public versions of scripts I have lying around:

• backup-script.sh - takes a proper sqlite3 backup using the .backup command
• release.sh -- makes a binary, includes docs and README, tar.gz it all and labels with a date
  • note: can enable cerca on other platforms (win, osx) despite cgo using zig toolchain!
• deploy.sh - what i use to put together a new binary using the latest code and place it where it's used to serve https://forum.merveilles.town