refactor: improve test structure and error handling in GPG tests

feat: enhance GPG plugin with TTY handling and agent priming

feat: add Makefile for test automation and update scripts in README and workflows

dev(local): prevent artifacts to dev's Neovim runtime during tests.

fix: argument handling in Nushell test script

docs: update README with testing instructions and add GitHub Actions workflow for automated tests

fix: remove trailing empty lines from GPG output for both decrypt and encrypt

feat: test scripts for lazyvim & vim.packer, bash, zsh & Nushell

refactor: bypasses user's shell

Merge pull request #12 from benoror/benoror-fts

doc(README): Include vim.pack and clarify lazy.nvim usage

Update README.md

doc(README): Add other filetypes

Merge pull request #11 from mantzu132/shada-backup-fix

backup off