Add search-exec subcommand for shell-line insertion (with asciinema demo)

[pancudaniel7]

• Summary
  - Proposes a new subcommand, pet search-exec, that searches snippets and prints the selection to stdout for direct insertion into the current shell line. This supports quick editing with native shell features and pressing Enter to execute (so the command lands in shell history).
  • Motivation
    • Many workflows require tweaking a snippet inline before running it. This is distinct from exec, which runs immediately. Inline insertion improves speed, composability, and history.
  • This is a DEMO with the implementation:
    • asciinema: link This can be improved but is an idea that can improve this tool

[RamiAwar]

Indeed a direction we want to go. Right now interactive tui is kind of forced but we will move away from this