Archive Python implementation

Fix e2e sync: only create main branch on detached HEAD

Merge pull request #23 from nicksenap/feat/plugin-sys

Fix Python e2e for PR CI: handle detached HEAD in grove clone

Add plugin documentation and update README

Add interactive preset mode and exit cleanly on picker cancel

Fix code review findings: security hardening and edge cases

Add plugin system: external binary discovery, install, and upgrade

Add performance benchmark and update README with new commands

Add kubectl-style ws/preset subcommands with list + show

Bump version to 0.13.3-go

Fix picker goroutine leak and gw go back-to-repos bug

Fix review findings: data race, goroutine leak, UTF-8 backspace

Perf: drop bubbletea, cache git env, dedupe walker, fix signal handling

Add always-on logging and fix picker for long lists