Cut 2.2.0

Promote the Unreleased changelog section to 2.2.0 and leave a fresh
Unreleased placeholder above it. No code changes.

Highlights of this release:
- Six default behaviors moved to opt-in flags: exrc/secure, normal-mode
  ,F reindent, jk escape, Ctrl-S save, sudo-save, completion keymaps,
  auto-pairs, terminal keymaps.
- install.sh: interactive PlugClean (no longer silently nukes
  user-added plugins), pipx-first Python tool install (no more
  silent --break-system-packages on PEP 668 distros), interactive
  profile selection, --dry-run / --configure-only flags.
- ttimeoutlen tuned to 50ms on SSH/TTY (was 10ms unconditionally).
- Built-in plugin guards corrected: gzip/logiPat/rrhelper/spellfile
  needed unscoped loaded_X form, not g:loaded_X.
- get.sh: hardened bootstrap (refuses non-chopsticks repos, dry-run
  is side-effect-free, CHOPSTICKS_DEST for non-default install path).
- :ChopsticksStatus diagnostic command, profile-aware ,? cheat sheet,
  scripts/test.sh shared by CI and local maintainers.
- README/install.sh now state Vim 8.1+ accurately; install summary
  leads with ,? as the first onboarding hint.

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+## 2.2.0 — 2026-05-17
+
 ### Added
 
 - `~/.config/chopsticks.vim` local pre-load config for profile and user choices