v0.2.1

Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com

Version intentionally not bumped. Tests: feedback-d2; routing/robustness updated.

• D2-6: document that Select.itemId must be collision-free as a string.

  build time, instead of warning then letting Telegram reject the send into onError.

• D2-5: over-long callback_data now throws a clear error naming the widget at

  instead of leaving a no-op stub on the shared gramio context.

• D2-4: scope the reply-keyboard ctx.answer shim — restore it after routing

  (was mutated in memory but dropped, only relevant with StartMode.NewStack).

• D2-3: persist the currentId reselection on the stale/denied return paths

  headlessCtx also fleshes from.is_bot.

  from with a locale, or t) so getters/i18n needing more than from.id work;

• D2-1: background(bot, key, overrides?) — enrich the headless ctx (e.g. real

  createDialogs().withLock so background() callers can serialize against taps.

  (_reloadStore), so concurrent updates can't clobber each other. Exposed as

  update path now locks per stack key and re-reads the store under the lock

fix: address v0.2.0 feedback round 2 (background/persist/routing hardening)- D2-2: lost-update race — StackRepository.withLock keyed async mutex; the live

chore(release): v0.2.1Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com
Full Changelog: v0.2.0...v0.2.1