- UI_DESIGN: mobile immersive fullscreen on launch (desktop keeps full-size); the
close confirmation is now mobile-only; friend-code share-via-Telegram deep-link
(per-bot, by service language), the friendly self-redeem note, and the
outdated-link lobby notice.
- ARCHITECTURE: the service language rides the Session wire so the client builds
the per-bot invite link; the friend code is shared as a startapp deep-link with
graceful spent/expired handling.
Replace the shared-link &mode=fullscreen (which would also force fullscreen on
desktop) with an imperative requestFullscreen() on launch, gated to mobile
clients (ios/android/android_x) — mirroring how Telegram's own Mini Apps go
immersive on phones while desktop keeps the bot's full-size window. It triggers
the existing fullscreenChanged -> safe-area resync; a no-op on clients predating
Bot API 8.0.
- Shared invite links open the Mini App fullscreen (mode=fullscreen), so a
shared link matches the bot's own fullscreen launch.
- A used or expired invite deep-link now lands the visitor in the lobby with a
gentle notice pointing at the right bot (@<username>, by service language),
instead of a red "code invalid/expired" error on the Friends screen.
- The in-game close confirmation is armed only on Telegram mobile clients; on
desktop (tdesktop/macOS/web) it is skipped, where the "changes may not be
saved" dialog is just noise (drafts auto-save).
- The share caption is now in the bot's language: 'Давай играть в Эрудит!' (ru bot),
"Let's play Scrabble!" (en bot) — picked by the session service language, not the
interface language.
- Redeeming your own invite (deep link or manual) no longer shows the scary
'can't do that to yourself' error; it shows a friendly neutral note instead.
The friend-code 'share' was an <a> that just opened the bot. Make it a real share:
Telegram's native share-to-chat picker inside the Mini App (openTelegramLink +
t.me/share/url), the system share sheet (navigator.share) on the web, else copy the
link. The shared deep link points at the same bot the player is in — it picks
VITE_TELEGRAM_LINK_EN/_RU by the session's service language, falling back to the
single VITE_TELEGRAM_LINK. Adds the per-bot build args across Dockerfile / compose /
ci.yaml / .env / docs; PLAN TODO-5 updated.
Thread the Telegram bot's service language (en/ru) from the session mint response
through the gateway into the FlatBuffers Session, so the UI knows which bot the
player signed in through. handleTelegramAuth refreshes the account's service
language onto the response before minting (it was set after the fetched copy).
Empty for a non-Telegram login.
Ilia Denisov