UI: tab-bar navigation — drop the hamburger

Replace Menu.svelte (hamburger) everywhere with tab-bar navigation:
- Settings hub (SettingsHub) from the lobby ⚙️ tab: Settings/Profile/
  Friends/About as in-place tabs, back → lobby; the lobby ⚙️ badge counts
  incoming friend requests (invitations keep their own lobby section).
- Comms hub (CommsHub) from the move-history 💬: Chat/Dictionary tabs,
  back → game; Dictionary only while the game is active.
- Game menu items relocate into the open history: 🏁 leave / 📤 export in
  the header, 🤝 add-friend per opponent card, 💬 comms; unread chat is
  badged on the score bar + the 💬.
- TapConfirm (tap → fading ✅ → tap) replaces the Skip/Hint press-and-hold
  popovers and drives the add-friend confirm.
- Fix the move-history "jump": the slid board is inert and the stage can't
  scroll, so a swipe up genuinely closes the history.

Remove Menu.svelte + HoldConfirm.svelte. Docs: UI_DESIGN, FUNCTIONAL(+ru),
PRERELEASE. UI check/unit/build/bundle/e2e (Chromium+WebKit) all green.

docs/FUNCTIONAL.md

@@ -68,7 +68,9 @@ account is kept and the guest's games move into it. A merge is blocked only whil
 two accounts share a game still in progress.
 
 ### Lobby & matchmaking
-Bottom tab menu: **my games**, **profile**. The **my games** list groups games into three
+The lobby lists **my games** and offers a bottom tab bar — new game, statistics, and a
+**⚙️ settings** tab opening the settings hub (settings, profile, friends, about). The
+**my games** list groups games into three
 sections — *your turn*, *opponent's turn* and *finished* (empty sections are hidden) — and
 orders them so the games awaiting your move come first, the longest-waiting on top, while
 opponent-turn and finished games are most-recent first; it renders as a compact,
@@ -128,18 +130,20 @@ digits, valid for twelve hours), or send a **request to someone you have played
 with** — they accept, ignore it (a request lapses after thirty days and can then be
 re-sent), or decline (a decline blocks further requests from you until they hand you
 a code). Cancelling your own pending request withdraws it; unfriending removes the
-friendship. In a game, an **add to friends** item for each opponent mirrors the live
-relationship: it reads *request sent* (disabled) while a request is pending or was
-declined, and *in friends* once accepted — updating in place the moment the opponent
-answers, and staying correct across reloads. Block globally — switch off incoming chat
+friendship. In a game, each opponent's score card carries an **add-to-friends 🤝** control (while the
+move history is open) that mirrors the live relationship: it confirms with a tap on a fading
+✅ (the card reads *Add friend?* while confirming), goes **disabled** while a request is
+pending or was declined, and **disappears** once you are friends — updating in place the
+moment the opponent answers, and staying correct across reloads. Block globally — switch off incoming chat
 and/or friend requests — and block individual players (a per-user block hides that
 person's chat and stops requests and game invitations both ways; it also ends any
 existing friendship). Per-game chat is for quick reactions: messages are short
 (up to 60 characters) and may not contain links, email addresses or phone numbers,
 even disguised. Nudge the player whose turn is awaited at most once per hour (the
 nudge is part of the game chat); the out-of-app push is delivered via the platform.
-Chat and the word-check tool open as their **own screens** (with a back to the game), and a
-new chat message raises an **unread badge** on the game's menu until the chat is opened.
+Chat and the word-check tool share one **comms screen** with **💬 chat** / **🔎 dictionary**
+tabs, reached from the 💬 in the move-history header (with a back to the game); a new chat
+message raises an **unread badge** on the game's score bar and the 💬 until the chat is opened.
 
 ### Profile & settings
 Edit the display name (letters joined by a single space / "." / "_" separator, with an

docs/FUNCTIONAL_ru.md

@@ -70,7 +70,9 @@ nudge) приходят от бота **этой партии** — по язы
 запрещено, только пока у аккаунтов есть общая незавершённая игра.
 
 ### Лобби и подбор
-Нижнее tab-меню: **мои игры**, **профиль**. Список **мои игры** разбит на три секции —
+В лобби — список **мои игры** и нижний tab-bar (новая игра, статистика и вкладка
+**⚙️ настройки**, открывающая хаб настроек — настройки, профиль, друзья, о программе).
+Список **мои игры** разбит на три секции —
 *твой ход*, *ход соперника* и *завершённые* (пустые секции скрыты) — и упорядочен так,
 что игры, ждущие твоего хода, идут первыми, дольше всего ждущие сверху, а игры на ходу
 соперника и завершённые — самые свежие сверху; отображается компактным списком с
@@ -132,10 +134,11 @@ nudge) приходят от бота **этой партии** — по язы
 тому, с кем вы играли** — он принимает, игнорирует (заявка истекает через тридцать
 дней, после чего её можно отправить снова) или отклоняет (отказ блокирует ваши
 повторные заявки, пока он сам не передаст вам код). Отмена своей висящей заявки
-снимает её; удаление расторгает дружбу. В партии пункт меню **в друзья** для каждого
-соперника отражает живое отношение: он показывает *заявка отправлена* (неактивный),
-пока заявка висит или была отклонена, и *в друзьях* после принятия — обновляясь на месте
-в момент ответа соперника и оставаясь верным после перезагрузки. Глобальная блокировка — отключить входящие
+снимает её; удаление расторгает дружбу. В партии карточка счёта каждого соперника несёт контрол
+**в друзья 🤝** (при открытой истории ходов), отражающий живое отношение: он подтверждается
+тапом по затухающей ✅ (карточка показывает *В друзья?* во время подтверждения), становится
+**неактивным**, пока заявка висит или была отклонена, и **исчезает** после принятия —
+обновляясь на месте в момент ответа соперника и оставаясь верным после перезагрузки. Глобальная блокировка — отключить входящие
 чат и/или заявки —
 и блокировка конкретного игрока (пер-юзер блок скрывает его чат и запрещает заявки
 и приглашения в игру в обе стороны, а также расторгает уже имеющуюся дружбу). Чат
@@ -143,8 +146,9 @@ nudge) приходят от бота **этой партии** — по язы
 содержать ссылок, email и телефонов, даже завуалированных. Nudge ожидаемого
 соперника — не чаще раза в час (nudge — часть игрового чата); внеприложенческий
 push доставляется через платформу.
-Чат и инструмент проверки слова открываются **отдельными экранами** (с кнопкой «назад» в
-партию), а новое сообщение в чате рисует **бейдж непрочитанного** на меню партии до открытия чата.
+Чат и инструмент проверки слова — один **экран связи** со вкладками **💬 чат** / **🔎 словарь**,
+открываемый по 💬 в шапке истории ходов (с кнопкой «назад» в партию); новое сообщение рисует
+**бейдж непрочитанного** на строке счёта партии и на 💬 до открытия чата.
 
 ### Профиль и настройки
 Редактирование отображаемого имени (буквы, разделённые одиночным пробелом / «.» /

docs/UI_DESIGN.md

@@ -23,16 +23,24 @@ Login uses `Screen`.
 
 - **Back**: a thin, compact `<` drawn from two rotated CSS borders (`Header.svelte`
   `.chev`) — lighter than a glyph.
-- **Hamburger**: a CSS three-bar (`Menu.svelte`), deliberately larger; opens a dropdown
-  of items (lobby: Friends/Profile/Settings/About; game: History/Chat/Check word, plus
-  *Export GCG* on a finished game and *Add to friends* per opponent, then Drop game). A
-  red count **badge** rides the hamburger (and the lobby *Friends* item) for pending
-  incoming friend requests + invitations; the same dot style serves any future
-  notification count.
+- **No hamburger**: navigation is entirely bottom tab bars (the former `Menu.svelte`
+  dropdown is gone — it fought the Telegram-fullscreen layout, where it had to be re-centred).
+  Destinations beyond the lobby live behind **hub screens** reached from a tab: a ⚙️
+  **Settings hub** (`screens/SettingsHub.svelte`, the lobby's ⚙️ tab) and an in-game
+  **comms hub** (`game/CommsHub.svelte`, the history's 💬). A hub owns one nav bar + one
+  bottom tab bar whose tabs switch its body **in place** (state, not navigation), so the
+  back control always returns to the hub's parent (Settings → lobby, comms → game). Settings
+  hub tabs: ⚙️ Settings / 👤 Profile / 🤝 Friends / ℹ️ About (Friends hidden for guests);
+  comms hub tabs: 💬 Chat / 🔎 Dictionary (Dictionary only while the game is active). The
+  routes `/settings|/profile|/friends|/about` and `/game/:id/{chat,check}` survive as hub
+  entry points (so a Telegram friend-code deep-link still lands on the Friends tab).
 - **Tab bar** (`TabBar.svelte`): square, borderless, evenly distributed buttons — a large
-  emoji icon over a tiny truncated label. A press highlights a rounded **square** behind
-  the icon (slightly larger than it) until release; spacing keeps adjacent labels from
-  touching. No text selection on nav / tab-bar / buttons (`user-select: none`).
+  emoji icon over a tiny truncated label (hub tabs are **icon-only**). A press highlights a
+  rounded **square** behind the icon; a hub's **selected** tab stays highlighted (a filled
+  square with an accent underline). A red count **badge** rides the icon's corner — on the
+  lobby ⚙️ tab and the hub's 🤝 Friends tab for pending incoming friend requests (invitations
+  keep their own lobby section), and on the Hint tab for the remaining count. No text
+  selection on nav / tab-bar / buttons (`user-select: none`).
 - **Screen transitions** (`App.svelte`): navigation slides directionally — a
   screen entered from the lobby flies in from the right; returning to the lobby reveals it
   from the left (back). Transitions are local (so they do not play on first load) and
@@ -71,8 +79,9 @@ Login uses `Screen`.
   hovering a dragged tile never jumps the board. On touch the first tile placement auto-zooms
   in centred on the target, and **holding a dragged tile over a cell ~1 s** auto-zooms there
   the first time. The swipe-to-open-history gesture stays dropped (it fought native scroll);
-  history opens from the menu or a tap on the players plaque (below). A **hint** auto-zooms
-  centred on the hint's placement, not the top-left.
+  history opens on a **tap of the score bar** and closes on a tap or an **upward swipe** of
+  the then-inert board (below). A **hint** auto-zooms centred on the hint's placement, not
+  the top-left.
 - **Placing & recall** (`Game.svelte`): a rack tile is placed by tap-then-tap or by
   dragging it onto a cell; while a dragged tile is carried over the board, the aimed-at empty
   cell is **highlighted as a drop target** (an accent ring). A pending tile is taken back by a
@@ -81,11 +90,21 @@ Login uses `Screen`.
   recalled tile returns to its original rack slot.
 - **Players plaque & history** (`Game.svelte`): the seats above the board share
   the width evenly; the seat whose turn it is is **raised** (a drop shadow on its sides)
-  while the others read **sunk in** (an inset shadow). A tap anywhere on the plaque toggles
+  while the others read **sunk in** (an inset shadow). A tap on the plaque toggles
   the **move history** — a fixed-height slide-down drawer whose bottom border (and its
   shadow) pins to the board as the board slides down, instead of tracking the table as
   moves accumulate; its scrollbar gutter is reserved so the centred word column does not
-  jitter. A move's row lists every word it formed (the main word first).
+  jitter. A move's row lists every word it formed (the main word first). While the history
+  is open the **slid board is inert** and the stage cannot scroll, so the whole board reads
+  as a **tap-or-swipe-up-to-close** surface — closing genuinely clears the open state (it no
+  longer merely scrolls the board out of view, which used to leave a stale-open state that
+  made a follow-up plaque tap "jump" the board). The drawer carries its own **header**: a 🏁
+  **Drop game** (or 📤 **Export GCG** on a finished game) at the left and the comms 💬
+  (badged with unread chat) at the right, icon-only. Each **opponent**'s card also gains a
+  🤝 **add-friend** control (non-guests; hidden once a friend, disabled once requested) that
+  confirms via the fading-✅ tap, swapping the card's score for "Add friend?" while armed
+  (see Controls); the name and score stay centred — the 🤝 is pinned to the card's edge.
+  Unread chat is also badged on the score bar itself, so it shows with the history closed.
 - **Vertical fit & keyboard**: when the game does not fit the viewport, only the
   board area scrolls vertically (`Screen` `column` mode; the score bar, status, rack and tab
   bar stay fixed), while zoom keeps its own scroll. The check-word dialog opens in
@@ -107,9 +126,12 @@ Login uses `Screen`.
 
 ## Controls
 
-- **HoldConfirm** (`components/HoldConfirm.svelte`): the shared press-and-hold control. A
-  short tap opens a small popover above the button; a ~0.7 s hold runs the primary action
-  immediately. Used by the **Skip** and **Hint** tabs (each confirmed by an **Ok ✅** popover).
+- **TapConfirm** (`components/TapConfirm.svelte`, logic in `lib/tapconfirm.ts`): the shared
+  tap-to-confirm control. A first tap arms a ~2 s window showing a **fading ✅** (no fade
+  under reduce-motion, but the window still holds); a tap on the ✅ within it confirms,
+  otherwise it reverts. Used by the **Skip** and **Hint** tabs (the icon morphs to ✅, no
+  label — replacing the old press-and-hold popover) and the in-game **add-friend 🤝**. The
+  **Drop game** action keeps its `Modal` confirmation (a destructive, less-frequent action).
 - **MakeMove / Reset**: when ≥1 tile is pending the rack collapses its used slots
   and shifts left, a **borderless ✅ icon button** (styled like a tab, not a filled accent
   button) beside the rack commits the move — no popover, and disabled while the pending word
@@ -140,7 +162,11 @@ IV 🏅; active games show Your move 🟢 / Opponent's move ⏳; invitations use
 
 ## Social, account & history surfaces
 
-- **Friends** (`screens/Friends.svelte`, from the lobby menu): an "add a friend" block
+- **Settings hub** (`screens/SettingsHub.svelte`, the lobby ⚙️ tab): one nav bar + a bottom
+  tab bar over four bodies — ⚙️ Settings, 👤 Profile, 🤝 Friends, ℹ️ About — switched in
+  place; back always returns to the lobby. Guests see all but Friends. The lobby ⚙️ badge and
+  the 🤝 tab badge both show the pending incoming-friend-request count.
+- **Friends** (`screens/Friends.svelte`, the Settings hub's 🤝 tab): an "add a friend" block
   pairing a code **input** with a **Show my code** action that reveals a large 6-digit
   code + its expiry; then the incoming **requests** (Accept / Decline), the **friends**
   list (Remove / Block), and a **blocked** list (Unblock). Durable accounts only — a
@@ -163,12 +189,12 @@ IV 🏅; active games show Your move 🟢 / Opponent's move ⏳; invitations use
   the icon copies it. Flex text inputs carry `min-width:0` so they shrink instead of
   overflowing in Safari.
 - **History / GCG**: the in-game slide-down history gains the running total per move;
-  *Export GCG* shares or downloads the `.gcg` file and appears only once the game is
-  finished.
-- **Finished game**: the board keeps no last-word highlight and no zoom; the menu drops
-  *Check word* and *Drop game*; and the footer (rack + tab bar) is **drawn but inert**
-  (greyed, non-interactive) rather than hidden, so the layout does not jump. Chat
-  send / nudge are the ⬆️ / 🛎️ icons.
+  *Export GCG* (the 📤 in the history header) shares or downloads the `.gcg` file and
+  appears only once the game is finished.
+- **Finished game**: the board keeps no last-word highlight and no zoom; the history header
+  offers *Export GCG* (not *Drop game*) and the comms hub hides the 🔎 *Dictionary* tab; and
+  the footer (rack + tab bar) is **drawn but inert** (greyed, non-interactive) rather than
+  hidden, so the layout does not jump. Chat send / nudge are the ⬆️ / 🛎️ icons.
 
 ## Caveat