Layout engine:
- Non-doubles are landscape (w=48, h=24) in horizontal chains
- Doubles are portrait (w=24, h=48) perpendicular to horizontal chains
- Tiles positioned touching each other with GAP=3px between
- Properly computes half-extents for advance distance
- Endpoints positioned beyond last tile in chain direction

Tile renderer:
- Uses w>h to detect landscape orientation (no rotation param needed)
- Left/right pips in landscape, top/bottom pips in portrait
- Doubles get accent background

Board:
- Ghost and animate tiles compute orientation from layout dirIdx
- No rotation applied (dimensions are pre-computed correctly)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Empty board now returns hit on any board tap when active endpoint set
- Status text updates immediately when tile is selected/deselected
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Theme:
- Replace green felt table with dark navy (#0f1623) matching app identity
- Gold accent (#E4AC38) replaces green for highlights and UI elements
- Tiles have warm ivory (#F5F0E8) with subtle shadows on dark bg
- All UI bars/controls use app's #0f0f1e background

Layout engine rewrite:
- Chain starts from center, grows outward naturally
- Proper double placement (perpendicular to chain direction)
- Non-doubles align correctly with chain direction
- Snake path with smooth turns at virtual bounds

Interaction (tap-to-confirm):
- Tap tile → highlights valid endpoints on board
- Tap highlighted endpoint → confirms placement
- NEVER auto-places on tap — always requires explicit destination
- Tap same tile again → deselects it
- Status shows "اختر مكان الوضع" when tile is selected

Board improvements:
- Pan gesture: drag on empty board area to scroll
- Auto-zoom: smoothly zooms out as chain grows large
- Endpoint glow uses gold dashed-ring indicator
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

When touchend fires without updating pointer coordinates (common in
headless environments and some mobile browsers), the proxy position
is used to re-check endpoint hit test before deciding placement.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Previously, tapping a tile that could play on both ends would highlight
board endpoints and require a separate canvas tap. Now a second tap on
the same tile auto-places it on the right end, matching mobile UX
expectations.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Added touchend listener as fallback in DominoDrag for browsers/envs
  where pointerup doesn't fire after touch events
- Added auto-pass (1.5s timeout) when player is blocked and boneyard
  is empty — prevents game from stalling
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Styles were injected before hand/drag were instantiated, resulting in
zero-dimension tiles (CSS classes never added to page).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Full mobile domino implementation with all 6 phases:
- Canvas board with snake-path layout, endpoint glow, ghost preview
- HTML fan hand with drag-and-snap + tap-to-play controls
- 3-level bot AI (beginner/intermediate/expert) with server records
- Live multiplayer via polling (match-live.js integration)
- Emote system, resign sync, disconnect handling
- Multi-round scoring (first to 100), round overlays
- Server API (domino-match.php) with Elo, coins, XP rewards
- Bot difficulty picker, friend challenge flow, lobby integration
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- match-live.js: always forward poll data to game (not only on move_count change)
  This was the root cause — resign/draw don't increment move_count, so the
  game never processed the status change or game_state update
- game.php: all match operations now use supabaseService() to bypass RLS
  (handleGameMove, handleResign, handleComplete all failed silently with user token)
- Add dedicated 'draw' action in game.php that atomically marks match completed
- Draw acceptance now calls action:'draw' instead of writing game_state only
- handleResign validates match isn't already completed (prevents double-resign)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Add friend_messages table + chat.php API (send, history, unread)
- Add chat scene with real-time polling, day dividers, invite from chat
- Add game lobby scene (waiting room before match starts)
- Add "Challenge Friend" button on play home screen
- Add challenge-friend scene with friend picker + game/time selector
- Remove ad banner from chess, polish layout for all screen sizes
- Fix Ludo layout (broken #ludo-wrap div, board now fills space properly)
- Route invite acceptance through lobby instead of direct game push
- Add 💬 chat button on friend cards in social scene
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Add friend button shows success/already-sent/already-friends status
- Profile button navigates to player profile view
- Report button shows confirmation before dismissing
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Friendship bugs fixed:
- Accept now uses service key (bypasses RLS that blocked updates)
- Duplicate request prevention (checks both directions)
- Reject uses proper POST action instead of broken DELETE call
- Cleaned up stale duplicate rows in DB

New features:
- Friend invite system: challenge dialog with game/time selection
- Match created as 'friendly' with status 'waiting'
- Opponent sees invite banner (polls every 5s), can accept/decline
- Accept starts the match, both players enter the game
- 2-minute invite expiry
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Daily rewards:
- Server now tracks streak, prevents double-claim, resets on missed day
- GET endpoint returns current state (streak, claimed status, today's reward)
- Updates profile daily_streak + last_daily_reward columns
- Frontend fetches state from server instead of relying on local store

Achievements:
- New scene with category filters, progress bars, tier badges
- POST check action recalculates all progress from player stats
- game.php now tracks win_streak and checks achievements on game end
- Rewards (coins/XP) auto-granted when achievement completes

Challenges:
- Claim tracking via economy_transactions prevents double-claims
- Fixed column name (reason, not description)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Players can now fill all profile fields (bio, country, city, FIDE info)
from their profile tab and apply for organizations with document proof.
Also fixes avatar.php to use SERVICE_KEY for storage uploads.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Eliminate double polling: removed game.js own poller, use match-session's
  single 2s poll via handleLivePollData callback (halves network requests)
- Send last_move (from/to/san/promotion) in game_state so opponent gets
  exact move data — fixes castling, en passant, promotion animations
- Opponent moves now animate (piece slides) instead of board snap
- Capture particles now fire on opponent's captures too
- Castling sound+haptic plays for opponent's castles
- Draw flow: sender sees "sent" confirmation, receiver sees accept/deny
  dialog (30s timeout), both sides see result via game_state merge
- Emote dedup: timestamp tracking prevents repeated display on same emote
- Emotes use correct emoji lookup (getEmojiForKey) instead of 3 hardcoded
- Polling runs even during player's turn (emotes + draws must arrive anytime)
- Game end detection covers draw result ('draw' + 'aborted')
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Draw offer now syncs: sender sees confirmation, receiver sees
  accept/deny dialog with 30s timeout
- Emotes now show the correct emoji (was hardcoded to 3 mappings,
  now uses actual emote key lookup)
- Emote dedup via timestamp tracking — no repeated display
- game_state is now MERGED server-side instead of overwritten,
  so emotes don't wipe draw offers and vice versa
- Polling runs regardless of whose turn it is (emotes/draws
  need to arrive during your own turn too)
- Draw accept/decline response properly detected by offerer
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Apply radial-gradient mask for smooth vignette fade on all edges.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Replace shop tab with tournaments hub. Players can browse all tournaments,
filter by status, register, and launch pending matches directly from the hub.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Add chess piece upload UI to admin/branding.php (12 slots: white + black)
- Fix loadPieceImages race condition in board renderer
- Add tournament system module (Swiss, knockout, arena)
- Add promo banner (1m×3m display) and video assets
- Add 2-min display video script
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Fix: clicking friends tab now always shows friends scene (not
  notifications). Tab click resets to root when already active.
- Friends list: sorted online-first, shows count, retry on error
- Pending requests: fetches requester profiles (name, avatar, level)
  instead of showing raw UUIDs
- Search: searches both username and display_name, debounced input
- Online tab: auto-refreshes every 15s
- Activity feed: timeAgo formatting, action icons
- API: added 'profiles' action for batch profile lookups, search
  now matches display_name too
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

The matches table requires these NOT NULL columns. Set match_type
to 'tournament' and parse time_control string for clock values.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

PostgREST auto-decodes JSONB columns, so json_decode() fails when
the value is already an array. Added is_array() checks before decoding.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- HUD badge on rank tab for pending tournament matches
- Bracket API + horizontal scrollable bracket visualization (RTL)
- Arena mode: join/seek/pair/play loop with live standings
- Tournament lobby with countdown timer + player grid
- Live tournament spectating with auto-refresh pairings
- Format-specific tabs in tournament detail (bracket/arena)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Players can now play tournament matches from the app. Adds create-or-join
API, realtime pairing notifications, auto-result reporting to Swiss API,
and tournament-aware chess result screen.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Categorized into Bullet, Blitz, Rapid, and Classical with Arabic labels:
- Bullet: 1+0, 1+1, 2+1
- Blitz: 3+0, 3+2, 5+0, 5+3, 5+5
- Rapid: 10+0, 10+5, 15+10, 20+0, 30+0
- Classical: 45+45, 60+0, 90+30
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Ad area now flex:1 (absorbs all dead space above the board).
Hidden by default — only shown when an active campaign is loaded.
Game UI pushed further down for thumb reach.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Add ad banner slot in the dead space above the board
- Move emote toggle button inline with player profile data
- Emote panel now opens below player bar (no more fixed overlay)
- Reduce top spacer to flex:0.4 so game sits near-center (slightly bottom-biased)
- Add api/ads.php endpoint to serve active campaigns from ad_campaigns table
- Ad system tracks impressions and filters by slot/game targeting
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Uses a flex:1 spacer div at the top of the layout instead of
manipulating board container flex. On tall screens, dead space
goes above the opponent bar — everything else stays packed at
the bottom within thumb reach.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

The justify-content:flex-end approach left dead space at top.
Instead: keep flex:1 on board container (fills screen), use
align-items:flex-end so the canvas sits at the bottom of its
container. Emote button stays at fixed position off the board.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Portrait mobile games should have everything within thumb reach at the
bottom. Removed flex:1 stretching and added justify-content:flex-end
so the board, bars, and controls all stack from the bottom up.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Board content now aligns to bottom (thumb zone) instead of center.
Emote button repositioned to fixed bottom-right, off the chess squares.
Control buttons enlarged to 48px+ with safe-area padding.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Login: show brand logo via assetImg() instead of plain text, larger register link
- Bot select: 44px back button, difficulty color bars, fallback initials when portrait fails
- Chess board: raise max-width 400→500px, reduce padding — fills more screen
- Chess controls: min-height 44px, better contrast (#e2e8f0), larger border-radius
- Ludo board: raise cap 360→420px to fill available space
- Ludo exit button: 44px circular touch target instead of rectangular
- Tab bar items: min 44px touch targets with centered content
- HUD bell button: 36→44px
- Game menu: staggered entrance animation on buttons/chips
- Fix 9px font in ludo panels → 10px minimum
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Ludo multiplayer:
- Sync state to server on EVERY turn change (including no-valid-moves pass)
- Use turn_count to detect stale vs fresh server state (prevents re-processing)
- Non-host players poll at 1.5s and receive dice rolls + board state
- Bot turns run only on host, results synced to server for other players
- Fix double-encoding of game_state/positions in API
- Play notification sound when turn returns to player

Chess multiplayer:
- Detect move type (check/capture/castle) from FEN diff on received moves
- Show check highlight (red king square) for opponent's checking moves
- Play correct SFX (check/capture/castle) instead of generic 'move'
- Show last-move highlight squares for received moves
- Skip polling during recovery to prevent SFX burst on reconnect
- Track captured pieces from opponent's moves
- Sync move list from server history
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Three critical multiplayer sync issues fixed:

1. Resign now notifies server (action:'resign') BEFORE ending locally.
   Opponent's polling detects status:'completed' + result and shows win.

2. Reconnect recovery completely rewritten:
   - Determines player color from match data (white_player_id vs userId)
   - Flips board correctly for black
   - Sets lastKnownMoveCount from server to prevent duplicate move processing
   - Detects if game already ended while disconnected (opponent resigned)
   - Restores canSelect with correct color check

3. sendLiveMove now includes clock times (white_time_remaining_ms,
   black_time_remaining_ms) so opponent sees accurate clocks.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>