Unskips the 8 RED FTs from the prior commit (test_game_room_views.py) and lands the feature beneath them — the room's 2nd vertical snap pane becomes a horizontal scroll-snap carousel of five views, landing on SCROLL (2nd).
Carousel core: _room_views.html (5 .room-view panes) + _room_views_strip.html (root-level icon strip, outside the aperture so it clears the scroll card's fade mask + scroll clip); room-views.js owns the horizontal axis — goToView (authoritative active-state) + an IntersectionObserver backing native swipe; horizontal wheel (deltaX / shift+wheel) advances a view while vertical wheel stays for feed scroll; icon-click snaps; the strip shows only while the views pane is on screen (vertical IO mirrors room-scroll.js). SCROLL still wraps _room_scroll.html, so the existing binary y-snap + provenance feed + GAME ROOM ⇄ GAME SCROLL title reel behave unchanged.
Title reel: the .gr-swap reel gains the four extra view words; the active word is driven by data-active-view on the h2 (set by room-views.js), gated by .is-scroll (room-scroll.js) so ROOM shows at the hex.
POST view: a room-scoped game-table thread. New Post.room FK + KIND_ROOM_THREAD (mirrors Brief.room) + Room.get_thread_post(); epic:room_post AJAX endpoint appends a Line (seated-gamer-gated, dup-rejected) and returns the rendered line partial. _post_line.html extracted from post.html and shared by both surfaces + the endpoint. The composer appends OPTIMISTICALLY (synchronous line so the POST + ATLAS views reflect it the instant OK is clicked, no dependence on the round-trip), then reconciles with the server's authoritative @handle/timestamp render; a rejection rolls the optimistic line back.
ATLAS view: a live client-side merge of the SCROLL provenance rows + the POST thread rows, time-ordered, each row tagged data-source=provenance|post for end-of-sprint per-type styling. Rebuilds from the live DOM on activation + on every composer append. CHAT/PULSE are .room-view-stub placeholders (no backing model yet).
Burger Text sub-btn lights .active on the table (text_btn_active from epic.room_view, unset on every other _burger.html surface) → room-views.js binds its active click to the swipe machine: DOWN to the views pane, RIGHT to Post.
Coverage: 8 carousel FTs green; Jasmine RoomViewsSpec (atlas merge order/stability + row data-source); epic ITs (Room.get_thread_post, carousel markup, room_post endpoint 200/403/400/GET); 1636 ITs/UTs + the existing scroll FT green (no regression).
Gotcha logged: build FormData(form) BEFORE clearing the input on optimistic submit — clearing first captures an empty text field → 400 → the line silently rolls back.
[[project-room-game-views-carousel]] [[project-room-scroll-of-events]] [[project-room-title-scroll-reel-jun02]] [[feedback-jsonfield-exclude-sqlite-null]]
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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