After #714 the 2.5D overlay scene still carried what decides nothing:
- src/iso-overlays.ts: IsoOverlayPlacement loses tether and grounding (always
invisible) and raisedScene (always equal to visualScene); IsoOverlayOwner
loses area; IsoOverlayPlacementInput loses hovered, focused, selected and
filtersSupported, which the resolver ignored. IsoWallSilhouette and
tetherGeometry go with them.
- src/iso-scene-render.ts: the structural scene no longer projects wall
silhouettes (isoWallSilhouettesOf and IsoSceneCacheEntry.wallSilhouettes)
that served only as a cache key. The placement and render-scene caches are
keyed by the wall geometry the scene is drawn with (IsoOverlaySceneInput.
structure = scene.geometry): the structural LRU hands out the same object
across zoom, stage resize and HA state, and a new one after any wall, room
or opening edit. The resolveCollisions flag and its fit/live cache slots
are gone: since #713 both held equal placements, and 2.5D renders only in
View, where the fit probe and the live frame ask with the same devices, so
they now read one snapshot.
- src/houseplan-card.ts: the fit call passes no flag; the overlay scene gets
structural.geometry. data-hp-iso-nudged stays the constant "false" read by
the golden requireOneRise preflight, the live-touch smoke and the benchmark.
Tests: iso-overlays pins the placement fields; iso-scene-render builds the
structure with buildIsoWallGeometry, the #714 zoom/resize and #711 state tests
stay, fit and live are asserted to share one snapshot, and two #724 AC2 tests
run the production path (createIsoStructuralSource -> resolveIsoScene ->
buildIsoOverlayRenderScene): a thicker wall with the same room rebuilds the
scene (red with a key without walls, e.g. keyed by the room rows), and a room
edit that moves the owner gives the new owner (red with a constant key). The
silhouette-construction test goes with the construction.
Mutants: #473 W2 (iso-placement-cache-survives-silhouette-change, id kept for
history) now keys the placement cache by a constant instead of input.structure
and its guard also runs the #724 AC2 tests; W6 patches the new structure line;
the W5 description no longer speaks of a nudge. The isometric-contract regex
checks the new key instead of the silhouette construction. docs/ISOMETRIC.md
names the key.
Live 2.5D output is unchanged: the 21 isometric golden scenes pass on the
accepted baselines.
Issue: #724
User-Visible: no
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018qZfe7YS4rqEMKoVeS3GKd
