In HA hp-dialog renders ha-dialog, whose own `.body` is the scroller and
is not a flex container; `.summary-editor` (overflow:auto,
overscroll-behavior:contain, min-height:0) therefore grew to its content
and became a scroll container that never scrolls — Chromium stops wheel
and touch scroll chaining at such a child, so nothing moved (reproduced
on ha.jbstudio.pro, HA 2026.9.1, and in an isolated Playwright page).
hp-dialog gains an opt-in `flex-content` attribute forwarded as
ha-dialog's `flexcontent`, which lays the body out as a flex column: the
editor is height-bound again and scrolls itself, header and footer stay,
exactly as the native branch already did. Only the summary dialog opts in.
Smoke demo/smoke_summary_dialog_scroll.mjs stubs ha-dialog after the HA
2026.9 contract: wheel on desktop, touch swipe on a phone, dialog within
the viewport, and a witness that the stub reproduces the bug without
flexcontent. Docs screenshots: 11/11 pixel-identical (docs:accept
--identical, #512), fingerprint refreshed.
Mutants: summary-dialog-drops-flex-content, hp-dialog-ignores-flex-content.
Issue: #508
User-Visible: yes
Golden frames carried the card version text (about, version banner,
support/export previews), so every beta bump re-accepted up to 20
baselines that had not visually changed. The version now reaches the DOM
and stand requests through displayVersion() (src/card-version.ts); the
golden harness pins window.__HP_VERSION_OVERRIDE__ = '0.0.0-golden'
before the card is created. CARD_VERSION literals stay where the release
contract reads them; cache-busting and the console banner keep the literal.
Docs screenshots: `npm run docs:accept -- --identical` re-captures
locally, compares decoded RGBA pixels with the committed frames inside
Chromium (scripts/png-identical.mjs) and, only when every frame is
identical, refreshes the manifest fingerprints and captureScriptSha256;
bytes stay, any difference refuses with a per-frame count. First run on
this tree: 11/11 identical, manifest refreshed.
Mutants: version-seam-ignores-override, docs-identical-accepts-any-frame.
Issue: #512
User-Visible: no
Every card instance attached its summary-panel runtime through
import().then(), even when the chunk had loaded long ago. The first render
therefore measured a header without summary controls; the controls arrived
a beat later, the stage shrank, the deferred refit opened a `stage-resize`
continuity candidate and the first HA tick paid three extra render passes
(Full Performance: blend stateUpdate1 50 → 130 ms, overlay 217 → 809 ms;
locally 4 performUpdate per tick instead of 1).
summary-runtime-loader.ts separates the summary code from its state: the
loaded factory is cached per page, every host builds its own runtime from
it (no shared preferences, drafts, subscriptions, timers or DOM). A warm
factory yields the runtime synchronously in connectedCallback, before the
first Lit render; a cold mount still pays one lazy import, concurrent cold
mounts share the pending import, a failed import is forgotten so the next
connection retries, and a disconnect cancels the pending attachment of that
connection. SummaryRuntimeSlot owns the per-host lifecycle so the card core
stays under its line ceiling.
Witnesses: loader unit tests (distinct instances, shared pending import,
cancelled attachment, retry after failure); demo/smoke_summary_warm_attach
(warm replacement and cold-key instance on a warm page own the runtime
before the first render, header/stage stable from the first frame, no
stage-resize, one performUpdate per geometry-neutral tick, a real viewport
resize still opens stage-resize); mutant summary-runtime-attaches-after-
first-render. smoke_summary_panel waited for `_summary` as a readiness
proxy; it now waits for the server config load, which stays asynchronous.
Local paired glow benchmarks (4× CPU throttle): blend 159.7 → 49.9 ms and
overlay 326.7 → 120.4 ms at stateUpdate1 with renders 4 → 1; the isometric
load loses the three summary-owned long tasks.
Docs screenshots: all 11 frames decode pixel-identical to the committed
ones; the manifest carries only the new source fingerprint. Initial View
ceiling recentred 299 100 → 299 600 for the +299 B loader.
Issue: #506
User-Visible: yes
Fingerprint-only: the panel change does not alter any documented frame
(the docs harness already gave the panel host the viewport height), so the
committed images stay and only the source provenance moves.
Issue: #488
User-Visible: no
Accept the reproducible Linux CI capture for the issue 471 source tree. All ten documentation screenshots are byte-identical; only their source fingerprint changes.
Issue: #471
User-Visible: no
