It looked for the tag written as `css` immediately followed by a
backtick. The plugin is a Rollup transform, so the module has already
been through TypeScript by the time it arrives, and the TS printer puts
a space there: `css `. The guard therefore returned null for every
stylesheet in the project, and minification never ran once — around
23 KB of explanatory comments went to every user in every release.
Matching the tag as a word with optional whitespace turns it on:
chunk, raw 1 079 508 -> 1 021 115 B (-58 393)
initial view 300 111 -> 287 284 B gzip (-12 816)
room to the budget 955 -> 13 782 B
The ceiling moves down with the fact, as the tool asks when a graph
shrinks past the band.
The risk is not the two lines; it is that 23 KB of CSS is minified for
the first time. Two witnesses cover it: a browser smoke that puts the
original and the minified text into separate stylesheets and compares
the serialised rules — 1 049 of them, identical up to the whitespace
policy the minifier declares — and a test that takes real comment text
out of src/styles and requires it to be absent from dist, so a plugin
that silently stops working cannot pass again.
Issue: #526
User-Visible: yes
The long explanation inside the css`` template cost 518 gzipped bytes in
the initial chunk: the template minifier leaves comments in this file, so
every character of them is downloaded by every user. The reasoning now
lives in docs/DEVELOPMENT.md and in the commit above; the stylesheet
keeps one line and the issue number.
Measured: 300 577 B with the long notes, 300 111 B with the short ones,
300 059 B on dev before the fix.
Issue: #524
User-Visible: no
The shadow of a device marker is sized from the marker, and the marker is
sized from the container: --device-shell-shadow is expressed in
--dev-size, which resolves to 2.5cqw. With box-shadow in the transition
list, every container-query re-evaluation — a tooltip, a scrollbar, a
rotation — produced a new computed value and restarted a 150 ms
non-composited transition on every marker at once.
The owner's Firefox profile shows what that costs: 244 box-shadow
transitions, all on span.device-shell-frame, all oncompositor:false, in
bursts of exactly 61 (the markers on screen), four bursts in two
seconds. During them the tab presented 103 frames in 11 seconds — 9.4
per second, CONTENT_FRAME_TIME median 149 ms and up to 320 — while the
refresh driver waited for paint 381 times. Our JavaScript in the worst
three seconds: 16 ms. Chromium starts the same transitions (measured:
one pixel of container width starts two per marker in both engines) and
merely pays less for them, which is why this hid there.
The shadow itself is unchanged; it simply applies at once. The core
keeps the same treatment, so the selection and focus rings appear
without a fade — an instant ring is ordinary feedback, a faded one costs
a full-frame repaint per marker. Hover still animates border-color.
Issue: #524
User-Visible: yes
Lit reuses list nodes by position. The opening list and the device markers had
no keys, so on a space switch the leaf that held a slot kept its DOM node and
only changed values — and `.op-leaf` (transform) and `.op-arc`
(stroke-dashoffset) carry a 0.6 s transition, so the browser animated a door
that never moved: the new floor's leaf drove in from the previous floor's
opening angle. Measured on two spaces with a door in the same place and
opposite contact states: the node is reused, transform goes
`rotate(-90deg) → rotate(0deg)`, dash offset `0 → 125.66`, both transitions
`running`. The marker shell adds two more with its `box-shadow`.
Both lists are now rendered through `repeat(…, (item) => item.id, …)`, the
same lesson `glow-scene.ts` already learned for the Glow spots. The trap is
written where it starts — above the two transitions in `plan.styles.ts` —
because that is the file someone edits when adding the next animated property.
`houseplan-card.ts` is at its line ceiling, and the note would have cost the
budget a dozen lines for nothing: the swap itself is line-for-line.
The witness walks the shadow tree per element. `document.getAnimations()` is
empty here EVEN ON THE BROKEN CODE — the card lives in a shadow root and the
document-level call does not reach into it, and the issue proposed exactly
that call. The smoke also builds its own fixture: the demo home has no
openings at all, so two doors in two spaces are prepared in the smoke, and it
asserts the other half of the contract as well — a real contact change inside
one space still animates the leaf.
On `origin/dev` the smoke fails on five facts, naming the offenders:
`op-arc:stroke-dashoffset`, `op-leaf:transform`, `device-shell-frame:box-shadow`
twice. Mutants `openings-rendered-without-keys` and
`device-markers-rendered-without-keys` put each `map` back.
Perf, 7 samples against `19e421b3`: spaceSwitchMs 524.8 (limit 769.35, base
512.9), switchCycleMs 1293.9 (1696.28, 1256.5), firstStableRenderMs 2533.8
(3000, 2529.2), modelReadyMs 732.7 (944.97, 726.9), longTask.maxSingleMs 663
(910, 660) — `benchmark:compare` green in full.
The initial View graph grows 241 B gzip: `repeat` enters it for the first
time. The #438 ceiling is recentred 300 400 → 300 700 with the usual dated
note; measured 300 059 B keeps 641 B above and 1 359 B below the band. The
301 066 B budget is untouched, but only 366 B now separate the ceiling from
it — the #367 headroom debt has stopped being theoretical.
Issue: #525
User-Visible: yes
Code review r1 was right that AC5's evidence was empty: the smoke never
forced a settled render during a gesture, so the settled copy of
`.hp-editor-only-layer` was empty at every point it looked, and
`groups() === 1` held whether the copy was hidden or not.
Measuring the case the reviewer named turned up more than a weak assertion.
Ownership of the layer alternates on its own — every settled render ends in
`updated()` → `_commitLiveEditor()`, which empties the live root — so a
settled render mid-gesture takes the guides back and draws them itself, from
the same live `_alignPoint`. That much needs no suppression. But the copy it
leaves behind stays in the settled scene, and the NEXT live paint adds a
second one: measured two `.alignline` on one alignment, the settled one a
grid step behind the marker. So the suppression stays, and now it stays with
a witness.
The smoke counts what is visible, not what is in the DOM: the hidden copy is
still a node, and counting nodes is how this check could have looked green
while showing the user two lines. Its device scenario now drives the whole
handover — force an unrelated settled render mid-drag (`_hdrH`, the same
header-height observer that masked the defect in the S2 measurements), assert
the render actually happened, that the layer went back to the settled scene
with the live point on it, and that one real move later the live painter owns
it again — exactly one visible guide at every step.
Mutant `live-editor-keeps-the-settled-guides-visible` puts the suppression
back under the plan branch, as it was before this issue, and the smoke goes
red on `nextMoveTakesTheLayerBack`.
Issue: #521
User-Visible: no
#451 moved every editor gesture onto the live painter, and the guides stayed
behind in the settled scene. While a gesture runs, the settled scene is not
re-rendered at all, so the guides did not follow the marker in the device
editor, the shape in the backdrop editor, or the cursor while a contour is
drawn in the plan editor. Measured with real pointer events on the demo stand
against `origin/dev`, after waiting for the editor chrome to settle: three
gestures, each exactly on another object's axis, 0 settled render cycles,
`.alignline` 0 and no `.alignguides` group in all three.
The report called it two breaks. It is one — the layer — plus one thing that
would have broken the repair: `_alignPoint` read `_pos`, which during a live
gesture answers from the snapshot of the last settled render. Over one drag:
live 254.17 → 220.83 while `_pos` stayed at 254.17, eight grid steps behind,
so a restored layer would have drawn the guide at the marker's old place.
The live template now paints the guides in all three modes (the device editor
had no template at all — `paintDevice` only moves the marker element), and
`_alignPoint` takes the live position. The settled copy of
`.hp-editor-only-layer` is made transparent for the duration of any editor
gesture, not only in plan mode: two guides, one of them stale, is what the
user would otherwise see when an unrelated settled render lands mid-gesture.
`_renderAlignGuides` on the card becomes soft — a gesture that starts while
the editor runtime is still loading must cost nothing, and an exception inside
a `requestAnimationFrame` paint would take the whole gesture with it.
The witness is rewritten around the defect that hid this for two stable
releases: the old smoke assigned `_deviceDrag`/`_decorDraft` wholesale, and an
assignment with `oldValue == null` does not route to the live path — it
verified a state a real gesture never reaches. Every scenario now drives real
`PointerEvent`s, waits for silence first (the `_hdrH` settling window right
after entering a mode hands out settled frames that make even the broken code
draw a guide), and asserts zero settled cycles during the movements plus
exactly one `.alignguides` group. #400's exclusion is checked without touching
the drag state: the dragged marker must simply be absent from the candidates.
On `origin/dev` the smoke fails on nine of its facts; a witness that stays
green before the fix was the actual bug here.
Mutants: `live-editor-devices-drops-align-guides`,
`live-editor-decor-drops-align-guides`, `live-editor-plan-drops-align-guides`,
`align-point-reads-frozen-snapshot` — one per AC, all guarded by the smoke.
`test/smoke-harness-contract.test.mjs` pins that the smoke cannot go back to
fabricating gesture state.
Issue: #521
User-Visible: yes
The r1 diagnosis was wrong, and the measurement in the code review proved
it: removing the two declarations from `static properties` left the cold
start at 19 update cycles, 4 model builds and 4 config epochs, exactly the
numbers of the bug. Lit's forced first-update change does mark `_serverCfg`
changed, but at that moment the body and `_cfgEpochPreservedConfig` are both
null, `preserveGeometry` is true and the epoch does not move. The comment
above `static properties` now says that; the declaration still stays out,
because two owners of one reactivity is what #500 removed.
The real cause is the `await`. Before #500 everything from
`_adoptStructuralResponses` to the end of the load ran in one task: the
adopted bodies, `_adoptInitialSpace`, the viewport restore, `_loadOk`, and
the device seeding — whose `_syncNewDevices`/`_seedHiddenDevices` write the
config back — all landed in a single Lit update. #500 made the adoption an
async sequence, so the caller resumes one microtask later, after Lit has
already painted the adopted config; the seeding writes then arrive as a
second config epoch, a second model build and a second paint of a 60-room
house.
`GatedAdoptionInput` gains `afterAdopt`, the mirror of `beforeAdopt`: it
runs synchronously at the end of the sequence, before the promise resolves.
`_loadFromServer` moves the viewport restore, `_loadOk` and the device
rebuild into it — `_syncNewDevices` refuses to write before `_loadOk`, so
the order inside the hook matters — and the load tail now rebuilds devices
only when nothing was adopted. `_reloadConfigOnly` takes the same route.
Measured with the project's own runner, 7 samples per profile, base
`a44fbd37` against this tree (Chromium 152, sandbox):
interaction modelReadyMs 761.3 ≤ 950.56 (base 731.2)
firstStableRenderMs 2567.2 ≤ 3000 (base 2542.7)
longTask.maxSingleMs 690 ≤ 921 · cache.entries.cleanFloor 100
isometric modelReadyMs 1252.9 ≤ 1499.76 (base 1249.8)
firstStableRenderMs 1378 ≤ 1610.16 (base 1341.8)
Boot diagnostics on both trees: 18 update cycles, 3 model builds, 3 config
epochs, with the same epoch trace — the candidate is no longer
distinguishable from the base.
Witnesses. `config-adoption.test.mjs` queues a microtask at the start of
the adoption and pins that `afterAdopt` runs before it — the probe fails the
moment the hook crosses an await; `config-adoption-ownership.test.mjs` pins
the wiring in the card and the hook's place in the sequence. Mutants
`adoption-tail-defers-caller-hook` (defers the hook by one microtask) and
`authoritative-load-seeds-devices-after-the-await` (drops the rebuild from
the hook) redden them.
The initial View graph grows 40 B gzip, so the #438 ceiling is recentred
300 300 → 300 400 with the usual dated note; measured 299 812 B keeps 588 B
above and 1 412 B below the band. The overall 301 066 B budget and the #367
headroom debt are untouched.
Issue: #520
User-Visible: no
#500 gave `_serverCfg` and `_layout` prototype accessors but left them in
`static properties`. Lit marks such a property `wrapped` and, on the FIRST
update, force-writes it into `changedProperties` with an `undefined` old
value even though nobody assigned anything (`reactive-element.js:249-252`
and `:880-886`). `willUpdate` reads that as a config replacement, raises
`_cfgEpoch`, the memoized model key changes, and a 60-room house builds and
paints its model a second time: measured 19 update cycles, 4 builds and 4
epochs against 18 / 3 / 3 before #500, worth ~550 ms of `modelReadyMs` and
the same on `firstStableRenderMs` (3355 against a 3000 ceiling).
The declaration goes; the bodies stay reactive through the owner —
`_adoption` → `onBodyReplaced` → `requestUpdate(field, previous)` — which
needs no declaration: `getPropertyOptions` falls back to the default and
`changed.has('_serverCfg')` works as before. `noAccessor: true` would not
help, `wrapped` is set before that flag is read. The trap is written above
`static properties`, where someone would put the declaration back.
`cache.entries.cleanFloor` returns to 100 in both interaction budgets: the
120 entries were the extra epoch re-keying the per-room cache, not a
property of the design — the reasoning in 914e8402 was wrong.
Witness: test/config-adoption-ownership.test.mjs pins that neither body is
declared; the mutant `adoption-bodies-declared-reactive` puts the
declaration back and reddens it.
The boot diagnostics of the previous three commits touch four private
members, so they are declared in the performance contract: `_buildModel` and
`_cfgEpoch` outright (both exist in every supported comparison base), and the
adoption entry point as a current/legacy pair — #500 turned the private
`_adoptStructuralResponses` into the public `_adoptAuthoritative`, and an
undeclared rename would have the counter report zero adoptions instead of
failing.
The same commits carried a `node_modules` symlink: `.gitignore` had the
pattern with a trailing slash, which does not cover a symbolic link, and
`git add -A` in a sandbox worktree committed it. The link is removed and the
pattern loses the slash; a mutant run on this branch failed with `EEXIST` on
it.
Issue: #520
User-Visible: no
Version fields and the generated bundles move to 1.74.0-beta.1 and open the
line after the stable v1.73.0. The changelog entries of #509 and #508 leave
Unreleased for the beta.1 section; release notes and STATUS describe them and
name the internal work of this beta. No product change beyond what is already
reviewed and merged.
Issue: #509
Issue: #508
User-Visible: no
Release: v1.74.0-beta.1
`space/delete` (both runtimes), Optimize Undo and Import apply now treat
`asset-wait` like every reload path: nothing was adopted, so no toast, no
space switch, no history/undo reset — the dialog is released and the
scheduled reload owns the rest. Unit and smoke cover the refused branch for
all four paths; the spec's reactivity risk row states the real mechanism.
Issue: #500
User-Visible: no
`willUpdate` keys the geometry epoch and render-lifecycle invalidation on
`changed.has('_serverCfg')`. Before #500 every body replacement went through
Lit's accessor and produced that event; the owner wrote its field directly
and the epoch stopped moving on adoption, staging and rollback — the safe
Resize smoke then measured against a stale model (Validate on c360bcc9).
`MutableConfigAdoption` now reports each replaced reference through
`onBodyReplaced`, which the card wires to `requestUpdate(field, previous)`;
echoes and identity-only changes stay silent, exactly as an unchanged
reference never fired the accessor.
Issue: #500
User-Visible: no
`test/config-adoption-ownership.test.mjs` pins identity writes to the owner
and ratchets body staging (AC1/AC2). `demo/smoke_post_write_adoption.mjs`
drives space/delete (both runtimes), Optimize Undo and Import apply with a
concurrent backdrop change between the write and the re-read (AC4). Smokes
that seed revisions from outside the card keep working through the
`seedIdentity` harness seam behind the card's delegate setters. The initial
View ceiling is re-centred with the measured fact; ARCHITECTURE.md gets the
boundary paragraph.
Issue: #500
User-Visible: no
`src/config-adoption.ts` owns config/layout with revision and fingerprint;
the host keeps `_serverCfg`/`_cfgRev`/`_layout`/`_layoutRev` as delegates.
All seven authoritative adoptions go through `adoptAuthoritativeGated`
(backdrop readiness → continuity → adopt → profile tail); the post-write
paths (space/delete ×2, optimize_undo, import/apply) gain the gate and take
revisions from the re-read bodies. `rollbackOptimistic` moves to the owner;
plan-optimize, space copy and the vacuum writers stop assigning identity.
Issue: #500
User-Visible: no
Moving the aggregate out of render fixed the first frame, but the work
itself was still one uninterrupted ~1.5 s task on the large-house
fixture — the interface stayed frozen, just a moment later, which is the
same symptom the issue reports. cleanFloorAreaSteps yields after every
room; the runtime advances it with an 8 ms budget per frame and
reschedules until it finishes, so no slice outlives a frame and the
skeletons stay until the number is ready.
The smoke now watches longtask entries for the whole show, not only the
first frame: a single long task while the values are computed fails it.
Issue: #509
User-Visible: no
Two halves of the same first paint. The panel showed «Source unavailable»
in every row until the lazy metrics chunk arrived, because value() could
not tell "not loaded yet" from "source is dead"; and metrics() ran inside
render, walking the HA registry and unioning the clean floor of every
space synchronously — 11 s on the large-house fixture.
- totalCleanFloorAreaM2 computes the space's masonry and junction
topology once per SPACE and hands them to innerContourForRoom, which
otherwise unions the whole space again for every room: 11 045 → 1 488 ms
on that fixture, same 306.3 m². The card has always done this through
its own _innerContour cache; the panel now does the same.
- Aggregates leave the render path: the first frame paints skeletons and
the work starts right after the frame is shown (timeout → rAF →
timeout, never requestIdleCallback, which under load would leave the
skeleton up for seconds). Stale memo keeps the previous number on
screen instead of flashing back to a skeleton.
- valueState() separates pending from unavailable; a pending row keeps
the same plate, grid and height and carries a pulsing rectangle the
height of the line, replaced by the value with a short fade. Reduced
motion keeps the rectangle and drops the pulse.
- Panel enter/exit animation (#505, 190 ms) is now actually visible —
the main thread is free — and the smoke witnesses it.
Mutants: summary-first-paint-shows-unavailable, summary-metrics-block-first-frame,
summary-area-recomputes-walls-per-room, summary-stale-metric-falls-back-to-skeleton.
Issue: #509
User-Visible: yes
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
Promote the nine published v1.73.0 betas without new product behaviour:
stable version fields, synchronized generated bundles, the aggregated
bilingual release notes from v1.72.0 and status metadata only. beta.9
carried the startup-regression fix (#506) that Full Performance caught on
the first promotion attempt; the stable body keeps it out as an in-line
regression per the #328 curation rules.
Issue: #506
User-Visible: no
Release: v1.73.0
Version fields and generated bundles move to 1.73.0-beta.9; the #506
changelog entry leaves Unreleased for the beta.9 section; release notes and
STATUS describe the startup-regression fix that unblocks the stable
promotion. No product change beyond #506, already reviewed and merged.
Issue: #506
User-Visible: no
Release: v1.73.0-beta.9
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
Promote the eight published v1.73.0 betas without new product behavior. Synchronize version fields and generated bundles; aggregate public release notes from v1.72.0. Main-only workflow mirrors were merged with an identical beta.8 product tree.
Issue: #505
User-Visible: no
Release: v1.73.0
Move the explanatory comment to TypeScript without changing styles; preserve the existing bundle-budget noise margin. Include independently accepted #498 in the release status.
Issue: #505
Issue: #498
User-Visible: no
Restore the shared footer minimum exposed by the #505 Linux screenshot gate; the focused browser assertion fails before the restoration and passes after it.
Issue: #505
Issue: #495
User-Visible: yes
Windows portability (the three red tests on the owner's machine at green CI):
- scripts/spawn-portable.mjs: isMainModule via pathToFileURL (the
`file://${argv[1]}` form gives file:///C:/C:/... and the CLI stays silent);
portableCommand — a shell only for npm/npx/.cmd, node and git run directly
(spawn via shell dropped the quotes of `node -e "…"`). Applied to
classify-changes, mutation-gate-report, review-doc-guard, check-inputs,
merge-candidate, gate-small, rebase-on-dev.
- the rebase-on-dev test pins core.autocrlf=false / core.eol=lf through
GIT_CONFIG_* for its temp repository instead of touching the user's git
config; test/windows-portability.test.mjs forbids both anti-patterns.
Pins: scripts/toolchain-pins.mjs reads Node/Python from validate.yml, the HA
stack from tests_backend/requirements.txt, Playwright/Chromium from the
lockfile — no second dictionary; `npm run toolchain:check` compares the
machine; .nvmrc/.python-version are derived and tested equal;
scripts/wsl-setup.sh provisions WSL/Linux with those pins.
scripts/task-packet.mjs: one derived view of an issue (status, rights, owner
decisions, branch vs dev, Validate on the tip, previous verdict with recorded
tree, AC → evidence, unwitnessed). scripts/wait-verdict.mjs: polls labels,
pipeline comments and optionally Validate, prints only on state change, exit
0/3/4, writes nothing.
gate:small --smokes: after build the browser phase runs bundle-sync and then
the directly matched and registered smokes, two at a time; broad matches stay
with the reviewer. package.json changed, so the bundle is rebuilt here.
Issue: #496
User-Visible: no
HA assigns panel/hass/narrow/route before the top-level-await entry has
defined the element, so the values landed as own properties that shadowed
the accessors and the card never received hass. And <ha-panel-custom> has
no height, so the percentage host height collapsed the stage to 0 px.
Adopt pre-upgrade properties through the accessors and size the panel from
the viewport minus HA's safe-area padding. The smoke now reproduces HA's
real mount order and container; two mutants guard both contracts. The
bundle is rebuilt from these sources.
Issue: #488
User-Visible: yes
Codex