`brand.logo` and `brand.hero` have ridden in `BrandDto` since M1 and neither
has ever been drawn — the app spells the instance out in text everywhere the
website shows a mark. Phase 4 renders them on the three surfaces §5.6 names:
the logo above the name in the drawer header, the logo in place of the
uppercased title in the top bar, and the hero as a band above Home's title
block.
Nothing new is fetched. `LocalAssetResolver` already turns a site-relative
`/uploads/…` path into an absolute URL and Coil is already a dependency, so
this phase is entirely presentation.
The rule that governs the file is §5.6's: an empty slot renders nothing — not
a placeholder, not a reserved gap. Every size modifier hangs off the image
itself, so when the image is not composed neither is its padding, and a caller
that wants space below a hero passes `Modifier.padding` instead of a sibling
`Spacer`. A failed load is an empty slot: no broken-image icon, no retry.
The top bar is the one place where "empty" is not "nothing". The logo replaces
the title there, so a 404 would strand the app in an unnamed shell until the
next resume refresh; it falls back to the text, which is what empty already
showed. There is no fallback while the load is in flight — drawing the text
first would flash text to logo on every navigation for one frame.
The hero is a fixed 180dp band, cropped, rather than the intrinsic aspect the
app's other images draw at. The website's hero is a CSS background driven by
`hero_layout`, which the app does not port, and the website's default hero is a
square emblem — at the intrinsic aspect an uploaded square would be a ~360dp
block that pushes the status card off the first screenful. It clips to
`shapes.medium`, so it follows `--radius-card` like every other surface.
The logo carries a content description only in the top bar, where it stands
alone; beside the name in text it is decorative, the same call the website's
`alt=''` makes.
410 unit tests green (401 + 9), `lintDebug` and `assembleDebug` clean. The
drawing itself is out of reach for JVM tests — the app carries no Robolectric,
so a composable body cannot run — but the decision of *whether* to draw is
pure, and `brandAssetUrl` is pulled out so it can be pinned.
Co-Authored-By: Claude <noreply@anthropic.com>