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docs: refresh stale embed renderer descriptions after Task 1

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Final-review reviewer flagged two minor staleness items:
- embeds.md §10 ImageEmbed bullets still described the pre-Task-1
  shape (no wrapper, no aspect-ratio). Replaced with the actual
  current shape, with an explicit pointer to the Dimension
  reservation contract section that explains why the dims-null
  branch deliberately has no fallback.
- message-list.md said VideoEmbed uses "padding-bottom" without
  noting the direct-video branch uses aspectRatio. Now describes
  both branches explicitly.

No code changes; both are documentation-only touch-ups.
This commit is contained in:
Jannis Braun
2026-04-25 13:15:14 +02:00
parent 56830972f4
commit 9aa40c0304
2 changed files with 6 additions and 4 deletions
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docs/systems/message-list.md
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@@ -42,7 +42,7 @@ When dimensions are not known (probe failed, no OG tags, non-image type), the re
Renderers known to satisfy the contract today:
- `AttachmentRenderer.tsx` — reserves from `attachment.width/height`.
- `embeds/ImageEmbed.tsx` — reserves from `embed.width/height` when populated.
- `embeds/VideoEmbed.tsx` — fixed 16:9 padding-bottom for the iframe area.
- `embeds/VideoEmbed.tsx` — fixed 16:9 reservation for both branches: `aspectRatio: '16/9'` for the direct-video container, `paddingBottom: 56.25%` for the provider-iframe container.
- `embeds/RichEmbed.tsx` — explicit `height` from `getIframeHeight()`; fixed 80×80 thumbnail in collapsed state.
- `embeds/GenericEmbed.tsx` — fixed 80×80 thumbnail.