## Motivation
When a model has multiple quantization variants (e.g., 4-bit, 8-bit),
expanding the group shows each variant's quantization and size — but
there's no way to see which specific nodes have each variant downloaded.
The top-level model group has an (i) info button, but the individual
variant rows don't. This makes it hard to tell which nodes have which
quantization.
## Changes
- Added an (i) info button to each expanded variant row in
`ModelPickerGroup.svelte`
- When clicked, opens the existing info modal scoped to that single
variant (showing its quantization, size, and which nodes have it
downloaded)
- Changed the variant row element from `<button>` to `<div
role="button">` to allow nesting the info `<button>` (matching the
pattern used by the top-level model row)
## Why It Works
Reuses the existing `onShowInfo` callback and info modal by constructing
a synthetic single-variant `ModelGroup` from the clicked variant. No
changes needed to `ModelPickerModal.svelte` — the info modal already
handles single-variant groups correctly.
## Test Plan
### Manual Testing
<!-- Hardware: MacBook Pro -->
- Open dashboard, open model picker
- Expand a model with multiple variants — each variant row now has an
(i) icon
- Click a variant's (i) — the info modal shows that single variant's
quantization/size and which nodes have it downloaded
### Automated Testing
- Dashboard builds successfully with `npm run build`
- `nix fmt` passes
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Alex Cheema
dc89ba662a
