## Summary
- Keep selected sidebar rows regular by default; manually unread rows
become bold immediately.
- Apply a clearer dark-mode hierarchy: standard inactive rows at 75%,
muted rows at 45%, and unread rows at full emphasis.
- Keep hover text color stable while retaining the selected-row and
unread cues.
## Validation
- `pnpm typecheck`
- `pnpm build:e2e`
- Playwright: sidebar badge and channel-mute coverage
## Screenshots
Posted in the PR comments.
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Signed-off-by: kenny lopez <klopez4212@gmail.com>
## Summary
- show relevant unread threads and active agents when hovering a channel
- keep channel-level unread emphasis separate from thread activity dots
- make activity rows navigate to the thread and remove demo-only data
## Test plan
- `just ci` (all stages passed except the final duplicate native check,
which ran out of disk after its earlier clippy pass)
- `cd desktop && pnpm exec playwright test
tests/e2e/channel-activity-popover.spec.ts --project=smoke`
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Signed-off-by: kenny lopez <klopez4212@gmail.com>
