## Summary
- replace mobile connecting and reconnecting banners with element-shaped
skeletons for channel lists and message timelines
- add a low-contrast two-second shimmer and same-slot reveal, with
reduced-motion support
- align top, section, loaded-row, and skeleton label columns
## Why
Connection banners shifted content and did not match the desktop loading
treatment. The skeletons preserve layout and make reconnects less
disruptive.
## Testing
- `just mobile-check`
- `just mobile-test` — 704 passed, 1 skipped
- Pixel 10 visual verification in loaded and reconnecting states
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Signed-off-by: kenny lopez <klopez4212@gmail.com>
