- Split discovered streams into Recommended (FFMPEG, ONVIF) and Alternative groups
- Add Main/Sub/Other classification within Recommended based on resolution:
- Main: streams with width >= 720px (after clustering analysis)
- Sub: streams with width < 720px or lower cluster
- Other: streams without resolution info
- Implement smart auto-collapse based on selection mode:
- Main selection: shows Recommended/Main, collapses rest
- Sub selection: shows Recommended/Sub, collapses rest
- Falls back to showing all if target category is empty
- Add collapsible groups/subgroups with chevron toggles
- User manual expand/collapse preserved until mode change
- Add stream count badges to all group headers
eduard256
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