Motrix Next

## What's Changed

Motrix Next 3.9.9 brings the improvements from the 3.9.9 beta cycle to the stable channel, with Aria2 Next 2.7.5, more resilient HTTP transfers, consistent task history, smoother task cards, and more reliable desktop integration.

### 🛠 Improvements

- **HTTP transfer recovery** — Improved parallel-download concurrency recovery, redirect destination reuse, IPv4/IPv6 worker scheduling, and stalled-tail recovery while respecting connection limits and retry backoff
- **Consistent task lists** — Unified live-task and history sorting, snapshots, and sidebar counts; removed the 1,000-entry limit from active and waiting task snapshots
- **Smoother task cards** — Added filename and status transitions, refined progress and action animations, and preserved card identity and manual ordering when retrying tasks
- **Compact layout** — Stabilized progress-bar width with a fixed percentage gap and right-aligned transfer details, keeping the two-line layout and revealing truncated details through tooltips
- **Actionable diagnostics** — Added browser-launcher registration details, native OS errors, and Linux protocol-handler information to diagnostic exports

### 🐛 Bug Fixes

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