Rayburst

> [!CAUTION]
> Resuming a partial download now requires its original task and recovery data. Re-adding the same URL creates a new task instead of adopting an existing file by name or size.

## What's Changed

Rayburst 4.0.1 adds filename controls and an Extensions panel, improves download recovery and desktop integration, and bundles Aria2 Next 2.8.6.

### ✨ New Features

- Preview and edit filenames before downloading, with optional remote filename lookup.
- Rename completed single-file downloads from task details, with collision protection and recoverable history updates.
- Install Rayburst Connect for Chrome, Edge or Firefox from the new **Extensions** sidebar panel.

### 🛠 Improvements

- Choose whether browser downloads ask for confirmation, start in the background or show Rayburst. Confirmation is the default.
- Simplify update channels to **Stable** and **Beta**. Beta selects the newest version across both channels; neither channel offers downgrades.
- Bundle [Aria2 Next 2.8.6](https://github.com/AnInsomniacy/aria2-next/releases/tag/v2.8.6), with background disk I/O, transactional recovery checkpoints and improved handling of interrupted or compressed HTTP responses.
- Suppo