Upgrade fails for custom firmware when brand does not match release asset filename prefix

[paulbsmith]

Problem

Firmware upgrade fails for a QuinLED Dig2Go because python-wled constructs the firmware filename using the device's reported brand.

The Dig2Go reports:

brand: QuinLED
release: Dig2Go-Audioreactive
repo: intermittech/QuinLED-Firmware

When upgrading from WLED 16.0.0 to 16.0.1, python-wled attempts to download:

QuinLED_16.0.1_Dig2Go-Audioreactive.bin

and returns:

Requested firmware file QuinLED_16.0.1_Dig2Go-Audioreactive.bin does not exist

However, the firmware asset published in the configured QuinLED repository is:

WLED_16.0.1_Dig2Go-Audioreactive.bin

I was able to manually install that firmware successfully.

Cause

The upgrade code appears to construct the filename as:

if self._device.info.release is not None:
    update_file = (
        f"{self._device.info.brand}_{version}"
        f"_{self._device.info.release}.bin{gzip}"
    )

This assumes that the device's brand is also the prefix used for firmware assets.

For the Dig2Go, however, the firmware defines:

WLED_BRAND="QuinLED"
WLED_RELEASE_NAME="Dig2Go-Audioreactive"

while the release asset is prefixed with WLED_, not QuinLED_.

Steps to reproduce

1. Use a QuinLED Dig2Go running WLED 16.0.0.
2. Check the configured QuinLED firmware repository and discover WLED 16.0.1.
3. Attempt an upgrade through python-wled (in my case through Home Assistant's WLED integration).
4. The upgrade fails because it requests QuinLED_16.0.1_Dig2Go-Audioreactive.bin.
5. WLED_16.0.1_Dig2Go-Audioreactive.bin exists in the same v16.0.1 release and installs successfully when uploaded manually.

Expected behavior

python-wled should be able to select the firmware asset corresponding to the reported release without assuming that WLED_BRAND is the filename prefix.

One possible approach would be to match against the assets in the GitHub release rather than constructing the complete filename from brand, or otherwise provide/fall back to the appropriate asset naming convention for custom firmware repositories.