u64deck v1.8.0 — Public Beta 10.4

Public Beta 10.4 improves SID Jukebox queue information and makes Stop respond without waiting behind ordinary device-status traffic.

Queue lengths

Renamed the Play Queue column from Len to Length.
Queue durations are populated as soon as tunes are added, before lazy SID files are fetched from the Ultimate.
u64deck uses the canonical HVSC path/subsong catalogue already present in Songlengths.md5, then continues to use the SID digest when available.
Multi-subtune entries display the duration for the selected subtune.
Tunes without a matching Songlengths entry display an em dash rather than an invented duration.
The existing compact .ssl attachment remains unchanged, so the Ultimate's native SID player continues to show the documented length too.

The Stop control updates the browser state immediately and pauses periodic Jukebox refreshes while the stop request is pending.
u64deck now sends the low-latency TCP command-socket reset packet first.
REST /v1/machine:reset remains the compatibility fallback when the command socket is unavailable.
Stop retains the existing Ultimate behaviour: SID playback ends by resetting to the C64 command line because the firmware does not expose a separate native SID-player stop operation.
Matrix-input cleanup remains in place so remotely held keys are released safely.

Updated built-in Help to explain immediate Length population and Stop/reset behaviour.
Corrected remaining README wording for Search and Random Dive so it matches the one-tune queue model introduced in Public Beta 10.3.
Retained the canonical screenshot gallery, standalone-executable Quick start and SIDFlow/Chris Gleissner attribution.

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No configuration, SQLite databases, SIDFlow artefacts, caches, playlists, favourites or personal data are included.