u64deck v1.8.0 — Public Beta 6

Public Beta 6 completes the Assembly64 workspace improvements introduced in Beta 5.

Assembly64 fixes

Added a genuine Mount & Run action for D64, D71, D81 and G64 disk images.
The image is mounted in drive A using the selected safety mode, the C64 is reset,
and u64deck enters LOAD"*",8,1 followed by RUN after the configured boot delay.
Numeric Assembly64 category identifiers are now displayed using readable labels,
including Demos instead of 1. A built-in canonical map is used as a fallback
when the service's preset metadata does not include numeric identifiers.
Added the Assembly64 Rating column to search results.
Replaced raw microsecond-precision timestamps with concise values such as
21 Jul 2026, 12:59. The original service value remains available as a tooltip.
Retained the full-height responsive two-pane workspace, selected-release state,
sticky headings, polished empty/error states and safe filename handling from Beta 5.

Moved the source launch instructions to a prominent Quick start section directly
after the README introduction, so the normal unzip → start.bat → browser →
Select Ultimate… path is visible before contributor build and release material.
Kept the cross-platform Python launch commands and the persistent config.json
upgrade note together in Quick start.

Stable SQLite index migration with validation, backup and Windows file-lock handling.
Correct Image Parse Details notifications.
Release-neutral built-in Help and hardened GitHub Actions packaging workflow.
SID metadata indexing, chip/format filters and player favourites.

95 tests passed.
README body text was verified unchanged apart from the renamed and relocated heading.
Help-content and README consistency regression tests passed.
Python and JavaScript syntax checks passed.
GitHub Actions workflow and example configuration parsed successfully.
Live source smoke test returned v1.8.0 · Public Beta 6 with build 7420354.
Public archive hygiene checks passed; no database, configuration, favourites,
cache, backup or compiled Python artefacts are included.