Prepare for 0.7.1

[ewowi]

Summary by CodeRabbit

• Documentation

  • Major Getting Started/Installer overhaul: reorganized installer flow, updated board names, firmware filenames, links and images; legacy installation page removed.

• New Features

  • Driver UI exposes computed channels/universes and pacing controls; layouts renamed to "Single Row" / "Single Column"; Dig2Go renamed and detailed; page-visibility reporting added; Idle Watchdog guidance with workaround added.

• Bug Fixes

  • Improved client visibility tracking, reduced CPU contention via cooperative yielding, and refined watchdog/timing behavior.

• Chores

  • Task core affinities adjusted for uni/multi-core builds; global yielding utilities added.

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