Golden WSL2 image v16

Golden WSL2 image v16 — clean first-load editor.

Builds on v15's lean base (no C/C++ toolchain) and adds a clean default layout: the editor opens to an empty workbench — no Explorer sidebar, no bottom panel, no open tabs, no welcome page (just the 48px activity-bar rail as the entry point).

How: adom/hd-windows-bootstrap@0.2.2 seeds workbench.html to collapse the primary sidebar once per workspace (won't fight the user if they later open it) on top of the existing activity-bar/trusted-domains seed. workbench.startupEditor:none keeps the welcome page off. A build-time litmus in the bake's smoke test now fails the build if startupEditor:none or either seed marker is missing.

Validated live on fresh code-server profiles at both /home/adom and /home/adom/project — both open clean.

Size: 402.6 MB compressed (422,122,434 bytes), ~1.4 GB extracted.
sha256: aca1481cebb3365009e260a12066691dca0769df428dc62edc3eddf39b93e445

Built from wiki.adom.inc bootstraps (no gallia): adom/hd-windows-bootstrap@0.2.2 → adom/hd-bootstrap@0.2.2 → adom/core@4.9.4, plus adom/adom-workspace-updater@0.1.11 and adom/adom-desktop@1.8.160.

Note on opened folder: which folder code-server opens is an HD launch-time arg, not baked in. Bare code-server defaults to /home/adom.