docs(windows): first-boot experience & branding design spec

Design for SilverMetal Windows first-boot: declarative branding build
(4 layers baked offline into the WIM, shared dual-mode module), hardened
onboarding kiosk (Shell Launcher v2 + Keyboard Filter for the one-time
sm-bootstrap session), and the Hybrid fullscreen glass-card presentation
for the Welcome app. Fills the empty Invoke-Brand stub (M4 branding).

Approved in brainstorming. Next: writing-plans.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
sysadmin
2026-06-09 13:53:58 +01:00
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# Brainstorming / design scratch (mockups, companion state) — durable specs live in docs/
.superpowers/
# Build outputs
build/output/
build/cache/