docs(wiki): add labeled clarifier images to Architecture, Hand-Tracking, Audio
- Architecture: labeled "cast of characters" overview at the top of the section;
moved the cash-out action shot down to the scoring section
- Hand-Tracking: pinch close-up (grab-by-point) + a mesh-vs-real Persona arms comparison
- Procedural-Audio: a spectrogram showing the 1-beat/s clock + pitch-snapped note bands
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
docs(wiki): add ELI5 developer guide for Godot-on-Vision-Pro newcomers
Expand the wiki from a single Home stub into a 6-page beginner-friendly walkthrough
of how Cascade Countdown was built:
- Getting Started — what Godot is, why visionOS needs a forked engine build,
the render-only vs hand-tracking fork choice, the build big-picture
- Architecture — the "build everything in one script" approach, the sandbox/
actors (emitter/portal/bubble/handle/popups), collision layers + signals ELI5
- Hand Tracking — pinch detection, hysteresis, grab-by-point, the noise fixes
(median de-spiker, midpoint continuity, sticky release), hand-mesh bone fix
- Procedural Audio — real-time AudioStreamGenerator synthesis, C-minor-pentatonic
pitch-snapping, the audible 30s clock
- visionOS Gotchas — the silent killers + a 20-second pre-flight checklist
- Build and Deploy — the export→xcodebuild→install loop, explained flag by flag
Plus _Sidebar nav and _Footer. Home rewritten to lead with the dev guide and the
new hand-tracking hero GIF.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>