Fieldwright-v0.1.0

Initial release v0.1.0

Phase 1 (foundation), Phase 2a (ghost rendering), Phase 2b (snap-to-look
with yaw-based auto-rotation and place-toggle), and Phase 3a (match
tracking + checklist HUD). Client-side only; reads BlockChanged events
and player inventory, never writes.

Hotkeys: Ctrl+Shift+B/N for corners, Ctrl+Shift+P to toggle place,
Ctrl+Shift+L to toggle the checklist HUD. Commands under .fw prefix.

Multi-block placeholder cells are excluded from materials list and
air-violation set. Match logic uses group keys (FirstCodePart) so
auto-oriented variants count as the same block. Auto-dismisses ghost
and HUD 5.5s after completion.