- Pure geometry library src/lib/map/* (grid, distance 5e/pf2e/euclid, AoE
circle/cone/line/square, polygon rasterize + point-in-polygon, brush, fog set
algebra, player projection) with unit tests.
- Schema: map tokens gain size/kind/characterId/hp/conditions/gmOnly; maps gain
drawings/gridUnit(feet)/gridType/fogVersion + point/drawing sub-schemas. Dexie v8
additive migration; mapsRepo.get + transactional mutate.
- Editor split into a shared MapCanvas renderer + MapEditor tool state machine:
fog via brush/rectangle/polygon (+ size, reveal-all/hide-all), measurement
(system-aware distance in feet), AoE templates (circle/cone/line/square preview),
drawing annotations (freehand/line/arrow/rect/circle/text, GM-only), pings, and
richer tokens (NxN size, character link with live HP ring, condition dots, edit popover).
- Player-facing projection: toPlayerProjection strips GM-only content; PlayerMapView
renders it read-only with opaque fog; uiStore.activeMapId + 'Show to players'; the
player view now shows the live battle map. enemyStatus extracted to
src/lib/combat/playerProjection.ts (reused, and for Phase 18).
9 geometry unit tests; maps e2e covers upload→token→reveal-all→player projection.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>