Ilia Denisov
e55355a2cf
Fixes a black-canvas regression on /map after creating a science in DEV: when Vite hot-reloads the decoder bump that adds the `localScience` field, the live in-memory `gameState.report` keeps its older shape with no such field, so the overlay's `[...report.localScience]` throws inside the reactive getter and silently aborts the map view's `$effect`. The fix wraps the spread and the final return in `?? []` defaults — and matches the ship-class branches for symmetry — so the overlay stays well-defined for any partial report shape upstream consumers may carry across an HMR boundary. Also adds order-overlay regression tests covering the createScience / removeScience branches plus the explicit HMR-stale shape, and a Playwright e2e (sciences-map-regress.spec.ts) replaying the user-reported flow: /map → /designer/science → save → /map, asserting no map-mount-error overlay and no console errors. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>