App 2.40.0: Grid with map straight from above, full height

The map fills the whole screen, top-down and heading up, about 400 m
ahead and 450 m to each side, over a ground grid that turns with it.
The speed moves to a panel under the gears; the battery wall, the
clock, the gears and the disc stand on dark panels over the map.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6

SPECS.md

@@ -138,6 +138,14 @@ tyre pressures, GPS (lat, lon, elevation, heading) and the is_* flags. It does *
   confirmed car facts, app structure, UI conventions, build/test/ship, documents. It replaces
   upstream's EVABRPUploader text. The test emulator is now in the flake: `nix run .#car-emulator`
   (Android 9 AOSP at 1920×720, 160 dpi; the car build installs as the system user — checked).
+- 2026-10-27 — App 2.40.0: **Grid with map straight from above, full height** (owner: 2.39.2
+  "does not look right"; wanted the map over the whole height and fully top-down). The map is
+  the whole background in map mode: orthographic, heading up, 1.2 layout units per metre (about
+  400 m ahead, 125 m behind, 450 m to each side on the car's screen), the car 150 units above
+  the bottom edge; ground grid every 50 m fixed to the ground; roads from 250 m ahead fainter;
+  the camera, the sky and the floor are gone there. The speed moves to a panel under the gears
+  (120 units), and the battery wall, the clock, the gears and the disc get dark panels. The
+  plain Grid is unchanged. Emulator with the Berlin tiles, both layouts. Not tried on the car.
 - 2026-10-27 — App 2.39.2 published (`car-2.39.2`).
 - 2026-10-27 — App 2.39.2: **Grid with map seen from higher up** (owner: the map looked like a
   fish-eye; wanted it more top-down). The map has its own pinhole camera now: 45° down, 300 m