chore(debug): tune physics test scene and drop noisy waypoint logs

Lower grabbable spawn, expose GPS preview position/rotation as
constants, fix physics spawn to use PLAYER_EYE_HEIGHT, and silence
the console.log noise around waypoint loading in TestMap.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/data/world/mapLodConfig.ts

@@ -24,7 +24,6 @@ export function getMapLodModelPath(modelName: string): string | null {
   );
 }
 
-
 export const MAP_LOD_SCALE_MULTIPLIERS = {
   sapin: 0.35,
   buisson: 0.7,