[Blocker] fix: v2.2 — Fix mobil tembus track saat spawn

## GitHub Update **Repository:** [MKWcorp/carrstret](https://github.com/MKWcorp/carrstret) **Author:** Carrstret Dev **Date:** 3/27/2026, 3:14:49 PM **Commit:** [`d3c6794`](https://github.com/MKWcorp/carrstret/commit/d3c6794ea4752904eaf667524af518629b1c4065) ### Commit Message fix: v2.2 — Fix mobil tembus track saat spawn ROOT CAUSE: - Spawn Y=2.5 terlalu tinggi, physics belum ready di frame pertama - Raycast max distance 2.5m tidak cukup - Ground floor ada gap dengan road surface FIX: 1. Spawn Y = TRACK_SURFACE_Y + CAR_HALF_H + 0.05 = 0.70 (tepat di atas track surface, tidak ada jatuh bebas) 2. Frame guard: 10 frame pertama paksa posisi spawn (tunggu physics world & collider aktif) 3. Raycast max distance 8m (dari 2.5m) 4. Ray origin Y + 0.5 (lebih tinggi dari center) 5. Ground snap agresif di frame < 30 (lerp 1.0) 6. Ground floor diperluas: Y=-2, tebal 4m, 400x400 (tidak ada celah dengan road Y=0 to 0.4) 7. Physics timeStep fixed 1/60 (konsisten) 8. Manual gravity 30 m/s2 (lebih kuat) --- _This story was imported from historical commits._