[Blocker] feat: v2.5 — Daytime city map + fix camera roll

## GitHub Update **Repository:** [MKWcorp/carrstret](https://github.com/MKWcorp/carrstret) **Author:** Carrstret Dev **Date:** 3/28/2026, 8:30:45 AM **Commit:** [`abb2ca7`](https://github.com/MKWcorp/carrstret/commit/abb2ca7bed4c6403f8c124c181f60782537a70f7) ### Commit Message feat: v2.5 — Daytime city map + fix camera roll FIX KAMERA MIRING: - Hapus camera roll (rotation.z) sepenuhnya - camera.up.set(0,1,0) setiap frame — kamera selalu tegak - Kamera tidak ikut rotasi mobil langsung - Smooth camYaw terpisah dari carYaw (lerp independen) - Yaw diff di-normalize ke -π..π untuk smooth wrap-around - Dynamic FOV tetap ada (speed sensation) DAYTIME CITY MAP: - Sky shader atmosfer realistis (biru cerah, matahari siang) - Fog biru tipis (#c9e8ff) untuk kedalaman visual - Ambient 1.4 + directional 3.5 (cahaya siang terang) - Hemispherelight langit biru + tanah abu - Aspal abu-abu gelap (#3a3a3a) - Trotoar beton (#c8c0b0) - Taman hijau di interior circuit - Jersey barrier putih beton - 20 gedung dengan detail: kaca, beton, rooftop, antena - 10 street lamps dengan tiang - 16 pohon di trotoar dan plaza - Centerpiece plaza (tugu kaca) - Garis start/finish merah-putih - Marka jalan kuning putus-putus --- _This story was imported from historical commits._