FPV chat: add proximity fallback when raycaster misses agents

Fix FPV camera height to match agent scale, increase interact range

Fix FPV NPC chat: overlay no longer blocks dialog, add interact prompt

Ethereal clouds + moon shadow blends with sky color

Fix day display, DB growth, console errors; add FPV NPC chat with speech input

Enhanced building architecture: chimneys, porches, bay windows on houses; balconies and cornices on apartments; glass curtain-wall office; sawtooth roof factory with loading dock; rose window church with buttresses; clock tower school; cinema with ticket booth; hospital with helipad; museum with columns and dome; park with gazebo and flower beds; ornate town square fountain

Fix FP/VR visibility in iframe, speed control, pointer lock

First-person VR mode, calendar system, agent fixes, player character

Fix street lamps (glow sprites + few PointLights), speed controls in demo mode

Street lamps, moon/stars fix, 100 agents with lifecycle, resizable panel

Brighter night scene, building interior view on click

Weather system, day/night cycle, agent behaviors, city expansion

Integrate 3D city into main UI: iframe viewport 7/8 + data panel 1/8 right

Add 3D city visualization: buildings, humanoid agents, sky environment