[Spawn Platform]  →  zig-zag trail  →  [Breathing Circle]  →  trail continues  →  [Bonfire & Musician]

default.project.json
src/
  server/
    ScenerySetup.server.lua      ← full environment built at run-time
    MilestoneManager.server.lua  ← ProximityPrompts, rewards, music routing
  client/
    BreathingUI.client.lua       ← animated box-breathing overlay + lantern toast
    MusicUI.client.lua           ← musician dialog + genre buttons + audio player
    PlayerSetup.client.lua       ← standard follow-camera
  shared/
    MusicLibrary.lua             ← genre key → Roblox audio asset ID map

Player walks to Breathing Circle
  → presses ProximityPrompt
  → BreathingUI appears
  → Box breathing: Inhale 4s | Hold 4s | Exhale 4s | Hold 4s  × 4 rounds
  → BreathingComplete fires to server
  → Server spawns a rising lantern at player position
  → AwardLantern fires to client → toast notification slides in

Player walks to Bonfire
  → presses ProximityPrompt ("Talk to the Musician")
  → Musician dialog slides up; NPC speaks 3 lines
  → Genre buttons shown: Lo-Fi, Ambient, Classical, Jazz, Nature, Upbeat, Meditation, Folk
  → Player clicks a genre → PlayMusic(genreKey) fires to server
  → Server looks up audio ID in MusicLibrary → fires PlayMusic(genreKey, audioId) back to client
  → Client creates a looping Sound in SoundService and plays it
  → Now-playing bar slides up at screen bottom with Stop button