Update README with comprehensive project documentation and setup guide

README.md

@@ -1,26 +1,119 @@
-# webeditor3d
-
-**Author:** Unknown
-
-> ⚠️ **This README.md has been automatically generated using AI and might contain hallucinations or inaccuracies. Please proceed with caution!**
-
 # WebEditor3D
 
-**Author:** Unknown
+WebEditor3D is a browser-based engine/editor for authoring interactive 3D
+environments and running them immediately in the browser.
 
-A browser-based 3D scene authoring tool with a built-in runner.
+The core loop is:
 
-## Features
-- Brush-first spatial authoring
-- Imported assets as first-class additions
-- Typed entities and simple interactions
-- Browser-native delivery
+1. author a scene
+2. save or load the project
+3. enter run mode without leaving the editor
 
-## Usage
+The project is focused on fast whiteboxing, imported assets, typed entities,
+simple interactions, and web-native delivery. It is not intended to replace
+Blender, CAD tools, or a general-purpose engine platform.
 
-bash
+## Current Capabilities
+
+- Whitebox authoring with box, wedge, cylinder, cone, and torus primitives.
+- Object transforms plus face, edge, and vertex selection foundations.
+- Per-face materials, UV controls, climbable faces, water volumes, and light
+  volume settings for whitebox solids.
+- Authored terrain with sculpt and paint tools.
+- GLB/GLTF model import, including multi-file GLTF packages and Draco assets.
+- Imported image and audio assets stored in the project asset registry.
+- Placed `modelInstances` with explicit collision modes.
+- Typed entities such as `PlayerStart`, `SceneEntry`, `NPC`, `CameraRig`,
+  `TriggerVolume`, `TeleportTarget`, `Interactable`, local lights, and sound
+  emitters.
+- Interaction links for runtime behavior such as teleport, visibility, audio,
+  animation, control effects, and sequences.
+- Multi-scene project state with scene loading screen settings.
+- Project-wide time, day/night lighting, scheduler routines, sequence authoring,
+  and dialogue foundations.
+- Built-in runner with first-person and third-person navigation, Rapier
+  collision, scene transitions, dialogue overlay, spatial audio, and animation
+  playback.
+- Multi-viewport editor layout with perspective, top, front, and side views.
+
+## Getting Started
+
+Use a current Node.js LTS release.
+
+```bash
+npm install
 npm run dev
+```
 
+Vite will print a local URL, typically `http://localhost:5173/`.
+
+## Common Scripts
+
+```bash
+npm run dev           # start the Vite dev server
+npm run build         # typecheck and build the app
+npm run typecheck     # run TypeScript without emitting files
+npm run lint          # run ESLint
+npm test              # run Vitest tests
+npm run test:watch    # run Vitest in watch mode
+npm run test:browser  # run Playwright browser tests
+npm run test:e2e      # alias for Playwright browser tests
+```
+
+## Project Files
+
+User-facing save/load uses portable `.we3d` project packages. A package is a zip
+archive containing canonical project JSON plus referenced assets.
+
+Important format boundaries:
+
+- The editable project format is the `.we3d` project package.
+- The canonical document is versioned and migrated through serialization code.
+- Runtime output is separate from editable save/load.
+- Blob URLs are transient loading details, not persisted asset references.
+
+## Architecture Map
+
+- `src/document`: canonical project and scene document state.
+- `src/commands`: undoable editor mutations.
+- `src/geometry`: derived whitebox, terrain, mesh, and collider generation.
+- `src/viewport-three`: editor viewport rendering and interaction helpers.
+- `src/runtime-three`: play-mode runtime, scene build, collision, scheduling,
+  audio, navigation, interactions, and scene transitions.
+- `src/assets`: imported model, image, audio, and asset storage adapters.
+- `src/entities`: typed scene objects with editor/runtime semantics.
+- `src/interactions`: authored trigger/action links.
+- `src/controls`, `src/scheduler`, `src/sequencer`, `src/dialogues`: shared
+  control surface, time-based orchestration, sequence steps, and dialogue data.
+- `src/serialization`: JSON serialization, migrations, autosave, and `.we3d`
+  package import/export.
+- `src/app`: React editor shell and panels.
+- `src/runner-web`: React wrapper for the built-in runner canvas.
+
+## Development Notes
+
+- `ProjectDocument` / `SceneDocument` is the source of truth.
+- Editor-authored mutations should go through commands.
+- Three.js scenes, meshes, materials, and runtime objects are derived state.
+- Imported assets live in the asset registry.
+- Placed imported assets live in `modelInstances`.
+- Typed runtime/editor objects live in `entities`.
+- Global ambient, sun, background, fog, and project time live in project/world
+  settings.
+
+## Verification
+
+For a normal code change, run the narrowest relevant checks. Useful defaults are:
+
+```bash
+npm run typecheck
+npm test
+npm run test:browser
+```
+
+Use Playwright tests when browser behavior, rendering, input, or the built-in
+runner is part of the change.
 
 ## License
-This project is licensed under the MIT License.
+
+No license file is currently included in this repository.