scena 1.0.0

A Rust-native scene-graph renderer with typed scene state, glTF assets, and explicit prepare/render lifecycles.
Documentation
# Release Notes Template

Type: Execution template.

## Release

Version:
Tag:
Reviewed commit:

## Added

-

## Changed

-

## Fixed

-

## Release Evidence

- Local gates:
- CI run:
- Release-lane artifacts:
- WASM size artifact:
- Browser rendered-output artifact:
- Native rendered-output artifacts:
- `cargo publish --dry-run`:
- Doctor:

## Known Deferrals

- ADR:
- Owner:
- Expiry:
- Replacement evidence:

## Non-Goals

This release does not add simulation, robotics, PLC/domain logic, physics, ECS, or
game-engine ownership.