AI-spel frontend instructions

This repository owns only the static, accessible web client and its container/chart packaging.
Rust remains the sole authority for game state. The frontend calls the backend through same-origin /api/... and /version paths.
Keep frontend and backend behind ai-spel.k3s.k0.nu so session cookies remain same-origin.
VERSION is the only release-version source in this repository. Use scripts/bump-version.py; do not manually edit chart versions.
Changes are written locally and built, checked, published, and exercised by Gitea Actions on the existing large runner and Kubernetes. Never run apps, tests, containers, images, or binaries locally. Do not create or register runners.
Never commit secrets, generated credentials, kubeconfigs, or environment files.
Helm charts are published to harbor.k3s.k0.nu/ai-spel; Argo CD uses the existing ai-spel project and namespace.
Player-facing speech uses the local Piper WebAssembly adapter when the player has activated audio. The voice model is downloaded once from the configured model repository and cached by the browser; game text is synthesized on-device and must never be sent to a TTS provider.
Build Piper/ONNX WebAssembly files in the large runner and serve them from the frontend image under the versioned /tts/piper-wasm-v1/ path. Never build or run these assets locally.