Código Claude

# Elata app

This is a browser app for Elata (https://app.elata.bio), built on
the Elata SDK. It is a static web build that runs inside a sandboxed
iframe in Elata.

## Docs
- Docs home: https://docs.elata.bio (full text for agents: https://docs.elata.bio/llms-full.txt)
- Building apps: https://docs.elata.bio/apps/build/overview
- Host bridge (Elata APIs): https://docs.elata.bio/apps/platform/host-bridge
- SDK overview: https://docs.elata.bio/sdk/overview
- Package references for agents: node_modules/@elata-biosciences/<package>/llms.txt

## Packages
- @elata-biosciences/rppg-web: camera heart rate (use createRppgSession)
- @elata-biosciences/eeg-web + eeg-web-ble: EEG over Web Bluetooth (Muse built in)
- @elata-biosciences/ppg-web: headband PPG heart rate and HRV
- @elata-biosciences/biosignal-session / biosignal-analytics: recording and analysis (not yet on npm)
- @elata-biosciences/app-payments: in-app purchases (Elata checkout)
- @elata-biosciences/app-state: per-user key-value storage (not yet on npm; use the elata:state:* messages)
- @elata-biosciences/app-metrics: event records, scores, reportAffect

## Elata rules
- The build must actually use an Elata sensor SDK (rPPG, EEG, or PPG), or upload fails.
- Ship a zip with index.html at the root; use relative asset URLs.
- Never handle wallets, payments, or sessions in the app. Use app-payments for purchases.
- Never send raw camera frames, audio, or raw biosignals off the device.
- Never access window.parent beyond postMessage.
- Put the release version in public/elata.json: { "version": "x.y.z" }.

## Commands
- npm run dev        start the dev server
- npm run build:zip  build and write app.zip for upload