Everything client-facing for Arbiter, a pay-per-question human-intelligence oracle settled on Stellar/Soroban: the worker console, the buyer dashboard, the marketing/landing page, and the headless demo scripts that exercise the whole system without a browser. Talks to arbiter-backend, which in turn settles against arbiter-contract.

Originally split out of a monorepo; that monorepo is now retired — this repo is the sole source of truth for app/, demo-agent/, e2e/, and landing/ going forward, version-checked against arbiter-backend's reported API version rather than kept in lockstep by hand (see #150). Pre-split history and the round-by-round build narrative live in the archived arbiter repo.

app/          # Vite worker console (index.html) + buyer dashboard (dashboard.html)
landing/      # static marketing site + live "try it now" sandbox widget
demo-agent/   # headless buyer/worker/proof scripts (ask.js, worker-sim.js, sponsored-demo.js)
e2e/          # browser click-through harness (stubbed)

• app/src/localWallet.js — a non-custodial, browser-generated quick-start wallet alongside real wallet-connect support (Freighter/Lobstr/xBull/ Hana/Albedo/HOT Wallet), so trying the product doesn't require installing an extension first.
• demo-agent/sandbox-ask.js — zero setup, no wallet, no chain: the fastest way to see a real response shape.
• demo-agent/sponsored-demo.js — proves, on real testnet, that a keypair which has never held a stroop of XLM can create an account, open a trustline, pay for a question, and get settled, entirely sponsored.
• app/admin.html — a bearer-token-gated read-only ops console (transactions, workers, payers, live treasury balance, fee revenue, fraud/trust monitoring) served against arbiter-backend's /admin/*.

cd app && npm install && npm run dev      # or: npm run build
cd landing && python3 -m http.server 8123 # static, no build step

cd demo-agent && npm install
cp .env.example .env
node sandbox-ask.js "What year did Stellar launch?"   # zero setup
node ask.js "What is the capital of France?"           # real on-chain flow

Verified live against a real deployed contract on Stellar testnet. (That run predates this repo's split; see "Round 6" in the archived arbiter monorepo README for the full run — real ask.js/worker-sim.js/sponsored-demo.js executions, transaction links included.)