Fix Ably 503 auth error, add live trading page, localStorage draft persistence, owner profiles, CI/CD + Docker

[Copilot]

Ably was unconditionally attempting a Realtime connection even when ABLY_API_KEY is absent, causing 503 token-request errors to flood the console. Several UX gaps existed (agent builder losing state on navigation, no owner attribution on agent cards). No containerisation or CI pipeline was present.

Ably 503 — graceful degradation

useMarketplaceFeed now probes /api/ably/token before instantiating Ably.Realtime. A non-2xx response sets connectionState: 'unavailable' and returns silently instead of triggering Ably's auth-error retry loop.

const probe = await fetch('/api/ably/token', { method: 'GET' });
if (!probe.ok) { setConnectionState('unavailable'); return; }

AgentBuilder — localStorage draft persistence

Form state + current step persisted to localStorage (agent_builder_draft / agent_builder_step) on every change. Draft is restored on mount with a dismissible banner; cleared on successful deploy.

/trading — live trading page

New page at /trading with:

• Live price chart (recharts AreaChart, 1500 ms ticks) with breakout resistance/support ReferenceLines, and dynamic TP/SL + liquidation price overlays
• Order panel — Market/Limit, collateral, leverage (1–10×), TP/SL inputs, agent SDK template selector (triggers 0x402 fee)
• Open position panel with live unrealised PnL
• Testnet / Mainnet toggle, TVL display
• Agent SDK Templates tab — 4 pre-built strategy cards + 0x402 SDK code snippet

Agent owner profiles

AgentCard renders a coloured avatar + clickable truncated owner address linking to their dashboard profile instead of inert plain text.

CI/CD + Docker

• .github/workflows/ci.yml — lint-and-type-check → build (artefact upload) → docker-build (main only); all jobs scoped to permissions: contents: read
• Multi-stage Dockerfile (standalone Next.js runner) + docker-compose.yml (web + optional consumers service)
• output: 'standalone' added to next.config.mjs

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Project	Deployment	Actions	Updated (UTC)
0x402-pubsub	Ready	Preview, Comment	Mar 29, 2026 10:26pm