Feed Web (`apps/web`)

Next.js application: UI, API routes, SSE, auth wiring, and Vercel Analytics/Speed Insights.

Observability

Vercel Speed Insights (real-user Web Vitals) is wrapped in GatedSpeedInsights: route allowlist + session sampling + optional disable for minimal/embed layout.
Why documented centrally: Operators tune sampling without reading layout code; rationale for allowlists and defaults lives in one place.

Full write-up (WHYs, env vars, route list, roadmap): docs/observability/speed-insights.md.

Topic	Location
Observability index	`docs/observability/README.md`
Markets / terminal (example feature README)	`src/app/markets/README.md`

From repo root:

bash

bun run dev:web    # This app only
bun run build      # Production build (turbo)

See root README.md for full quality gates and monorepo commands.