[crypto-raji]

Summary

• Reject non-success HTTP responses and malformed JSON through a shared API helper.
• Validate endpoint payload shapes before updating dashboard, activity feed, or account directory state.
• Preserve existing catch paths so failed requests stop loading without treating error payloads as data.

Verification

• API helper smoke check for 503 error payloads and malformed success payloads.

pulse-layer@0.1.0 build
next build

▲ Next.js 16.3.0 (Turbopack)
✓ Running next.config.ts took 46ms

Creating an optimized production build ...
✓ Compiled successfully in 2.4s
Running TypeScript ...
Finished TypeScript in 2.1s ...
Collecting page data using 1 worker ...
Generating static pages using 1 worker (0/5) ...
Generating static pages using 1 worker (1/5)
Generating static pages using 1 worker (2/5)
Generating static pages using 1 worker (3/5)
✓ Generating static pages using 1 worker (5/5) in 210ms
Finalizing page optimization ...

Route (app)
┌ ○ /
├ ○ /_not-found
└ ○ /icon.png

○ (Static) prerendered as static content

• Focused ESLint still reports existing and React hook violations in the touched dashboard files.

Fixes #95