feat(frontend): render wizard previews from core, not from the backend router

[marcalexiei]

The wizard ran the whole apps/backend router in the browser.
#536 added node:crypto to src/common/database.js, Vite's browser stub for a Node builtin throws on the first named-export causing e2e tests timeouts.
pg already needed a rolldownOptions.external escape hatch for the same reason.

• src/wizard/renderCard.ts maps a card URL's pathname to the matching packages/core handler and SvgInline calls it.
  mock-http.ts and the the pg external are removed alongside backend dependency.
  Resolves the // will be solved by npm package
  

  github-stats-extended/apps/frontend/src/wizard/components/Card/SvgInline.tsx

  Lines 76 to 78 in 2e8537d

  	// will be solved by npm package
  	// eslint-disable-next-line @typescript-eslint/no-unsafe-call
  	await router(req, res);

• e2e/stubCardApi.ts fulfils the card endpoints, so the Display stage's fetch of https://<host>/api… no longer logs network errors during e2e.

[vercel]

@marcalexiei is attempting to deploy a commit to the martin-mfg's projects Team on Vercel.

A member of the Team first needs to authorize it.