Load redirects from content dir

[RubenSandwich]

Ticket

Redirects for local build are not pulling from local UDR API

Description

During local development we don't want to use the API to serve redirect files from /public, rather we want to read the redirect file in /content.

Testing

Local Dev

1. Run locally npm run dev
   1. prebuild is not needed
2. Edit a redirect file, such as:
   1. content/vault/v1.20.x/redirects.jsonc
3. Go to the redirect API endpoint for that product to confirm your changes
   1. http://localhost:8080/api/content/vault/redirects

Preview/Production

1. Make sure the redirect API is still working as intended:
   1. /api/content/vault/redirects
2. process.env.NODE_ENV in vercel is always "production" when deployed on vercel's servers, so "development" should only ever happen locally

[github-actions]

Vercel Previews Deployed

Name	Status	Preview	Updated (UTC)
Dev Portal	✅ Ready (Inspect)	Visit Preview	Tue Aug 5 19:24:09 UTC 2025
Unified Docs API	✅ Ready (Inspect)	Visit Preview	Tue Aug 5 19:18:33 UTC 2025

[LeahMarieBush]

I ran this locally and I'm still running into the issue where the local redirects are not being used. Here are the steps I took:

1. Changed a redirect in one of the redirects files
2. Ran make
3. Went to the link I changed and it is still redirecting to the old link

[LeahMarieBush]

Nvm, my redirect was cached so changing it did not work. LGTM!