P0: Vercel deploys blocked — Upstash Redis integration 'stufflibrarycache' is suspended

[mcull]

Every Vercel deployment currently fails with `Resource provisioning failed` before the build even starts. Discovered on PR #339's preview deploy; reproduced with `vercel redeploy` (deployment dpl_AdZTiyVQwXLvswvAFpTVy2goyRzt and the redeploy both fail identically). The local production build passes, so this is not a code issue.

Root cause: the project's marketplace integration store `stufflibrarycache` (Upstash Redis) has status `suspended` (confirmed via `GET /v1/storage/stores`; the three Blob stores are `available`). A suspended connected resource fails provisioning at deploy time.

Impact

• No code can ship to production or previews until this is resumed — the last successful deploy was 2025-10-21 (233 days ago).
• Prod's `KV_REST_API_*` env vars point at a suspended Redis, so the new spend cap (P0-2 · Auth + hard spend caps on AI/Maps endpoints #329 / PR P0-2: Auth + hard daily spend cap on paid AI/Maps endpoints #339) fails open in prod, and the Redis-backed rate limiting planned in P0-3 · Move rate limiting to Redis #330 (P0-3) has nothing to talk to.

Action (Marc — needs console access)

1. Vercel dashboard → cull-ventures/stufflibrary → Storage → `stufflibrarycache`: check the suspension reason (likely Upstash billing/inactivity) and resume or re-create the store.
2. Confirm `KV_REST_API_URL` / `KV_REST_API_TOKEN` are (re)linked to the project for Production + Preview.
3. Redeploy main; confirm the preview/prod deploy goes green.

Blocks the deploy path for everything in Phase 0.