FRE-4955 Review silent active run for Code Reviewer

- FRE-4955: 9th stale-run eval for Code Reviewer zombie run , marked false positive
- FRE-4954: Investigation of Code Reviewer adapter reliability closed as done. Root cause: no heartbeat/adapter config. Fix tracked in FRE-4956 (CEO)
- Broader CTO oversight: Senior Engineer bottleneck (19 in_review), Code Reviewer ghost runs awaiting FRE-4956

Co-Authored-By: Paperclip <noreply@paperclip.ing>

plans/FRE-4678-vercel-setup.md

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+# Vercel Project Setup for AudiobookPipeline
+
+## Issue: FRE-4678
+
+## Overview
+Create Vercel project for AudiobookPipeline web app and configure all required environment variables.
+
+## Environment Variables
+
+### Database (Turso)
+- `TURSO_DATABASE_URL` - Turso database connection URL
+- `TURSO_AUTH_TOKEN` - Turso authentication token
+
+### Authentication (Clerk)
+- `CLERK_SECRET_KEY` - Clerk secret key for server-side operations
+- `VITE_CLERK_PUBLISHABLE_KEY` - Clerk publishable key for client-side operations
+
+### Payments (Stripe)
+- `STRIPE_SECRET_KEY` - Stripe secret key for server-side operations
+- `VITE_STRIPE_PUBLISHABLE_KEY` - Stripe publishable key for client-side operations
+- `STRIPE_PRICE_ID_STANDARD` - Stripe price ID for Standard tier
+- `STRIPE_PRICE_ID_UNLIMITED` - Stripe price ID for Unlimited tier
+
+### Storage (S3)
+- `S3_ENDPOINT` - S3 endpoint URL
+- `S3_ACCESS_KEY` - S3 access key ID
+- `S3_SECRET_KEY` - S3 secret access key
+- `S3_BUCKET` - S3 bucket name
+
+### Application
+- `APP_URL` - Application URL (Vercel deployment URL)
+
+## Build Configuration
+
+### vercel.json
+```json
+{
+  "buildCommand": "npm run build",
+  "outputDirectory": "dist",
+  "devCommand": "npm run dev",
+  "installCommand": "npm install",
+  "framework": "vite",
+  "regions": ["iad"]
+}
+```
+
+## Setup Steps
+
+1. ✅ Create `vercel.json` with build configuration
+2. ✅ Create `.env.local` with environment variable placeholders
+3. ✅ Create `scripts/setup.sh` automation script
+4. ⏳ Run setup script to create Vercel project
+5. ⏳ Replace placeholder values with actual credentials
+6. ⏳ Deploy and verify build completes successfully
+
+## Next Actions
+
+- Run `./scripts/setup.sh` to create the Vercel project
+- Update `.env.local` with actual credential values
+- Deploy to verify the configuration works
+
+## Notes
+
+- The setup script handles Vercel CLI installation if not present
+- Environment variables are set across all environments (production, development, preview)
+- The Vite framework is configured for optimal build performance