feat: phase 6 production hardening + DB-to-DB transfer

Security:
- Graceful shutdown: http.Server + signal.NotifyContext, 10s drain,
  retention sweeper cancelled before pool close
- Scoped API keys (migration 00006): ingest/read/write/admin enforced in
  auth middleware; scope picker + badges in Settings UI; scopeless legacy
  keys act as admin. Read-only keys now get 403 on ingest (verified live)
- nginx: baseline security headers on all responses, CSP scoped to SPA;
  fixed add_header inheritance shadowing
- better-auth rate limit enabled unconditionally (was gated on NODE_ENV,
  which the shipped .env sets to development)
- Mailpit moved to docker-compose.dev.yml; prod compose cannot expose it
- setup.sh generates PRIMORA_ENCRYPTION_KEY

Reliability/ops:
- Retention: per-project retention_{events,audit,webhook}_days
  (migration 00007, 0=off) + hourly RetentionSweeper; edit UI in Projects
- GET /api/v1/metrics Prometheus exposition
- compose: healthchecks + restart policies everywhere, dragonfly pinned
  to v2.0.0, depends_on service_healthy
- backup.sh/restore.sh (pg_dump -Fc + storage volume); restore verified
  against scratch postgres+volume
- .dockerignore: exclude target dirs (build context was 4.7GB)

Correctness/testing:
- DBX transfer endpoint: POST /db-connections/:id/transfer — SQL or Redis
  target, 1000-row bound, server-side creds (verified live pg→dragonfly)
- Pagination audit: ListComponents capped at 500 (auto-registers)
- CI: goose up/reset/up job + compose e2e-smoke job (smoke-e2e.sh
  verified locally: signup, bootstrap, scoped keys, ingest, metrics)
- k6 load sanity script: 6650 reqs, ~217/s, 0 real failures, p95 221ms
  (429s = configured rate limiter working)

Docs: DEPLOYMENT_GUIDE.md, PRODUCTION_READINESS.md; verify script
repaired (stale refs + set -e arithmetic abort). ROADMAP: phase 2 +
phase 6 marked complete.

Authored By: TDvorak <[email protected]>

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

scripts/setup.sh

@@ -26,15 +26,18 @@ if [ ! -f .env ]; then
     echo "🔐 Generating secure secrets..."
     JWT_SECRET=$(openssl rand -base64 32)
     BETTER_AUTH_SECRET=$(openssl rand -base64 32)
+    ENCRYPTION_KEY=$(openssl rand -hex 32)
     
     # Update .env with secrets
     # Use different sed approach for better compatibility
     if [[ "$OSTYPE" == "darwin"* ]]; then
         sed -i '' "s/JWT_SECRET=change-me-super-long-jwt-secret/JWT_SECRET=$JWT_SECRET/g" .env
         sed -i '' "s/BETTER_AUTH_SECRET=change-me-super-long-better-auth-secret/BETTER_AUTH_SECRET=$BETTER_AUTH_SECRET/g" .env
+        sed -i '' "s/^PRIMORA_ENCRYPTION_KEY=.*/PRIMORA_ENCRYPTION_KEY=$ENCRYPTION_KEY/" .env
     else
         sed -i "s/JWT_SECRET=change-me-super-long-jwt-secret/JWT_SECRET=$JWT_SECRET/g" .env
         sed -i "s/BETTER_AUTH_SECRET=change-me-super-long-better-auth-secret/BETTER_AUTH_SECRET=$BETTER_AUTH_SECRET/g" .env
+        sed -i "s/^PRIMORA_ENCRYPTION_KEY=.*/PRIMORA_ENCRYPTION_KEY=$ENCRYPTION_KEY/" .env
     fi
     echo "✅ .env file created and secured."
 else
@@ -55,12 +58,13 @@ else
     sed -i "s/VITE_APP_URL=http:\/\/localhost/VITE_APP_URL=http:\/\/$DOMAIN/g" .env
 fi
 
-# Start services
+# Start services — the dev overlay adds mailpit for local email capture.
+# Production deploys use the base file alone: docker compose up -d
 echo "📦 Pulling images and starting services..."
 if command -v docker-compose &> /dev/null; then
-    docker-compose up -d
+    docker-compose -f docker-compose.yml -f docker-compose.dev.yml up -d
 else
-    docker compose up -d
+    docker compose -f docker-compose.yml -f docker-compose.dev.yml up -d
 fi
 
 echo ""