fix: crash loop recovery, auto-migrations, CI test pipeline

- Wrap startup syncs in safeStartup() to prevent crash on external service failure
- Add migrate-entrypoint.sh for auto-generating migrations from schema diff
- Update Dockerfile migration stage to use entrypoint script
- Add test job to build-and-publish workflow (runs before build)
- Add tests.yaml workflow to run tests on every push
- Fix test setup to use real RSA key pair instead of plain strings
- Add test script to package.json

prisma/migrate-entrypoint.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+set -e
+
+# Generate diff SQL between current migrations and the Prisma schema
+DIFF_SQL=$(bunx prisma migrate diff \
+  --from-migrations prisma/migrations \
+  --to-schema-datamodel prisma/schema.prisma \
+  --script 2>/dev/null || true)
+
+# If there's a meaningful diff (not just empty/comments), create a migration
+if [ -n "$DIFF_SQL" ] && echo "$DIFF_SQL" | grep -qvE '^\s*$|^--'; then
+  TIMESTAMP=$(date -u +"%Y%m%d%H%M%S")
+  MIGRATION_DIR="prisma/migrations/${TIMESTAMP}_auto_generated"
+  mkdir -p "$MIGRATION_DIR"
+  echo "$DIFF_SQL" > "$MIGRATION_DIR/migration.sql"
+  echo "[migrate] Created migration: $MIGRATION_DIR"
+else
+  echo "[migrate] Schema and migrations are in sync — no migration needed."
+fi
+
+# Deploy all pending migrations
+echo "[migrate] Running prisma migrate deploy..."
+bunx prisma migrate deploy