feat: add npm run deploy script for o2switch deployment

Consolidates the manual deploy steps (env copy, install, prisma
generate/migrate deploy, build, pm2 startOrRestart+save) documented
in the README into a single scripts/deploy.sh run over SSH.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

package.json

@@ -19,7 +19,9 @@
     "worker:pm2:status": "pm2 status ombrora-worker",
     "worker:pm2:logs": "pm2 logs ombrora-worker",
     "db:migrate": "prisma migrate dev",
-    "db:generate": "prisma generate"
+    "db:migrate:deploy": "prisma migrate deploy",
+    "db:generate": "prisma generate",
+    "deploy": "bash scripts/deploy.sh"
   },
   "jest": {
     "testEnvironment": "node",