npm run dev does not work with docker

[chualuoi]

💡 Summary

🥰 Expected Behavior

Able to use docker for development by running npm run dev

🤬 Actual Behavior

Getting error message

Cannot find module '/misskey/packages/backend/built/index.js'
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15)
    at Function.Module._load (node:internal/modules/cjs/loader:778:27)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:77:12)
    at node:internal/main/run_main_module:17:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}

📝 Steps to Reproduce

1. Change Dockerfile CMD from ["npm", "run", "migrateandstart"] to ["npm", "run", "dev"]
2. Build and launch as guided in https://misskey-hub.net/en/docs/install/docker.html

Note: Misskey can start sucessfully with CMD ["npm", "run", "migrateandstart"].

📌 Environment

Misskey version: 12.119.2
Your OS: Debian
Your browser:

[KisaragiEffective]

triage: this is fixed in earlier than #14235, see https://github.com/misskey-dev/misskey/blob/ec1c392f1e409e707ba81dfcd45112efb418c7aa/CONTRIBUTING.md#use-docker-compose