- ExecDto gains optional `environment` and `credentials` fields
- BrowserService.exec forwards both to CodeExecutorService.execute so
helpers.env, helpers.getEnvUrl(), and helpers.getCredential() work
identically to scenario-scheduler steps
- script console.log/warn/error now routed through TraceLogger with
session label prefix
- integration tests cover env/creds injection and missing-alias error
- update scenario tests to create runs with required environmentId
- adjust browser controller expectations to session auto-create behavior
- sync playwright/context mocks with current browser service usage
- move NestJS app into server/ subdirectory
- add client/ React+TypeScript (Vite) app with Hello World
- update docker-compose to build and run both services
- add root package.json declaring npm workspaces
- update .gitignore to cover node_modules and dist at all depths