[runtime] `apify call` fails if the TS project was not built outside the runtime

[gullmar]

After connecting to the runtime and performing apify push, the Run fails immediately because the Actor was never built locally:

2026-09-24T14:18:35.295Z [actor-runtime] Live dev folder: /Users/me/myactor (mounted over the image's working directory /usr/src/app; node_modules preserved via a per-run volume)
2026-09-24T14:18:35.295Z [actor-runtime] !! Running in `Live dev folder mode`: this run uses the local source files above, mounted over the
2026-09-24T14:18:35.295Z [actor-runtime] !! built Docker image. TS-based Actors require local compilation (e.g. `npm run build`) before the run.
2026-09-24T14:18:35.295Z [actor-runtime] !! To run purely from the built Docker image, use `apify call --no-dev-folder`.
2026-09-24T14:18:35.823Z node:internal/modules/cjs/loader:1568
2026-09-24T14:18:35.823Z   throw err;
2026-09-24T14:18:35.823Z   ^
2026-09-24T14:18:35.823Z 
2026-09-24T14:18:35.823Z Error: Cannot find module '/usr/src/app/dist/main.js'
2026-09-24T14:18:35.823Z     at Module._resolveFilename (node:internal/modules/cjs/loader:1564:15)
2026-09-24T14:18:35.823Z     at wrapResolveFilename (node:internal/modules/cjs/loader:1118:27)
2026-09-24T14:18:35.823Z     at defaultResolveImplForCJSLoading (node:internal/modules/cjs/loader:1142:10)
2026-09-24T14:18:35.823Z     at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1169:12)
2026-09-24T14:18:35.823Z     at Module._load (node:internal/modules/cjs/loader:1341:5)
2026-09-24T14:18:35.823Z     at wrapModuleLoad (node:internal/modules/cjs/loader:261:19)
2026-09-24T14:18:35.823Z     at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5)
2026-09-24T14:18:35.823Z     at node:internal/main/run_main_module:33:47 {
2026-09-24T14:18:35.823Z   code: 'MODULE_NOT_FOUND',
2026-09-24T14:18:35.823Z   requireStack: []
2026-09-24T14:18:35.823Z }
2026-09-24T14:18:35.823Z 
2026-09-24T14:18:35.823Z Node.js v24.21.0

This is because apify call mounts the current directory by default.
Maybe the CLI could detect that the build folder is missing and warn the user.

[l2ysho]

@Pijukatel assigned to you as it is actor-runtime related

[Pijukatel]

The log already contains hints about this error:

2026-09-24T14:18:35.295Z [actor-runtime] !! Running in Live dev folder mode: this run uses the local source files above, mounted over the
2026-09-24T14:18:35.295Z [actor-runtime] !! built Docker image. TS-based Actors require local compilation (e.g. npm run build) before the run.
2026-09-24T14:18:35.295Z [actor-runtime] !! To run purely from the built Docker image, use apify call --no-dev-folder.

I will make it even more explicit to make sure users understand what is wrong.