fix: pass --env flag to auxiliary workers in multi-worker mode

[petebacondarwin]

Fixes #12212.

When running wrangler dev with multiple config files (e.g. -c ./apps/api/wrangler.jsonc -c ./apps/queues/wrangler.jsonc -e=dev), the --env flag was not being forwarded to auxiliary (non-primary) workers. Only disableDevRegistry and multiworkerPrimary were passed, so auxiliary workers used the default environment instead of the one specified by --env. This caused environment-specific bindings (like queue consumers) to not be triggered in local dev.

The fix adds env: args.env to the options passed to setupDevEnv for auxiliary workers, matching the behavior already in place for the primary worker (which receives the full args object).

Note for reviewers: It may be worth checking whether other args beyond env should also be forwarded to auxiliary workers — the current auxiliary setup only passes env, disableDevRegistry, and multiworkerPrimary.

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• Tests
  • Tests included/updated
• Public documentation
  • Documentation not necessary because: this is a bug fix for existing functionality
• Wrangler V3 Backport
  • Not necessary because: multi-worker mode is not in Wrangler V3

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Latest commit: 9211423

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commit: 9211423

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[dario-piotrowicz]

Looks good to me 🙂