--env-file option not respected

[primal marsh]

The --env-file option of the convex dev command is not being respected. There is also one more issue suffering from this https://discord.com/channels/1019350475847499849/1389435809337442335

For reference, this option was introduced back in https://github.com/get-convex/convex-backend/commit/2ed5fe1139153d0ede9828ffcd977f7b2866150d

[earnest spear]

Thanks for posting in #1088161997662724167.
Reminder: If you have a Convex Pro account, use the Convex Dashboard to file support tickets.

    - Provide context: What are you trying to achieve, what is the end-user interaction, what are you seeing? (full error message, command output, etc.)
    - Use [search.convex.dev](https://search.convex.dev) to search Docs, Stack, and Discord all at once.
    - Additionally, you can post your questions in the Convex Community's #1228095053885476985 channel to receive a response from AI.
    - Avoid tagging staff unless specifically instructed.

    Thank you!