List whatever occupation is “primary” for you. If you are no longer a Registered Nurse and Bid Manager is what you do primarily now, then list the...

You’ll need the H1b supporting documents to enable you obtain an H4 visa.

The I-130 is a family petition. The I-797 is a Notice of Action from USCIS, typically about a petition you’ve filed with USCIS.

It’s advisable to have an attorney review the form and documents you submitted. Seems the NVC has deemed it insufficient and recommends a joint...

Your passport with the stamped visa is sufficient

I agree with the previous answers. You were detained, not arrested.

Yes an H1b visa holder can work remotely.

I wouldn’t just send a screenshot. That may result in a denial. Best to retain an attorney to assist you.

Yes, s/he may work remotely until the visa is approved.

I don't see the connection to immigration law. Consider a private consultation with an experienced criminal defense attorney.