Reopens a qualification application to allow editing of applicant information.

Business Context:
Use this endpoint when you need to modify application details after submission,
such as correcting customer information or updating product selections.

Valid Source Statuses:

• submitted: Application was submitted but not yet qualified
• approved: Qualified application that needs modifications
• declined: Declined application with correctable issues

Status Transition:
submitted/approved/declined → open

After Reopening:

• Application status becomes open
• All fields become editable again
• Previous qualification results are cleared
• Application must be resubmitted before running qualification again

Common Use Cases:

• Correcting customer address or contact information
• Adding or removing a co-applicant
• Updating product type or agreement terms
• Fixing data entry errors discovered after submission

Important Notes:

• Reopening clears previous credit qualification results
• Customer will need to be re-qualified after resubmission
• Any ACH authorization remains valid and doesn't need to be redone