Create Update Route for Business Details

Develop an API route that allows users to update business details in the database. This will enable authorized users to modify existing business information as needed.

No files or tests are named in the issue. Start by locating existing business-details routes, authorization checks, and database update handlers, then follow their patterns. Done means an authorized user can update existing business information through the new route and the behavior is covered by the project's applicable tests.

Written by the indexing model from the issue text.