Kevin...

EMS Sql Manager has a great list of tools for Firebird and Interbase that will provide the very processes you are looking for...  https://www.sqlmanager.net

Granted these are commercial products but I have been using them for years and have found them to be quite reliable with decent technical support as well.

However, if you are interested in developing such a tool, maybe we could collaborate.  I work with the Microsoft development products and primarily develop for the desktop in VB.NET but I am fluent in C#.  I haven't done any web development in years and prefer to stay away from it given the complete mess such development has become...

With regards,

   Steve Naidamast

   Sr. Software Engineer