As a starting point, you may want to look at https://github.com/jgraph/drawio , as it seems to cover much of what you intend. The usable site is https://app.diagrams.net/.
What other technology frameworks can be used?
The backend could be almost anything. Pretty ...
Xojo is a development environment that includes a visual forms editor, its own object-oriented programming language, and native compilers to build apps for macOS, Windows, and Linux.
The product and company has been around for many years, always improving.