refactor: change add/remove debug flags to use enum type

[gab-dev-7]

Updated debug flag signatures to use the SwiftNetDebugFlags enum instead of a raw uint32_t.

• Updated swift_net.h and add_debug_flags.c signatures.

• Added necessary casts in the integration and perf tests to keep the compiler happy when ORing flags.

Testing: Built via ./build/build_for_testing.sh and ran integration tests under sudo. Everything passed with no leaks.

Fixes #164

[Morcules]

Hello. Thank you for contributing 🚀

This PR only requires changing the type in the debug functions to an enum, there's no need to change 500 LOC or rewrite the entire codebase style.

Please avoid submitting large AI generated slop for simple fixes.

Let me know if you can fix the pr. I will happily merge it.

[gab-dev-7]

Hey, i didn't use AI, just have my tab spacing smaller than yours. That's prob what it is. But I can do it again :)

[Morcules]

I mean I can see that you’ve changed even things like tests (new lines inside function agrs, pointer positions), etc.

I would really appreciate it if you did it again, but please don’t create PRs made by AI. It takes a lot of time to respond, correct issues, etc.

[Morcules]

I can see that it’s AI again. I won’t merge 300 LOC for a thing that requires 5 LOC.

Please contribute to projects that you really understand and don’t just prompt the issue description.

Open source isn’t about creating a pr that takes 5 minutes, adding it to your resume.

AI isn’t as magical as you might think. I don’t need it to change the style of my code base. I don’t need extra comments. I don’t need tabs to be 2 in one file and 4 in another file.