refactor network stack, optimize performance, and add graceful shutdown

[vMohammad24]

General:

added nix flake (dev env)
optimized release profile
updated dependencies
implemented graceful shutdown

CLI

replaced reqwest (blocking) with ureq (reqwest is "fake" blocking aka it creates a tokio thread in the background, ureq is light-weight and actual blocking)

lib

refactored DetectableActivityto use Arc (preventing useless clones)
optimized aho-corasick pattern matching
reduced Mutex locks
added logic to detect stale sockets and prune them
removed sysinfo from linux builds

refactors

ipc: improved unix socket handling for automatic cleanups
logging: used an atomic bool to prevent overhead (reading env var on every func call)
cleaned up useless allocations in url_params, simplified ipc packet

performance/conclusion

memory: went from idling 150MB to 60MB
binary size: went from 5.1mb to 3mb

[SpikeHD]

Nice! Do you mind splitting this into separate PRs though? It's much easier to review stuff in isolation that way.

[vMohammad24]

i tried my best splitting them into 8 commits that you could review individually, if that's no hassle.

this PR didn't have much of a goal other than general optimizations so I didn't think of splitting it into multiple PRs (especially since most of the newer commits depend on the older ones).

although let me know if you still need me to split them (cant do them very soon tho cuz i have exams)

[SpikeHD]

Oh actually yea that's good enough, ty, I only originally looked at the changes tab

[SpikeHD]

LGTM! Just curious about the nix-related stuff

[SpikeHD]

idk anything abt nix (nor do I use it), do I need to do any maintenance/keep flake.lock up-to-date or anything?

[vMohammad24]

this is just a dev env (users cant install with it (i can add that if you'd like)) but no it does not require any maintenance

[vMohammad24]

i can also remove it if you'd like

[SpikeHD]

ok perfect, its totally fine to keep i just dont know anything about nix 🤪

[SpikeHD]

Idk if the clippy errors are related to your changes but if they are could you pls fix them? If not I'll get to them eventually ™️

[vMohammad24]

yeah sorry they were from the last commit, fixed them.

[SpikeHD]

thanks!