chore: Make inspector use generics, rm associated types

[rakita]

Prep for integration

Make inspectors use generics over associated types. It is easier to integrate that way

[github-actions]

Valgrind Results:

==4754== Cachegrind, a high-precision tracing profiler
==4754== Copyright (C) 2002-2017, and GNU GPL'd, by Nicholas Nethercote et al.
==4754== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
==4754== Command: target/release/revme bench snailtracer
==4754== 
Running snailtracer example!
elapsed: 1.142217458s
==4754== 
==4754== I refs:        462,215,431

[codspeed-hq]

CodSpeed Performance Report

Merging #1934 will not alter performance

_{Comparing rakita/prep (741a864) with main (8dc2e2f)}

Summary

✅ 8 untouched benchmarks