docs: add local build prerequisites

[bherila]

Summary

• expand contributor prerequisites for native Rust, OpenSSL, protobuf, rustfmt, wasm, and wasm-pack tooling
• add validated Amazon Linux 2023 prerequisite commands
• add a source-build prerequisite note to the installation docs

Validation

• git diff --check

[dviejokfs]

Thanks for the PR! Why is it draft?

[bherila]

I was double checking that it's complete, not AI slop :)