Automatically adds Nix C library build inputs based on which nix-bindings
crates are dependencies, working around missing native input propagation
in nix-cargo-integration.
The workaround inspects the dreamLock to detect:
- If the crate being built is a nix-bindings crate (adds its own inputs)
- Direct dependencies on nix-bindings crates (adds their inputs)
The mapping is recursive via lazyAttrsOf, so depending on nix-bindings-flake
automatically brings in transitive C library dependencies.
Downstream consumers can extend the mapping for their own multi-crate
workspaces where crate A depends on crate B which depends on nix-bindings.
