Replace std::rand() with std::mt19937 seeded by std::random_device for
less predictable cache eviction. Also use .first from emplace() instead
of structured binding with ignored second element.
- Add shared/canonicalize/ C++ DLL that resolves Windows paths via
GetFinalPathNameByHandleW with a full-path cache (matching C#'s
CanonicalPathCache strategy).
- Add JNI interface (canonicalize_jni.cpp) for Kotlin/Java consumers.
- Add NativeCanonicalizer.java to kotlin-extractor for loading the DLL
and exposing a resolve() method.
- Call NativeCanonicalizer.resolve() in FileUtil.tryMakeCanonical().
- Add go/extractor/canonicalize package (Windows + non-Windows impls).
- Use canonicalize.CanonicalizePath() in go extractor normalizedPath().
- Update Bazel build files for all new targets and deps.
