fix: close pattern directory after compileDir walk

Each fuzz iteration recompiles patterns; leaving the opened directory leaked fds until ProcessFdQuotaExceeded.

test: add file encoding mode to fuzz input

Encode Smith subjects as UTF-8 BOM or wide-endian files via flags bits 5–7 so libFuzzer can mutate encoding paths without random BOM bytes.

fix: close pattern directory after compileDir walk

Each fuzz iteration recompiles patterns; leaving the opened directory leaked fds until ProcessFdQuotaExceeded.

test: add file encoding mode to fuzz input

Encode Smith subjects as UTF-8 BOM or wide-endian files via flags bits 5–7 so libFuzzer can mutate encoding paths without random BOM bytes.

ci: bump GH actions to the latest major versions

ci: bump GH actions to the latest major versions

Revert "ci: temporary crutch in build script to generate correct chan…

…gelog on rewritten history"

This reverts commit 18c2546.

Revert "ci: temporary crutch in build script to generate correct chan…

…gelog on rewritten history"

This reverts commit 18c2546.

fix: potential configuration crash in debug build fixed

fix: potential configuration crash in debug build fixed