Release v5.0.8

Bug Fixes

• Prevent mmap exhaustion crashes when scanning repositories with more files than (default 131 072 on Linux). The walker previously held a live per discovered file; each rayon worker now opens and drops its mapping within the processing closure, capping concurrent mappings to the thread-pool size (typically 8–32). Fixes #813
• Fix not matching relative paths when the scan root is absolute (e.g. CWD). Patterns like now match correctly by comparing against both the relative path and the full absolute path, and bare patterns like gain a prefix to match at any depth. Fixes #811