Exclude global PAX headers from buffered and streaming TAR entries. This restores common-root detection for Git-generated archives, fixes normalized file paths and comparisons, and prevents unreadable metadata files from being extracted.

Preserve regular files named pax_global_header. Add regression coverage for compressed TAR, gem, and conda archives, disk extraction, browsing, and stream entry limits.

Includes dependency updates merged since v0.10.0: git-pkgs/magic v0.6.0 and klauspost/compress v1.20.3.