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Implement the RSYNC_COMPAT Phase-2 filter/parser feature group: - --files-from=FILE (repeatable) plus -0/--from0 NUL delimiters: parse the source file list relative to the source root into a shared read-only allow-set; the scanner transfers listed files and the whole subtree of listed directories and prunes everything else in single- and multithreaded mode. Absolute/'..' entries and missing files are hard CLI errors. - --filter=RULE: rsync-style +/- rules (anchored '/', dir-only trailing '/', word include/exclude forms) evaluated first-match-wins with a default of include, as an independent layer from legacy --exclude/--include. Unsupported directives (merge/hide/... ) are rejected explicitly. -f stays sendfile. - -C/--cvs-exclude: well-known rsync CVS default exclude set. - -F: per-directory .rsync-filter files read during traversal and applied to the owning directory's subtree (single + parallel), never transferred. - Delete manifest still derives from what was actually sent. Client-only config fields; no wire/protocol change. Adds unit coverage (CLI parse, allow-set and filter scanning single+parallel) and integration tests (TestFilesFrom, TestFilters). RSYNC_COMPAT matrix rows updated: 5 rows move to Implemented (Summary 62/3/5/1/76 = 147).