GHSA-H5VH-M7FG-W5H6 SiYuan globalCopyFiles: incomplete sensitive path blocklist allows reading /proc and Docker secrets

Summary POST /api/file/globalCopyFiles reads source files using filepath.Abs with no workspace boundary check, relying solely on util.IsSensitivePath whose blocklist omits /proc/, /run/secrets/, and home directory dotfiles. An admin can copy /proc/1/environ or Docker secrets into the workspace an...