Own ELF machine and canonical family in the fixed-header parser. Fuse inspection consumes validated ELF facts and complete COFF machine values while retaining null for unknown or incomplete headers. Binary target, MIPS and Go consumers reuse the parsed facts.
Adapt public CLI controls and fixture builders from #4788; extend x86, ELF byte order, malformed and unknown headers, MCP projection and byte preservation coverage. 430 focused tests passed, one Windows-only skip. Five authored inert fixtures have full actual CLI/stdio MCP Evidence parity; real Linux/Windows Electron apps remain unverified.
Fixes#4786
Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>