fz v1.7.0 introduces

• Parallel builds: -j N flag (0 = auto = CPU cores) to compile multiple files concurrently.
• Linker script support: -T <file> and -Ttext <addr> passed to ld.
• Interactive shell: -shell provides a REPL with build, set, show, clean, watch commands.
• Extended output formats: elf32, elf64, bin (default elf64).
• C++ support: .cpp, .cc, .cxx files compiled with g++ and strict warnings.
• Project initialization: -init creates .fz.yaml, .fzignore, and README.md.
• Builder now uses a worker pool for parallel assembly respecting cache.
• CLI format validation fixed (elf32/elf64/bin instead of old elf/bin).
• All tests updated and passing.

Docs: https://forgezero-cli/forgezero