v6.1.3

Fixed

• Write/exec MCP tools no longer advertise readOnlyHint: true (#94). tokensave_replace_symbol, tokensave_insert_at_symbol, and tokensave_run_affected_tests mutate source files or run a cargo test subprocess, but were annotated read-only — so harnesses that auto-approve read-only tools could edit files or compile and execute project code without prompting. They now correctly advertise readOnlyHint: false.

This release also exercises the new SignPath Authenticode signing for the Windows binary.