ISS-018: FanucProgram.Standardize() prepends a leading '\n' to the
program body, so the O#### header is not on lines[0]. The validator
first-line check read lines[0] and always failed "First line must be
O####", rejecting every valid Fanuc/Mitsubishi upload. Scan the first
non-blank line instead. Upload (FOCAS tape) format unchanged.
ISS-019: field-test .bat files passed -pathprogramma unquoted; on
install paths with spaces ("visual studio prove") cmd split the arg and
ArgParser captured only the first token -> truncated path. Quote the
arg in all 7 scripts.
Add regression test Validate_LeadingBlankLineBeforeONumber for both
Fanuc and Mitsubishi.
Surfaced by field testing against a local docker FTP server.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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