Run .github/scripts/rename/docs.sh to replace rippled → xrpld
references in all plan documentation files, fixing the check-rename
CI failure.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Split document index into Plan Documents and Task Lists sections.
These files were introduced in this branch but missing from the index.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>