todo.normalise-tags
Clean up tags as typed: trim, drop the #, lower-case slug form, drop empties and duplicates, keep the order.
normalise_tags in RustTagged hashtag
3 capabilities
todo.parse-quick-add
Turn one typed line like "Pay rent tomorrow !high #home every month" into a todo draft.
parse_quick_add in Rust
todo.parse-tags
Read a tags box as typed, "#Home, work errands", into normalised tags: split on spaces and commas.
parse_tags in Rust