v1.0.0

Fold edit into search as a hidden alias

`search`/`list` now resolves a full ULID or a query and is the single open
entry point: a single match opens directly, several open the picker, and
piped/`-n` prints the table without opening an editor. `edit` survives only as
a hidden alias.

A selector or listing that matches nothing now exits non-zero with the message
on stderr, so `search <x> && …` branches correctly. `delete` keeps the strict
"exactly one or fail" resolution.