chat-store: remove redundant tiscom
++ letter
|= =^letter
^- json
- =, enjs:format
?- -.letter
%text
(frond %text s+text.letter)
++ config
|= =^config
^- json
- =, enjs:format
%- pairs
:~ [%length (numb length.config)]
[%read (numb read.config)]
