chat: include .^ paths in its eval failure case
Also updates the top-level message to avoid problematic terminology.
(mock [subject nock.p.minted] |=(^ ~))
?- -.toon
%0 [(sell type.p.minted p.toon) ~]
- %1 [leaf+"scries unsupported in chat eval" ~]
+ %1 :- leaf+".^ unsupported in chat eval"
+ (turn ;;((list path) p.toon) smyt)
%2 [leaf+"crash!" p.toon]
==
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