add CLAUDE.md

bring in latest ansi to fix issue cropping wide runes

spelling pass; add AutoUnbuffered

upgrade ansi to latest

ansi moved to its own repo

don't escape quotes in message when using text printer

* strings as fields are still escaped
* this is technically a breaking change from previous behavior

add Path and PathAbs field helpers

fix for when 2 different anchors end up writing to the same line

add benchmarks

tests for min level changes

* added NoAnchorLogger, which is used by frog.AddAnchor to ensure that the number of nested Loggers is consistent, regardless of if you have a RootLogger that supports anchors or not.
* lots more README work
* removed the "buffered log closing" verbose line from Buffered's Close (but left it in as a comment, in case it is needed for future debugging
* renamed some of the demo apps for clarity