Of the places pixa looks for its config file on its own, it passed over
any place where os.Stat failed, so a file in a directory pixa may not
enter was skipped without a word and pixa started on a later file or on
the environment and defaults. Now only a file that does not exist is
passed over; any other error aborts startup naming the file, as a file
that does not parse already did. README.md says so where it gives the
search order.
Model: opus-5-5
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