f4f6fed8

By: Michael Lynch <git@mtlynch.io>

Move JSON parsers to tinybeans/parse subpackage to slim public API

ParseJournal, ParseEntry, and ParseFollowers were only exported so
tinybeans_test could reach them. Moving them to a parse subpackage lets
parse_test test them directly while keeping the tinybeans public surface
to just Parse(fs.FS) and the domain types.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
configuredevShellbackendbackend-devcheck-bashcheck-frontendcheck-go-formattingcheck-trailing-newlinecheck-trailing-whitespacediagramdocker-imagee2e-testsgo-testslint-sqllittle-momentslittle-moments-devx86_64-linux