checkMapping takes kind absent, hybrid or draft. A draft has a name and one
or more prefixes and no books, and comes back with books []. A prefix inside
or holding another entry's book refuses library-playground-other-universe,
which replaces library-playground-outside-book. A prefix equal to a book or
holding its own refuses library-mapping-invalid, as does a draft source.
classify returns a playground file's entry and the book holding its prefix,
or null at universe level and in a draft.
Lands Gosalyn's round 3 candidate, a2c72ac95 (commit candidate, base c771a36f4), approved by Webby
(29979, rev 2731). 21 paths: the new packages/library (src, tests, fixtures, package.json, README),
scripts/stack-copy.sh (packages/library/src in COPY_PATHS), packages/cli/tests/stack-copy.test.mjs,
scripts/mosaic and agents/gosalyn/work/queue-212/BUILD.md. The 21-path patch-id, ea84d3e35470, equals
the candidate's.
Evidence: Gosalyn's slot run on round 3: 20 files 451 pass, 0 fail; test-queue 28/0 (gosalyn-0086).
Landing gate (Sage, 08:51-09:03Z, base 4ced5e63d) on a tree that also held row 197's 32 paths:
GATE_PASSED, node tests 981 pass 0 fail (library 39, cli 681, control-board 38, harness 16, webui 51, plus
the scripts/test-*.sh node suites), selftests 429 passed 0 failed. Row 212 lands alone (mos-1162); row
197 waits for an r6 after its lane proof stopped. No 212 path changed between c771a36f4 and this commit's
parent.
`queue review verify-commit 212` -> ok row 212 round 3: a2c72ac95 matches the commit candidate (21 paths).
jason.woltje