Documents why parseSlots skips repeat-key rejection, corrects two drifted doc
lines (naming-rule count, Malformed-after-header header validity), and records
two forward obligations for import_plan in CLAUDE.md.
An additively-tagged newer package that fails to parse now reports TooNew (with
writer semver) instead of unactionable Malformed. Format layer also refuses encoding
a zero-length entry, honoring the shell's appendPayload contract; both test-covered.
Reject NUL/control bytes and Windows-hostile names in entry names, relax
the over-broad ".." substring ban to component-only, close the
trailing-garbage gap on empty manifests, and relocate the package
CMake subdirectory to its ladder home.
Two-integer ladder (formatVersion/minReaderVersion), bare-name-only entries
validated on encode and decode, prefix decode that proves exact file size
without ever reading a payload.
daniel