docs/FORMAT.md now says a .mf is always a whole file, readers ignore
fields they do not know, and paths are compared byte for byte with no
Unicode normalization. Deterministic Serialization describes what the
writer does: entry order, protobuf encoding, zstd settings and how the
UUID is chosen, and no longer claims two runs give the same bytes
without --seed. A signed test vector made once by the code, with a key
used for nothing else, is checked in as mfer/testdata/test-vector.mf,
shown in the document, and loaded and verified by TestFormatTestVector.
Model: opus-5-5
go.mod specified go 1.17 but protobuf generated code (mf.pb.go) uses
go1.18+ features (any) and go1.20+ features (unsafe.StringData).
Updated to go 1.22 and ran go mod tidy.
clawbot