The initial lib.rs re-exported the whole policy limit surface even
though nothing outside the library used most of it. Every unused
export is semver surface for free: tightening MAX_ARGON_PASSES or
removing architecture_argon_cap_mib later would be a breaking change
for constants nobody asked for.
Drop the re-exports with zero uses in main.rs and the tests:
- policy: DEFAULT_ARGON_DECRYPT_CAP_MIB, MIN_ARGON_MEMORY_MIB,
MAX_ARGON_PASSES, MAX_ARGON_PARALLELISM, MAX_CHUNK_SIZE,
MIN_PASSPHRASE_BYTES, architecture_argon_cap_mib
- secrets: MAX_PASSPHRASE_LEN
All of them stay pub inside their (private) modules because the
validation functions use them internally; they can be re-exported
deliberately if a downstream user ever needs to introspect the limits.
ArgonDecryptCap stays exported because it is the return type of the
exported resolve_argon_decrypt_cap. The header format exports
(Header, AlgId, flags, lengths) are kept as the blessed container
format API.
Breaking change for any out-of-tree user of the just-introduced lib
API, but the library has not shipped in a release yet.
Test plan: cargo clippy (default/--tests) clean; cargo test passes
all suites.
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