- Replace panic() calls in seunlocker_stub.go with error returns,
following the existing keychainunlocker_stub.go pattern
- Fix hardcoded derivation index 0 in getLongTermKeyForSE: now reads
vault metadata to use the correct DerivationIndex (matching
getLongTermPrivateKey in keychainunlocker.go)
- Add tests for SE unlocker exports in secret package (both darwin
and non-darwin stub tests)
- Update README to reflect SE implementation: remove 'planned' labels,
update Apple Developer Program references, add secure-enclave to
unlocker type lists and examples
- Run go fmt on files with import ordering issues