- ProjectProvenance namespace/dylib_sha256 widen to Option (Tier-1
additive serde): a data-only run stamps commit-only provenance; old
string-field manifests keep parsing.
- The load boundary tier-selects: a [nodes] pointer list in Aura.toml
(one entry honored; MultiCrate / pointer-context refusals) loads the
pointed-at crate; a root Cargo.toml stays the pre-#241 native project,
unchanged; neither means data-only (std vocabulary, project-local
runs/, both-tier provenance).
- ProjectEnv splits into directory facts + Option<NativeEnv>; the crate
pipeline (metadata -> artifact -> staleness -> ABI -> charter)
relocates byte-identical into load_crate.
- e2e fixtures: dataonly-project, multicrate-project,
nested-nodes-project (a pointer crate resolves and stamps its
namespace end to end).
refs #241
