Adoption of the Verifiable Substrate: Op Log + Content-Addressed Blobs + Bitemporal Triples + Merkle Commitments + JetStream Fabric, Replacing the NCL/Filesystem/Git Substrate

Ontoref's current substrate is plana: NCL files on disk (.ontology/, adrs/, reflection/) + git history + filesystem watching + Nushell automation + Rust crates loading NCL into typed structs. Verificat