bra0-kg — Knowledge Graph Core

NextGraph-First architecture:

• Transformations (always available): parse, serialize, C14N, isomorphism, OWL extraction
• KgStore trait: abstracts persistence (NextGraph CRDT primary, oxigraph standalone fallback)

Compilation targets:

• wasm32-unknown-unknown (primary — browser, NextGraph iframe)
• native (secondary — Tauri standalone, topo CLI)

Built on sophia 0.9.0 (Champin, W3C/INRIA).