Module knowledge 

Knowledge graph domain types — entities (nodes) + temporal triples (edges). The structured-facts layer: “Who depends on Y?” “What did we decide about X?”

Import-compatible with the pi-mempalace entities + triples schema (see docs/HANDOFF.md §3). In the SurrealDB backend, entities are record nodes and triples are graph edges (RELATE ... ->triples->).

Structs

Entity

An entity — a node in the knowledge graph.

EntityId

Stable opaque identifier for an entity (node).

EntityRecord

An entity plus its connected triples (query result).

KgStats

Counts for the knowledge-graph stats endpoint.

Triple

A temporal triple: subject -predicate-> object with validity. The valid_to field expresses invalidation (None = still current).

Traits

KnowledgeGraph

The knowledge-graph contract every backend implements alongside crate::Store. All methods are scoped to a NamespaceId.