kimetsu-brain 2.5.0

Project + user-scope memory, hybrid retrieval (lexical + cosine), ambient context, secret redaction at ingest for kimetsu.
Documentation
pub mod ambient;
pub mod analytics;
#[cfg(feature = "embeddings")]
pub mod ann;
/// S5.1: retrieval backend trait + FlatBackend implementation.
pub(crate) mod backend;
/// S5.4: cross-backend benchmark harness (flat / graph-lite / petgraph).
pub mod backend_bench;
pub mod benchmark;
pub mod conflict;
pub mod consolidate;
pub mod context;
/// Flagship 1 / Pass B / Story 1.1+1.2+1.6: repo digest builder + cache + ROI.
pub mod digest;
pub mod dropped_capsule;
pub mod embeddings;
/// Flagship 1 / Story 1.3: episodic work-resume capture, storage, and surface.
pub mod episode;
pub mod eval;
/// #2 knowledge graph: rule-based relation-edge extraction for `memory_edges`.
pub mod graph;
pub mod ingest;
/// F3 Flagship 3: Lifecycle & forgetting — Stories 3.1–3.4.
pub mod lifecycle;
pub mod lock;
pub mod migrate;
pub mod project;
pub mod projector;
pub mod redact;
pub mod reindex;
pub mod roi;
pub mod schema;
pub mod skill_synthesis;
/// Epic S3: personal brain sync — event-log replication.
pub mod sync;
pub mod trace;
pub mod tune;
pub mod tuneset;
pub mod user_brain;