v0.1.248

0.1.248 (2026-04-21)

• feat(memory): HybridRetriever + progressive enhancement flags ship as v0.1.248 (5657f31)
• memory: barrel exports + CognitiveMemoryManager.getRerankerService getter (e6ac741)
• memory: barrel-export SessionSummaryStore + SessionRetriever; fix PADState import (a563cf0)
• memory: FactSupersession post-retrieval LLM filter (drops superseded traces) (30ae52a)
• memory: HybridRetriever for BM25 + dense RRF retrieval (b32099d)
• memory: HybridRetriever integration tests with real MemoryStore + BM25Index (d44001a)
• memory: HybridRetriever split-on-ambiguous rerank refinement (monotonic, additive) (c2c0a52)
• memory: optional HyDE retriever in HybridRetriever (hypothesis for dense+sparse, original query for (3781d75)
• memory: reciprocalRankFusion for rank-based fusion of retrievers (9c4a6f4)
• memory: restore SessionSummarizer + tests (tracked file missing from prior push — unblocks CI) (1472981)
• memory: SessionRetriever for two-stage hierarchical retrieval (b6aa1ef)
• memory: SessionRetriever integration tests with real in-memory components (c9374e2)
• memory: SessionSummaryStore for session-level vector indexing (aecfc85)
• memory(test): fix typecheck — test stubs cast as interface at usage sites, PADState from core/config (732d475)
• docs(memory): architecture doc for SessionRetriever (a41c4f9)
• docs(memory): HybridRetriever architecture doc (38f1d5f)