Captures the design language (CONTEXT.md) and the framing decisions from the
requirements interview: pursue hybrid embeddings+concept-graph retrieval gated
on a benchmark (0001), target the API/Postgres deployment while SQLite stays
lexical (0002), and permit hosted embedding APIs for non-sensitive memories
only (0003). Groundwork for the research/prototype/benchmark effort.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>