Commit Graph
4 Commits
Author SHA1 Message Date
Aska 8495a4b055 feat(memory): hybrid vector search via embedder
- repository: optional pgvector embedding column (migration with
  CREATE EXTENSION guarded by main), SearchByVector cosine search,
  vector-enabled insert path
- service: SetEmbedder — memories are embedded on Add; Search merges
  vector hits with n-gram keyword matches (vector first, deduped)
- embedder was already implemented (OpenAI-compatible API + n-gram FNV
  fallback) but never instantiated; main now wires it from
  EMBEDDING_API_URL/EMBEDDING_MODEL config
2026-08-20 20:57:13 +08:00
Aska 886fcf2216 fix(memory): rewrite dedup with n-gram keyword overlap + embedder
- Keyword extraction: 2-3 char sliding window + segment splitting
- Dedup: keyword overlap (>25%) OR Jaccard (>0.4) triggers merge
- SearchByNGrams: pgvector GIN index on keywords array
- Embedder: n-gram FNV hash (zero dep), OpenAI API with auto-fallback
- GIN index on keywords column for fast overlap search
- All tests pass
2026-08-12 18:24:04 +08:00
Aska 81ebdb910c feat(memory): complete memory service with passing tests
- model: Memory struct with categories/decay/keywords
- repository: PG CRUD + keyword search + table migration SQL
- service: dedup (Jaccard), keyword extraction, decay formula
- 7 tests (3 DB integration + 4 unit), 96 total, vet clean
2026-08-09 20:51:01 +08:00
Aska 7295556c59 feat(services): add memory service — model, repository, service layer
- services/memory/model: Memory struct with categories and decay
- services/memory/repository: PostgreSQL CRUD + keyword search
- services/memory/service: dedup, decay, keyword extraction
- tests coming in follow-up commit
2026-08-09 20:50:01 +08:00