Root causes fixed:
1. ExpandFromResults accessed p["to"] but SQLiteGraphStore.Navigate
returns {"source","target","relation","weight"} - field name mismatch
caused graph expansion to always return empty
2. Original logic checked seen[r.ID] (memory ID) against entity name
(neighbor string), which never matched - removed stale logic
Also improved extractPotentialEntities:
- Now handles Chinese continuous character sequences (2-8 chars)
- Chinese entities extracted as whole words, not split by spaces
- English capitalized words preserved with original casing
Changes:
- ExpandFromResults: correct field access (source/target/relation),
bidirectional neighbor detection (forward + reverse edges),
separate seenEntities map for entity dedup
- extractPotentialEntities: full rewrite for Chinese + better English
word tokenization without space-based splitting
xiaowei
31712986de