memory_search returns empty results despite indexed chunks

Environment

• OpenClaw: 2026.1.29 (a5b4d22)
• OS: macOS (Darwin arm64)
• Provider: gemini
• Model: gemini-embedding-001

Status

Indexed: 10/10 files · 12 chunks
Vector: ready
Vector dims: 3072
FTS: ready

Issue

• memory_search tool returns empty results for any query
• FTS (sqlite3 CLI) works correctly with same data
• Database has chunks with embeddings stored

Reproduction

1. Configure memorySearch with gemini provider
2. Run openclaw memory index
3. Verify status shows indexed files
4. Call memory_search("any query") → returns empty results

Expected

Results from indexed chunks matching the query

Workaround

Direct FTS query via sqlite3 works