docs: add cross-links to new memory-search page from reference docs

docs/reference/memory-config.md

@@ -11,8 +11,9 @@ read_when:
 # Memory configuration reference
 
 This page covers the full configuration surface for OpenClaw memory search. For
-the conceptual overview (file layout, memory tools, when to write memory, and the
-automatic flush), see [Memory](/concepts/memory).
+the conceptual overview, see [Memory](/concepts/memory). For how the search
+pipeline works (hybrid search, MMR, temporal decay), see
+[Memory Search](/concepts/memory-search).
 
 ## Memory search defaults
 

docs/reference/session-management-compaction.md

@@ -23,6 +23,8 @@ If you want a higher-level overview first, start with:
 
 - [/concepts/session](/concepts/session)
 - [/concepts/compaction](/concepts/compaction)
+- [/concepts/memory](/concepts/memory)
+- [/concepts/memory-search](/concepts/memory-search)
 - [/concepts/session-pruning](/concepts/session-pruning)
 - [/reference/transcript-hygiene](/reference/transcript-hygiene)