docs(cli): explain config overlay modes

docs/config-catalog.md

@@ -1133,7 +1133,7 @@ export type JournalMode = 'wal' | 'delete' | 'truncate' | 'persist'
 
 Depends on: [`SessionQueryConfig`](../packages/session-query/session-query/src/index.ts)
 
-Source: [`packages/session-query/session-query-sqlite/src/index.ts:76`](../packages/session-query/session-query-sqlite/src/index.ts)
+Source: [`packages/session-query/session-query-sqlite/src/index.ts:86`](../packages/session-query/session-query-sqlite/src/index.ts)
 
 ## `@deepseek-ai/dsh-session-reference`