docs: refresh subagent config source link

docs/config-catalog.md

@@ -3012,7 +3012,7 @@ export interface Config {
 
 Depends on: [`AgentOptions`](subsystems/core.md)
 
-Source: [`packages/subagent/tool-subagent/src/index.ts:48`](../packages/subagent/tool-subagent/src/index.ts)
+Source: [`packages/subagent/tool-subagent/src/index.ts:46`](../packages/subagent/tool-subagent/src/index.ts)
 
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