fix(tools/delegate-task): replace as any with Record type cast

Cast session body to Record<string, unknown> instead of as any

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/tools/delegate-task/sync-session-creator.ts

@@ -13,7 +13,7 @@ export async function createSyncSession(
     body: {
       parentID: input.parentSessionID,
       title: `${input.description} (@${input.agentToUse} subagent)`,
-    } as any,
+    } as Record<string, unknown>,
     query: {
       directory: parentDirectory,
     },