fix(tools): switch session.prompt to promptAsync in delegate-task and call-omo-agent

src/tools/call-omo-agent/tools.ts

@@ -220,7 +220,7 @@ Original error: ${createResult.error}`
   log(`[call_omo_agent] Prompt text:`, args.prompt.substring(0, 100))
 
    try {
-     await ctx.client.session.promptAsync({
+     await (ctx.client.session as any).promptAsync({
        path: { id: sessionID },
        body: {
          agent: args.subagent_type,

src/tools/delegate-task/executor.ts

@@ -211,7 +211,7 @@ export async function executeSyncContinuation(
         : undefined
     }
 
-     await client.session.promptAsync({
+     await (client.session as any).promptAsync({
        path: { id: args.session_id! },
        body: {
          ...(resumeAgent !== undefined ? { agent: resumeAgent } : {}),