Dispatch panel doesn't render results despite successful completion

Description

When using the Desktop dispatch feature, tasks complete successfully on the backend but the dispatch panel in the desktop app fails to render the results. The results are visible in the sidebar conversation, but the dispatch window either stays in a spinning state or stops without showing output.

Steps to Reproduce

1. Open Claude desktop app
2. Send a task via the dispatch feature (e.g., from claude.ai)
3. Wait for the task to complete
4. Observe the dispatch panel — no results rendered

Expected Behavior

Dispatch panel should display the task results when the session completes.

Actual Behavior

• Dispatch panel spins for ~1 minute then stops, showing no output
• The task result IS visible in the sidebar conversation
• Backend logs confirm successful completion (isError=false, "Turn succeeded", "Query completed")

Logs

Backend shows successful completion:

[Result] Turn succeeded for session local_f4e92894-...
[Lifecycle] Session local_f4e92894-...: running → idle
[Result] Turn succeeded for session local_ditto_77274cf7-...
[sessions-bridge] Query completed for session cse_01T87zs5uCzXi9kiVUnDGV4y (pendingTurns=0, isError=false)
[Lifecycle] Session local_ditto_77274cf7-...: running → idle
[sessions-bridge] Session cse_01T87zs5uCzXi9kiVUnDGV4y turn completed, keeping transport open for follow-ups

Web log shows recurring renderer errors:

[REACT_QUERY_CLIENT] QueryClient error: Error: Not found
Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'includes')

Environment

• Claude desktop app v1.1.9310
• macOS Darwin 25.3.0 (Apple Silicon)
• Pi-hole DNS confirmed not blocking any Anthropic/Claude domains
• Network connectivity to api.anthropic.com verified healthy (~20ms latency)
• Clearing app cache (Cache, GPUCache, Code Cache) did not resolve the rendering issue