fix(cloud-task): resume terminal cloud runs with the selected question answer

[tatoalo]

Problem

Answering a question on a completed cloud run went nowhere. When a cloud run terminalizes with an unanswered AskUserQuestion, its log carries a _posthog/permission_request with no resolution, so the desktop recovers and renders the question card.
Follow-up to #3199, which made questions on cloud runs relay and park instead of auto-resolving — this completes the loop so the user's late answer actually reaches the agent.

Changes

• respondToPermission in sessionService now branches on terminal cloud runs: instead of proxying a permission_response, it formats the selected answer and routes it through sendCloudPrompt
• New pure helper formatPermissionAnswerPrompt builds the resume prompt: each question quoted above its answer, with fallbacks for free-text input and bare option picks. Plain approvals return null — approving a tool call that no longer exists shouldn't spin a run — so those responses are dropped with a log line.
• cancelPermission on a terminal cloud run resolves the card locally without proxying a command that can't succeed.

[trunk-io]

😎 Merged manually by @tatoalo - details.

[github-actions]

React Doctor found no issues in the changed files. 🎉

_{Reviewed by React Doctor for commit d882085.}

[greptile-apps]

_{Reviews (1): Last reviewed commit: "fix(cloud-task): resume a terminal cloud..." | Re-trigger Greptile}

[stamphog]

The PR exceeds the size gate ceiling (712 lines vs 500L limit), requiring human review. The logic itself looks sound — focused fix for terminal cloud run permission handling with good test coverage — but this threshold requires a human sign-off before auto-approval can proceed.

[greptile-apps]

_{Reviews (2): Last reviewed commit: "fix(cloud-task): resume a terminal cloud..." | Re-trigger Greptile}