Prevent hanging processes from preventing container cleanup

[cte]

Description

Encountered by both @mrubens and @hannesrudolph.

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Important

Adds subprocess timeout handling in runTask.ts to prevent hanging processes and ensure container cleanup.

• Error Handling:
  • Introduces SubprocessTimeoutError class in runTask.ts to handle subprocess timeouts.
• Subprocess Management:
  • Modifies runTask function in runTask.ts to wait for subprocess completion with a 10-second timeout.
  • If subprocess exceeds timeout, logs error and attempts to kill subprocess with SIGKILL.
• Client Disconnection:
  • Logs error if client disconnects before task completion in runTask.ts.

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