fix: queue loading Cancel button and launch abort (OPEN-10)

[zortos293]

Description

Fixes the queue/setup Cancel flow in handlePlayGame to avoid showing a false launch failure after an intentional cancel.

Cause: if cancel stops the server-side session while pollSession is in-flight, pollSession can throw. That exception reached the outer catch path, which unconditionally set launch error state and displayed "Launch Failed".

Changes:

• Keep existing abort checks around polling loop returns.
• Add an abort-aware early return at the top of handlePlayGame's catch block (if (launchAbortRef.current) return;).
• Preserve existing error handling for genuine launch failures.

Linear Issue: OPEN-10

  

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Catch block ignores abort flag, shows spurious error

Medium Severity

The catch block in handlePlayGame doesn't check launchAbortRef.current. When the user cancels during loading, handleStopStream stops the session server-side. If pollSession was already in-flight, the server may return an error for the now-stopped session, causing pollSession to throw. That exception bypasses the abort-aware return statements in the polling loop and falls into the catch block, which calls setLaunchError(...) and resetLaunchRuntime({ keepLaunchError: true }), showing a "Launch Failed" error to a user who intentionally clicked Cancel.

Additional Locations (1)

• opennow-stable/src/renderer/src/App.tsx#L1678-L1695