[P1][OCR] Stop auto-runner loops after abort and guard invalid round cursors

[Ryder-Sun]

Source: OCR_ANALYSIS_REPORT.md, OpenCode Review report generated on 2026-08-12.

Findings: M-3, M-4. desktop/src/workspace/local-workspace-auto-runner.cjs can continue loop work after circuit breaker or hard budget aborts, and firstRound can become NaN when controller.currentRound is undefined. Either case can cause confusing terminal behavior or a silent failure path.

Expected fix:

• Break immediately after circuit breaker or hard budget abort.
• Normalize controller.currentRound before deriving firstRound.
• Add focused tests for abort-loop termination and undefined current round recovery.