Add timeout support for JavaScript evaluation - #4
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Add optional timeout parameter to eval/2 and eval/3 that interrupts
long-running JavaScript code. Uses QuickJS interrupt handler with
monotonic clock to detect when deadline is exceeded.
- Add deadline_ms field to JsContext struct
- Implement interrupt handler that checks deadline on each tick
- Update nif_eval to accept timeout_ms parameter (0 = no timeout)
- Update nif_run for callbacks with timeout support
- Return {:error, :timeout} when execution exceeds deadline
- Ensure deadline resets between calls for context reuse
🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Add optional timeout parameter to eval/2 and eval/3 that interrupts long-running JavaScript code.