Previous || chain could pass through invalid values causing NaN.
Now explicitly checks each possible timestamp field with:
- null check (field != null)
- NaN check (!isNaN(parseFloat(field)))
- Takes first valid numeric value found
This ensures timestamps always have a valid number, defaulting
to 0 if no valid timestamp field is found.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
knight
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