Fixed potential panic in ErrorReportRequest.zig where generated_mappings[1]
was accessed without proper bounds checking. The condition checked if
len <= 1 OR accessed index 1, which could panic when len = 0.
Changed to: len <= 1 OR (len > 1 AND condition with index 1)
This prevents panic when compact sourcemaps return empty generated() arrays.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
