## Summary
- Adds stricter validation for chunk boundaries in the HTTP chunked
transfer encoding parser
- Ensures conformance with RFC 9112 requirements for chunk formatting
- Adds additional test coverage for chunked encoding edge cases
## Test plan
- Added new tests in `test/js/bun/http/request-smuggling.test.ts`
- All existing HTTP tests pass
- `bun bd test test/js/bun/http/request-smuggling.test.ts` passes
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Bot <claude-bot@bun.sh>
Co-authored-by: Claude <noreply@anthropic.com>
### What does this PR do?
### How did you verify your code works?
---------
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
