* feat: add Tap, Transpose, Unzip, ParallelReduce, and Replicate
- Add Tap: for side effects/debugging in pipelines
- Add Transpose: flip matrix rows and columns
- Add Unzip: split tuple slice into two slices
- Add ParallelReduce: parallel reduction (experimental)
- Add Replicate: create n copies of a value
Comprehensive tests included for all functions.
Resolves Issues 21, 22, 23, 24, 25
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* test: improve ParallelReduce test coverage to 97.5%
Add comprehensive tests covering:
- Default workers (workers <= 0)
- Negative workers
- Error handling and propagation
- Context cancellation during execution
- Context timeout
- Single element processing
- Many workers (more workers than elements)
- Benchmark for performance validation
Coverage increased from 68.75% to 97.5%
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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Co-authored-by: Claude <noreply@anthropic.com>
