anthonyrawlins ec48447670 Add MEND module duplication operator ...

Implement the core MEND mechanism: a module duplication mutation that
copies a hidden node with all its incoming and outgoing connections.
This is the single addition MEND makes to standard NEAT.

- ModuleDuplication: JAX-compatible operator using jax.lax.scan
- CombinedMutation: composes DefaultMutation + ModuleDuplication
- DefaultGenome: accepts duplication_rate parameter
- Tests for standalone duplication, combined mutation, and rate=0 no-op

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-02-28 10:40:54 +11:00

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