[theworker02]

Summary

• Add a bounded, persistent mobility-learning memory that records fall and obstacle incidents, provides advisory context, and reports a readiness percentage without directly changing gait or commanding joints.
• Add a high-level neural affect selector for expressive behavior, plus new original signal, warble, and whistle sound cues with optional user-supplied signal overlays.
• Add a 45 cm MicroDuck 2.0 embodiment proposal, a parametric OpenSCAD reference model, preliminary BOM, and safety-oriented electronics integration plan.
• Document a MicroDuck 2.0 MuJoCo simulation profile contract for the companion training repository.

Scope and safety

This is a concept/proposal branch, not a hardware release. The design documents retain the upstream safety boundaries: learned data is advisory only, no autonomous gait mutation is enabled, and access-control or radio replay/emulation features are out of scope. CAD and BOM files require mechanical, electrical, and safety review before fabrication.

Validation

• cargo fmt --check
• git diff --check
• Companion simulator Python syntax and XML structural checks

The full robot daemon test suite remains Linux-only and was not run on the Windows development host. Companion microduck_rl simulator changes are deliberately kept in its separate repository.