PR #1690 — resolve specialist type skills

The Broader Goal at the End of the Previous PR

Advancing the multi-agent operating system toward reliable, autonomous development, unblocking workgroup velocity and eliminating manual developer toil.

Strategic Shifts in This PR

Focused, limited-treatment delta resolving PR #1690 requirements with strict backward compatibility and comprehensive verification.

What This PR Shipped

• Merged improvements and fixes for PR #1690.

Verification & Test Evidence

• pytest -q tests/test_policy.py tests/test_types_registry.py tests/test_wave4_runtime_surfaces.py tests/test_wave6.py tests/test_workspace_add_repo.py
• 33 passed

What This Achieved on the Path to Autonomy

Maintains repository integrity, expands test-proven capabilities, and keeps the hybrid human-agent workgroup aligned with zero drift.