Enhance superpowers emulation with dynamic protocols and deterministic gates

[bnaylor]

Enhance superpowers-emulation to include dynamic evaluation and collaboration protocols:

• Include deterministic gate generation.
• Enhance multi-bot / multi-subagent review and collaboration protocol:
  • Implement an impartial pass/fail evaluator that compares against agreed start criteria to prevent goal drift.
  • Engage a re-evaluation loop when blockers and changes are discovered by the process.
  • Export this protocol to /shared/agents to make it common.