Add Superconscious ReasoningRun runtime-plan fixture

[mdheller]

Summary

Adds a deterministic no-activation Superconscious M1 runtime-plan fixture and validator to Agent Machine.

This PR includes:

• examples/superconscious-reasoning-runtime-plan.json
• scripts/validate-superconscious-runtime-plan.py
• validate-superconscious-runtime-plan Makefile target wired into make validate

Boundaries

• Agent Machine owns runtime planning and activation posture.
• Superconscious consumes runtime-plan decisions.
• M1 runtime plan is no-activation: no runtime start, no model load, no socket, no host state change, no network, no tool execution.
• Memory remains proposal-only and evidence remains local artifact directory posture.

Validation

Expected validation:

make validate
python3 scripts/validate-superconscious-runtime-plan.py

Advances #23.