feat: Empirical economics + FunctionGemma State Interaction Layer

Lifeforce-Dynamics v1.2:
- Cost Calibration principle: "Measure, don't design"
- Empirical cost formula from resource observations
- Phoebe schema for resource_observations table
- Interlink to memory-economics

memory-economics.md:
- Cross-reference to Lifeforce-Dynamics cost calibration
- "The cost matrix is a measurement, not a decision"

Initial-Spark v3.1:
- Spark Cost Measurement: first awakening as baseline
- Resource instrumentation schema (power, GPU, memory, latency)
- FunctionGemma Fine-Tuning section: translator learns nimmerverse
- Training data extraction from spark_handshakes
- Unsloth/LoRA workflow for domain specialization
- FunctionGemma version tracking in phoebe

Nervous-System v1.4:
- State Interaction Layer: FunctionGemma as neural interface
- Phase 1 (single) → Phase 2 (swarm) evolution path
- CPU-only translators, GPU reserved for cognition
- Design principle #6: "All state interaction flows through FunctionGemma"

Philosophy: "Don't assign costs like a game designer. Measure them like a scientist."

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

architecture/formalization/memory-economics.md

@@ -291,6 +291,12 @@ dLifeforce/dt = organism_trickle
 ## Implementation Priority
 
 ### Phase 1: Measure First
+
+> *"The cost matrix is a measurement, not a decision."*
+> — [[Lifeforce-Dynamics]] v1.2
+
+This principle applies throughout the nimmerverse economy — not just memory, but all lifeforce costs. See [[Lifeforce-Dynamics#Cost Calibration: Measure, Don't Design]] for the full formulation.
+
 - Track decision_trails accumulation rate
 - Track spatial embedding growth
 - Track reflex creation rate
@@ -329,6 +335,7 @@ Everything else fades. This is not loss. This is health.
 ---
 
 **Created**: 2026-01-02
+**Updated**: 2026-02-10
 **Status**: Core design principle
 **Next**: Implement measurement (Phase 1) during first boot