feat: Architecture expansion - organisms, swarm evolution, memory gradient, infrastructure

New sections created:
- organisms/ - Modular robot design (CAN bus + magnetic pogo connectors)
- infrastructure/ - Kallax Grid World (40×40×40cm standardized cells)

Core documents added:
- Swarm-Evolution.md - Ternary clasp rules, escalation ladder (L0-L5), Mount Olympus council
- Modular-Organism-Design.md - ESP32 modules, universal connector spec, Phase 0 BOM
- Memory-Gradient.md - Metacognitive routing (renamed from RAG-as-Scaffold.md)
- Kallax-Grid-World.md - Sim-to-real substrate, "schrotti cyberpunk" aesthetic

Enhanced:
- Nimmerswarm-Interface.md - Dual-spectrum architecture (IR position + visible state)
- Attention-Slumber-Prediction-Cycle.md - Blend marker predictions extension

Key insights: Decision markers (mark+continue+predict), Low-Cost-Mocap integration

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

architecture/infrastructure/Infrastructure-Index.md

@@ -0,0 +1,55 @@
+# Infrastructure Index
+
+**Physical substrate and spatial architecture of the Nimmerverse.**
+
+---
+
+## Overview
+
+Infrastructure documents describe the physical world that organisms inhabit — the actual furniture, cameras, and spatial layouts that form the real garden. This is where digital dreams meet physical reality.
+
+---
+
+## Documents
+
+### [Kallax Grid World](Kallax-Grid-World.md)
+Street-liberated IKEA as sim-to-real bridge.
+- 40×40×40cm standardized cells
+- 12 garage stations across lab/kitchen
+- The 1m rule: pure geometry below, chaos above
+- Bird's eye camera rig on oak crafting table
+- **Status**: Concept ready, Baumarkt run planned
+
+---
+
+## Design Principles
+
+1. **Salvage First** — Street-liberated over store-bought
+2. **Uniformity Enables** — Standard cells eliminate geometric noise
+3. **Sim-Real Parity** — What you model is what you get
+4. **Constraints Are Features** — IKEA dimensions become architecture
+
+---
+
+## Physical Locations
+
+| Location | Infrastructure | Function |
+|----------|---------------|----------|
+| **Lab** | Kallax grid + crafting table | Primary organism arena |
+| **Kitchen** | Kallax cells | Extended garage network |
+
+---
+
+## Related Sections
+
+- [`interfaces/`](../interfaces/Interfaces-Index.md) — Digital and display interfaces
+- [`organs/`](../organs/Organ-Index.md) — Individual system components
+- [`formalization/`](../formalization/) — Theoretical frameworks
+
+---
+
+**File**: Infrastructure-Index.md
+**Version**: 1.0
+**Created**: 2025-12-29
+**Aesthetic**: Schrotti Cyberpunk 🗑️→🏗️
+