feat(openclaw,infra): optimize token usage with GLM-5.3-Flash and add Garmin MCP integration

- Migrate OpenClaw primary model to z-ai/glm-5.3-flash across conductor, heartbeat, subagents, and vision
- Configure deepseek-v4.1-flash and qwen3.8-flash as fallback models; retire claude-3.7-sonnet and deepseek-v4-pro
- Decouple heartbeat target to prevent active session context amplification and token bleed
- Add Garmin Connect MCP integration, secret unpacking, and Elite Strength Coach SOUL protocol
- Add ADR 0001 documenting hybrid tool search and subagent architecture
- Update Authentik configuration, theme styles, and Terraform state
- Add Grafana dashboard for Taupi fan monitoring and update Velero secrets
- Bump knowledge-wiki submodule pointer

docs/adr/README.md

@@ -0,0 +1,39 @@
+# Architecture Decision Records (ADRs)
+
+This directory documents the key architectural decisions made within the **Infrapuzzle** monorepo and its associated workloads (Kubernetes, OpenClaw AI agent, networking, DNS, and smart home systems).
+
+We follow the [Markdown Architectural Decision Records (MADR)](https://adr.github.io/madr/) format to capture intentional technical decisions, their context, considered options, trade-offs, and consequences.
+
+---
+
+## 📋 Record Index
+
+| ADR | Title | Status | Date | Area |
+| :--- | :--- | :---: | :---: | :--- |
+| [**0001**](0001-hybrid-mcp-tool-search-and-subagents.md) | **Hybrid MCP Tool Search and Subagent Delegation for AI Agents** | `accepted` | 2026-09-12 | OpenClaw / AI / MCP |
+
+---
+
+## ✍️ How to Create a New ADR
+
+1. Copy the template structure into a new numbered markdown file:
+   ```bash
+   docs/adr/000X-short-title-in-kebab-case.md
+   ```
+2. Include the YAML frontmatter:
+   ```yaml
+   ---
+   status: "proposed | accepted | superseded | deprecated"
+   date: YYYY-MM-DD
+   decision-makers: ["Moritz Graf", "Antigravity"]
+   consulted: []
+   informed: []
+   ---
+   ```
+3. Clearly define:
+   - **Context & Problem Statement** (Why was this decision needed?)
+   - **Decision Drivers** (Constraints, costs, token limits, latency, maintainability)
+   - **Considered Options** (Alternatives evaluated)
+   - **Decision Outcome** (Chosen path with justification)
+   - **Consequences** (Positive effects, negative trade-offs, follow-up actions)
+4. Add the new record to the table in this `README.md`.