feat: Implement Phase 1 K8s agent orchestrator system

Core agent system for Raspberry Pi k0s cluster management:

Agents:
- k8s-orchestrator: Central task delegation and decision making
- k8s-diagnostician: Cluster health, logs, troubleshooting
- argocd-operator: GitOps deployments and rollbacks
- prometheus-analyst: Metrics queries and alert analysis
- git-operator: Manifest management and PR workflows

Workflows:
- cluster-health-check.yaml: Scheduled health assessment
- deploy-app.md: Application deployment guide
- pod-crashloop.yaml: Automated incident response

Skills:
- /cluster-status: Quick health overview
- /deploy: Deploy or update applications
- /diagnose: Investigate cluster issues

Configuration:
- Agent definitions with model assignments (Opus/Sonnet)
- Autonomy rules (safe/confirm/forbidden actions)

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

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

skills/diagnose.md

@@ -0,0 +1,124 @@
+# Diagnose Issue
+
+Investigate and diagnose problems in the Raspberry Pi Kubernetes cluster.
+
+## Usage
+
+```
+/diagnose <issue-description>
+/diagnose pod <pod-name> -n <namespace>
+/diagnose app <argocd-app-name>
+/diagnose node <node-name>
+```
+
+## What it does
+
+Invokes the k8s-orchestrator to investigate issues by coordinating multiple specialist agents.
+
+## Diagnosis Types
+
+### General Issue
+```
+/diagnose "my app is returning 503 errors"
+```
+The orchestrator will:
+1. Identify relevant resources
+2. Check pod status and logs
+3. Query relevant metrics
+4. Analyze ArgoCD sync state
+5. Provide diagnosis and recommendations
+
+### Pod Diagnosis
+```
+/diagnose pod myapp-7d9f8b6c5-x2k4m -n production
+```
+Focuses on:
+- Pod status and events
+- Container logs (current and previous)
+- Resource usage vs limits
+- Restart history
+- Related alerts
+
+### ArgoCD App Diagnosis
+```
+/diagnose app homepage
+```
+Focuses on:
+- Sync status and history
+- Health status of resources
+- Diff between desired and live state
+- Recent sync errors
+
+### Node Diagnosis
+```
+/diagnose node pi5-1
+```
+Focuses on:
+- Node conditions
+- Resource pressure
+- Running pods count
+- System events
+- Disk and network status
+
+## Investigation Flow
+
+```
+User describes issue
+        │
+        ▼
+┌─────────────────┐
+│ k8s-orchestrator│ ─── Analyze issue, plan investigation
+└────────┬────────┘
+         │
+    ┌────┼────┬────────┐
+    ▼    ▼    ▼        ▼
+┌──────┐┌──────┐┌──────┐┌──────┐
+│diag- ││argo- ││prom- ││git-  │
+│nosti-││cd-   ││etheus││opera-│
+│cian  ││oper- ││analy-││tor   │
+│      ││ator  ││st    ││      │
+└──┬───┘└──┬───┘└──┬───┘└──┬───┘
+   │       │       │       │
+   └───────┴───────┴───────┘
+                │
+                ▼
+        ┌─────────────────┐
+        │ k8s-orchestrator│ ─── Synthesize findings
+        └────────┬────────┘
+                 │
+                 ▼
+        Diagnosis + Recommendations
+```
+
+## Output Format
+
+```
+Diagnosis for: [issue description]
+
+Status: [Investigating/Identified/Resolved]
+
+Findings:
+1. [Finding with evidence]
+2. [Finding with evidence]
+
+Root Cause:
+[Explanation of what's causing the issue]
+
+Evidence:
+- [Relevant log lines or metrics]
+- [Command outputs]
+
+Recommended Actions:
+- [SAFE] Action that can be auto-applied
+- [CONFIRM] Action requiring approval
+- [INFO] Suggestion for manual follow-up
+
+Severity: [Low/Medium/High/Critical]
+```
+
+## Options
+
+- `--verbose` - Include full command outputs
+- `--logs` - Focus on log analysis
+- `--metrics` - Focus on metrics analysis
+- `--quick` - Fast surface-level check only