feat: Claude Code Monitor — lanes, pipelines and a merged workspace

Internal SmartGift build of a Claude Code monitoring dashboard.

Lanes: a durable unit of parallel agent work, one per working directory,
tracked across session restarts. Managed lanes are git worktrees the
dashboard provisions and can reset or remove behind a three-check destroy
guard and a counted preflight; adopted lanes are directories you already
own and are never destroyable.

Pipelines: a lane moves through pipeline stages. A stage the agent declares
with evidence renders green; a stage inferred from the tool-event stream
renders dashed amber and never counts as done. Detection is forward-only
within a 30-minute window, and never writes the declared stage.

Workspace: one page at /run with a lane grid, the selected lane's pipeline,
and a full Claude console behind a disclosure.

deployments/kubernetes/overlays/production/patches/hpa-patch.yaml

@@ -0,0 +1,26 @@
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: agent-monitor
+  namespace: agent-monitor
+spec:
+  minReplicas: 3
+  maxReplicas: 20
+  behavior:
+    scaleDown:
+      stabilizationWindowSeconds: 600
+      policies:
+        - type: Pods
+          value: 1
+          periodSeconds: 120
+      selectPolicy: Min
+    scaleUp:
+      stabilizationWindowSeconds: 60
+      policies:
+        - type: Pods
+          value: 4
+          periodSeconds: 60
+        - type: Percent
+          value: 100
+          periodSeconds: 60
+      selectPolicy: Max