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/deployment-patch.yaml

@@ -0,0 +1,42 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: agent-monitor
+  namespace: agent-monitor
+spec:
+  replicas: 3
+  template:
+    spec:
+      # Production: require spreading across nodes
+      affinity:
+        podAntiAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            - labelSelector:
+                matchExpressions:
+                  - key: app.kubernetes.io/name
+                    operator: In
+                    values:
+                      - agent-monitor
+              topologyKey: kubernetes.io/hostname
+      topologySpreadConstraints:
+        - maxSkew: 1
+          topologyKey: kubernetes.io/hostname
+          whenUnsatisfiable: DoNotSchedule
+          labelSelector:
+            matchLabels:
+              app.kubernetes.io/name: agent-monitor
+        - maxSkew: 1
+          topologyKey: topology.kubernetes.io/zone
+          whenUnsatisfiable: ScheduleAnyway
+          labelSelector:
+            matchLabels:
+              app.kubernetes.io/name: agent-monitor
+      containers:
+        - name: agent-monitor
+          resources:
+            requests:
+              memory: "256Mi"
+              cpu: "200m"
+            limits:
+              memory: "1Gi"
+              cpu: "1000m"