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.

monitoring/grafana/provisioning-native/datasources/datasource.yml

@@ -0,0 +1,12 @@
+# Auto-provisions the Prometheus datasource for a NATIVE (non-Docker) stack.
+# Prometheus is expected on the host loopback interface (see start-native.sh).
+apiVersion: 1
+
+datasources:
+  - name: Prometheus
+    type: prometheus
+    uid: ccam-prometheus
+    access: proxy
+    url: http://127.0.0.1:9090
+    isDefault: true
+    editable: true