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/prometheus/prometheus-docker.yml

@@ -0,0 +1,19 @@
+# Prometheus scrape config when BOTH CCAM and Prometheus run in Docker on the
+# shared `ccam` network (docker-compose.full.yml). The Host guard on the
+# dashboard must allow `agent-monitor` — set via DASHBOARD_ALLOWED_HOSTS there.
+global:
+  scrape_interval: 15s
+  scrape_timeout: 10s
+
+rule_files:
+  - ccam-rules.yml
+
+scrape_configs:
+  - job_name: ccam
+    metrics_path: /api/metrics
+    static_configs:
+      - targets: ["agent-monitor:4820"]
+    # If the server sets DASHBOARD_TOKEN (LAN deployments), uncomment and fill in:
+    # authorization:
+    #   type: Bearer
+    #   credentials: "<DASHBOARD_TOKEN>"