feat: complete agent monitoring - hook, UI, and backend filter

- Add event_type and framework filters to events query endpoint
- Add /agents SPA route to web-ui server
- Add Agents nav link and route in frontend
- Add agents page CSS (timeline, VM pills, stats panel)
- Build VM status strip, activity timeline, and real-time stats
- Add agentmon hook for OpenClaw (HOOK.md + handler.ts)
- Add docker-compose, Dockerfile, and supporting infra files

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Makefile

@@ -1,4 +1,10 @@
-.PHONY: tidy test run-ingest run-query run-ui run-processor
+.PHONY: tidy test run-ingest run-query run-ui run-processor run-openclaw-monitor up down logs
+
+# Load .env file
+ifneq (,$(wildcard ./.env))
+    include .env
+    export
+endif
 
 tidy:
 	go mod tidy
@@ -18,29 +24,14 @@ run-ui:
 run-processor:
 	DATABASE_URL=$${DATABASE_URL:?set DATABASE_URL} NATS_URL=$${NATS_URL:-nats://nats:4222} NATS_TOPIC=$${NATS_TOPIC:-agentmon.events.v1} go run ./cmd/event-processor
 
-tidy:
-	go mod tidy
+run-openclaw-monitor:
+	NATS_URL=$${NATS_URL:-nats://nats:4222} NATS_TOPIC=$${NATS_TOPIC:-agentmon.events.v1} OPENCLAW_REGISTRY=$${OPENCLAW_REGISTRY:-/home/will/.claude/state/openclaw-instances.json} POLL_INTERVAL=$${POLL_INTERVAL:-30s} go run ./cmd/openclaw-monitor
 
-test:
-	go test ./...
+up:
+	docker-compose up -d
 
-run-ingest:
-	AGENTMON_ADDR=:8080 go run ./cmd/ingest-gateway
+down:
+	docker-compose down
 
-run-query:
-	AGENTMON_QUERY_ADDR=:8081 go run ./cmd/query-api
-
-run-ui:
-	AGENTMON_UI_ADDR=:8082 go run ./cmd/web-ui
-
-tidy:
-	go mod tidy
-
-test:
-	go test ./...
-
-run-ingest:
-	AGENTMON_ADDR=:8080 go run ./cmd/ingest-gateway
-
-run-query:
-	AGENTMON_QUERY_ADDR=:8081 go run ./cmd/query-api
+logs:
+	docker-compose logs -f