Initial commit: RouteWatch BGP stream monitor

- Connects to RIPE RIS Live stream to receive real-time BGP updates
- Stores BGP data in SQLite database:
  - ASNs with first/last seen timestamps
  - Prefixes with IPv4/IPv6 classification
  - BGP announcements and withdrawals
  - AS-to-AS peering relationships from AS paths
  - Live routing table tracking active routes
- HTTP server with statistics endpoints
- Metrics tracking with go-metrics
- Custom JSON unmarshaling to handle nested AS sets in paths
- Dependency injection with uber/fx
- Pure Go implementation (no CGO)
- Includes streamdumper utility for debugging raw messages

Makefile

@@ -0,0 +1,24 @@
+export DEBUG = routewatch
+
+.PHONY: test fmt lint build clean run
+
+all: test
+
+test: lint
+	go test -v ./...
+
+fmt:
+	go fmt ./...
+
+lint:
+	go vet ./...
+	golangci-lint run
+
+build:
+	go build -o bin/routewatch cmd/routewatch/main.go
+
+clean:
+	rm -rf bin/
+
+run: build
+	./bin/routewatch