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

internal/routewatch/cli.go

@@ -0,0 +1,51 @@
+package routewatch
+
+import (
+	"context"
+	"log/slog"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"go.uber.org/fx"
+)
+
+// CLIEntry is the main entry point for the CLI
+func CLIEntry() {
+	app := fx.New(
+		getModule(),
+		fx.Invoke(func(lc fx.Lifecycle, rw *RouteWatch, logger *slog.Logger) {
+			lc.Append(fx.Hook{
+				OnStart: func(_ context.Context) error {
+					go func() {
+						ctx, cancel := context.WithCancel(context.Background())
+						defer cancel()
+
+						// Handle shutdown signals
+						sigCh := make(chan os.Signal, 1)
+						signal.Notify(sigCh, os.Interrupt, syscall.SIGTERM)
+
+						go func() {
+							<-sigCh
+							logger.Info("Received shutdown signal")
+							cancel()
+						}()
+
+						if err := rw.Run(ctx); err != nil {
+							logger.Error("RouteWatch error", "error", err)
+						}
+					}()
+
+					return nil
+				},
+				OnStop: func(_ context.Context) error {
+					logger.Info("Shutting down RouteWatch")
+
+					return nil
+				},
+			})
+		}),
+	)
+
+	app.Run()
+}