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/streamer/streamer_test.go

@@ -0,0 +1,34 @@
+package streamer
+
+import (
+	"testing"
+
+	"git.eeqj.de/sneak/routewatch/internal/metrics"
+	"log/slog"
+)
+
+func TestNewStreamer(t *testing.T) {
+	logger := slog.Default()
+	metricsTracker := metrics.New()
+	s := New(logger, metricsTracker)
+
+	if s == nil {
+		t.Fatal("New() returned nil")
+	}
+
+	if s.logger != logger {
+		t.Error("logger not set correctly")
+	}
+
+	if s.client == nil {
+		t.Error("HTTP client not initialized")
+	}
+
+	if s.handlers == nil {
+		t.Error("handlers slice not initialized")
+	}
+
+	if s.metrics != metricsTracker {
+		t.Error("metrics tracker not set correctly")
+	}
+}