Add ASN info lookup and periodic routing table statistics

- Add handle and description columns to asns table
- Look up ASN info using asinfo package when creating new ASNs
- Remove noisy debug logging for individual route updates
- Add IPv4/IPv6 route counters and update rate tracking
- Log routing table statistics every 15 seconds with IPv4/IPv6 breakdown
- Track updates per second for both IPv4 and IPv6 routes separately

internal/database/database.go

@@ -11,6 +11,7 @@ import (
 	"runtime"
 	"time"
 
+	"git.eeqj.de/sneak/routewatch/pkg/asinfo"
 	"github.com/google/uuid"
 	_ "github.com/mattn/go-sqlite3" // CGO SQLite driver
 )
@@ -174,12 +175,15 @@ func (d *Database) GetOrCreateASN(number int, timestamp time.Time) (*ASN, error)
 
 	var asn ASN
 	var idStr string
-	err = tx.QueryRow("SELECT id, number, first_seen, last_seen FROM asns WHERE number = ?", number).
-		Scan(&idStr, &asn.Number, &asn.FirstSeen, &asn.LastSeen)
+	var handle, description sql.NullString
+	err = tx.QueryRow("SELECT id, number, handle, description, first_seen, last_seen FROM asns WHERE number = ?", number).
+		Scan(&idStr, &asn.Number, &handle, &description, &asn.FirstSeen, &asn.LastSeen)
 
 	if err == nil {
 		// ASN exists, update last_seen
 		asn.ID, _ = uuid.Parse(idStr)
+		asn.Handle = handle.String
+		asn.Description = description.String
 		_, err = tx.Exec("UPDATE asns SET last_seen = ? WHERE id = ?", timestamp, asn.ID.String())
 		if err != nil {
 			return nil, err
@@ -199,15 +203,22 @@ func (d *Database) GetOrCreateASN(number int, timestamp time.Time) (*ASN, error)
 		return nil, err
 	}
 
-	// ASN doesn't exist, create it
+	// ASN doesn't exist, create it with ASN info lookup
 	asn = ASN{
 		ID:        generateUUID(),
 		Number:    number,
 		FirstSeen: timestamp,
 		LastSeen:  timestamp,
 	}
-	_, err = tx.Exec("INSERT INTO asns (id, number, first_seen, last_seen) VALUES (?, ?, ?, ?)",
-		asn.ID.String(), asn.Number, asn.FirstSeen, asn.LastSeen)
+
+	// Look up ASN info
+	if info, ok := asinfo.Get(number); ok {
+		asn.Handle = info.Handle
+		asn.Description = info.Description
+	}
+
+	_, err = tx.Exec("INSERT INTO asns (id, number, handle, description, first_seen, last_seen) VALUES (?, ?, ?, ?, ?, ?)",
+		asn.ID.String(), asn.Number, asn.Handle, asn.Description, asn.FirstSeen, asn.LastSeen)
 	if err != nil {
 		return nil, err
 	}