Remove BGP keepalive logging and add peer tracking

- Created bgp_peers table to track all BGP peers
- Added PeerHandler to update peer last seen times for all message types
- Removed verbose BGP keepalive debug logging
- BGP keepalive messages now silently update peer tracking

Refactor HTML templates to use go:embed

- Created internal/templates package with embedded templates
- Moved status.html from inline const to separate file
- Templates are parsed once on startup
- Server now uses parsed template instead of raw string

Optimize AS data embedding with gzip compression

- Changed asinfo package to embed gzipped data (2.4MB vs 12MB)
- Updated Makefile to gzip AS data during update
- Added decompression during initialization
- Raw JSON file excluded from git

pkg/asinfo/asinfo_test.go

@@ -43,7 +43,7 @@ func TestGet(t *testing.T) {
 				t.Errorf("Get(%d) ok = %v, want %v", tt.asn, ok, tt.wantOK)
 				return
 			}
-			
+
 			if ok && info.Description != tt.wantDesc {
 				t.Errorf("Get(%d) description = %q, want %q", tt.asn, info.Description, tt.wantDesc)
 			}
@@ -93,7 +93,7 @@ func TestTotal(t *testing.T) {
 	if total < 100000 {
 		t.Errorf("Total() = %d, expected > 100000", total)
 	}
-	
+
 	// Verify it's consistent
 	if total2 := Total(); total2 != total {
 		t.Errorf("Total() returned different values: %d vs %d", total, total2)
@@ -134,7 +134,7 @@ func TestSearch(t *testing.T) {
 			if len(results) < tt.wantMin {
 				t.Errorf("Search(%q) returned %d results, want at least %d", tt.query, len(results), tt.wantMin)
 			}
-			
+
 			// Verify all results contain the query
 			if tt.query != "" {
 				for _, r := range results {
@@ -157,7 +157,7 @@ func TestDataIntegrity(t *testing.T) {
 		}
 		seen[info.ASN] = true
 	}
-	
+
 	// Verify all entries have required fields
 	for _, info := range all {
 		if info.Handle == "" && info.ASN != 0 {
@@ -172,7 +172,7 @@ func TestDataIntegrity(t *testing.T) {
 func BenchmarkGet(b *testing.B) {
 	// Common ASNs to lookup
 	asns := []int{1, 15169, 13335, 32934, 8075, 16509}
-	
+
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
 		Get(asns[i%len(asns)])
@@ -181,9 +181,9 @@ func BenchmarkGet(b *testing.B) {
 
 func BenchmarkSearch(b *testing.B) {
 	queries := []string{"Google", "Amazon", "Microsoft", "University"}
-	
+
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
 		Search(queries[i%len(queries)])
 	}
-}
+}