style: Apply code formatting with go fmt

- Run 'make format' to ensure all Go code follows standard formatting
- Maintains consistent code style across the entire codebase
- No functional changes, only whitespace and formatting improvements

internal/database/manager_callsign_test.go

@@ -21,15 +21,15 @@ func TestCallsignManager_ParseCallsign(t *testing.T) {
 	manager := NewCallsignManager(db.GetConnection())
 
 	testCases := []struct {
-		callsign         string
-		expectedValid    bool
-		expectedAirline  string
-		expectedFlight   string
+		callsign        string
+		expectedValid   bool
+		expectedAirline string
+		expectedFlight  string
 	}{
 		{"UAL123", true, "UAL", "123"},
 		{"BA4567", true, "BA", "4567"},
 		{"AFR89", true, "AFR", "89"},
-		{"N123AB", false, "", ""}, // Aircraft registration, not callsign
+		{"N123AB", false, "", ""},  // Aircraft registration, not callsign
 		{"INVALID", false, "", ""}, // No numbers
 		{"123", false, "", ""},     // Only numbers
 		{"A", false, "", ""},       // Too short
@@ -39,15 +39,15 @@ func TestCallsignManager_ParseCallsign(t *testing.T) {
 	for _, tc := range testCases {
 		result := manager.ParseCallsign(tc.callsign)
 		if result.IsValid != tc.expectedValid {
-			t.Errorf("ParseCallsign(%s): expected valid=%v, got %v", 
+			t.Errorf("ParseCallsign(%s): expected valid=%v, got %v",
 				tc.callsign, tc.expectedValid, result.IsValid)
 		}
 		if result.IsValid && result.AirlineCode != tc.expectedAirline {
-			t.Errorf("ParseCallsign(%s): expected airline=%s, got %s", 
+			t.Errorf("ParseCallsign(%s): expected airline=%s, got %s",
 				tc.callsign, tc.expectedAirline, result.AirlineCode)
 		}
 		if result.IsValid && result.FlightNumber != tc.expectedFlight {
-			t.Errorf("ParseCallsign(%s): expected flight=%s, got %s", 
+			t.Errorf("ParseCallsign(%s): expected flight=%s, got %s",
 				tc.callsign, tc.expectedFlight, result.FlightNumber)
 		}
 	}
@@ -101,7 +101,7 @@ func TestCallsignManager_GetCallsignInfo_InvalidCallsign(t *testing.T) {
 	defer cleanup()
 
 	manager := NewCallsignManager(db.GetConnection())
-	
+
 	// Test with invalid callsign format
 	info, err := manager.GetCallsignInfo("INVALID")
 	if err != nil {
@@ -129,7 +129,7 @@ func TestCallsignManager_GetCallsignInfo_EmptyCallsign(t *testing.T) {
 	defer cleanup()
 
 	manager := NewCallsignManager(db.GetConnection())
-	
+
 	// Test with empty callsign
 	info, err := manager.GetCallsignInfo("")
 	if err == nil {
@@ -162,7 +162,7 @@ func TestCallsignManager_GetCacheStats(t *testing.T) {
 	if err != nil {
 		t.Error("GetCacheStats should not error:", err)
 	}
-	
+
 	if stats == nil {
 		t.Error("Expected cache stats, got nil")
 	}
@@ -265,4 +265,4 @@ func TestCallsignParseResult_Struct(t *testing.T) {
 	if !result.IsValid {
 		t.Error("IsValid field not preserved")
 	}
-}
+}