style: run gofmt across entire codebase

330 non-vendor files had minor formatting inconsistencies
(comment alignment, whitespace). No logic changes.

common/byteframe/byteframe_test.go

@@ -468,9 +468,9 @@ func TestByteFrame_SequentialWrites(t *testing.T) {
 	bf.WriteUint64(0x08090A0B0C0D0E0F)
 
 	expected := []byte{
-		0x01,                               // uint8
-		0x02, 0x03,                         // uint16
-		0x04, 0x05, 0x06, 0x07,             // uint32
+		0x01,       // uint8
+		0x02, 0x03, // uint16
+		0x04, 0x05, 0x06, 0x07, // uint32
 		0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, // uint64
 	}
 

common/stringsupport/string_convert_test.go

@@ -54,10 +54,10 @@ func TestUTF8ToSJIS_RoundTrip(t *testing.T) {
 
 func TestToNGWord(t *testing.T) {
 	tests := []struct {
-		name     string
-		input    string
-		minLen   int
-		checkFn  func(t *testing.T, result []uint16)
+		name    string
+		input   string
+		minLen  int
+		checkFn func(t *testing.T, result []uint16)
 	}{
 		{
 			name:   "ascii characters",
@@ -328,11 +328,11 @@ func TestCSVGetIndex(t *testing.T) {
 
 func TestCSVSetIndex(t *testing.T) {
 	tests := []struct {
-		name     string
-		csv      string
-		index    int
-		value    int
-		check    func(t *testing.T, result string)
+		name  string
+		csv   string
+		index int
+		value int
+		check func(t *testing.T, result string)
 	}{
 		{
 			name:  "set first",

common/token/token_test.go

@@ -118,7 +118,7 @@ func TestGenerate_Distribution(t *testing.T) {
 
 	// With 62 valid characters and 6200 samples, average should be 100 per char
 	// We'll accept a range to account for randomness
-	minExpected := 50  // Allow some variance
+	minExpected := 50 // Allow some variance
 	maxExpected := 150
 
 	for c, count := range charCount {