style: заменить короткие имена переменных

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

pkg/adapters/crypto/composite/composite.go

@@ -233,40 +233,40 @@ func writeHeader(
 	wrapNonce, wrappedCek, firstPayloadNonce []byte,
 ) error {
 	var buf bytes.Buffer
-	var b4 [4]byte
+	var scratchBytes [4]byte
 
-	binary.BigEndian.PutUint32(b4[:], magic)
-	buf.Write(b4[:]) // [0:4] magic
+	binary.BigEndian.PutUint32(scratchBytes[:], magic)
+	buf.Write(scratchBytes[:]) // [0:4] magic
 
-	binary.BigEndian.PutUint16(b4[:2], version)
-	buf.Write(b4[:2]) // [4:6] version
+	binary.BigEndian.PutUint16(scratchBytes[:2], version)
+	buf.Write(scratchBytes[:2]) // [4:6] version
 
-	binary.BigEndian.PutUint32(b4[:], flags)
-	buf.Write(b4[:]) // [6:10] flags
+	binary.BigEndian.PutUint32(scratchBytes[:], flags)
+	buf.Write(scratchBytes[:]) // [6:10] flags
 
 	// [10] nRecipients — composite v2 always carries exactly two slots.
 	buf.WriteByte(byte(maxRecipients))
 
 	// Slot 0 (PQ).
-	binary.BigEndian.PutUint16(b4[:2], pqPub.SchemeID())
-	buf.Write(b4[:2])
+	binary.BigEndian.PutUint16(scratchBytes[:2], pqPub.SchemeID())
+	buf.Write(scratchBytes[:2])
 	if len(pqPub.KeyID()) != 8 {
 		return ErrMalformedHeader
 	}
 	buf.Write(pqPub.KeyID())
-	binary.BigEndian.PutUint32(b4[:], uint32(len(pqCt)))
-	buf.Write(b4[:])
+	binary.BigEndian.PutUint32(scratchBytes[:], uint32(len(pqCt)))
+	buf.Write(scratchBytes[:])
 	buf.Write(pqCt)
 
 	// Slot 1 (classical).
-	binary.BigEndian.PutUint16(b4[:2], classicalPub.SchemeID())
-	buf.Write(b4[:2])
+	binary.BigEndian.PutUint16(scratchBytes[:2], classicalPub.SchemeID())
+	buf.Write(scratchBytes[:2])
 	if len(classicalPub.KeyID()) != 8 {
 		return ErrMalformedHeader
 	}
 	buf.Write(classicalPub.KeyID())
-	binary.BigEndian.PutUint32(b4[:], uint32(len(classicalCt)))
-	buf.Write(b4[:])
+	binary.BigEndian.PutUint32(scratchBytes[:], uint32(len(classicalCt)))
+	buf.Write(scratchBytes[:])
 	buf.Write(classicalCt)
 
 	// wrapNonce + wrappedCEK + firstPayloadNonce.

pkg/adapters/crypto/x25519/x25519.go

@@ -136,8 +136,8 @@ func (k *kemAdapter) Decapsulate(
 
 	// Reject the all-zero public key (identity point), which yields an all-zero shared secret.
 	allZero := true
-	for _, b := range ciphertext {
-		if b != 0 {
+	for _, byteValue := range ciphertext {
+		if byteValue != 0 {
 			allZero = false
 			break
 		}