ax(batch): fix abbreviated names in comment examples and locals

h→hash/histogram, e→miningError, a/b→current/previous,
n→count, user/pass→username/password, passMatch→passwordMatch
in comment examples and auth.go locals.

Co-Authored-By: Charon <charon@lethean.io>

pkg/mining/auth.go

@@ -179,16 +179,15 @@ func (digestAuth *DigestAuth) validateDigest(c *gin.Context, authHeader string)
 // valid := digestAuth.validateBasic(c, c.GetHeader("Authorization"))
 func (digestAuth *DigestAuth) validateBasic(c *gin.Context, authHeader string) bool {
 	// Gin has built-in basic auth, but we do manual validation for consistency
-	user, pass, ok := c.Request.BasicAuth()
+	username, password, ok := c.Request.BasicAuth()
 	if !ok {
 		return false
 	}
 
-	// Constant-time comparison to prevent timing attacks
-	userMatch := subtle.ConstantTimeCompare([]byte(user), []byte(digestAuth.config.Username)) == 1
-	passMatch := subtle.ConstantTimeCompare([]byte(pass), []byte(digestAuth.config.Password)) == 1
+	userMatch := subtle.ConstantTimeCompare([]byte(username), []byte(digestAuth.config.Username)) == 1
+	passwordMatch := subtle.ConstantTimeCompare([]byte(password), []byte(digestAuth.config.Password)) == 1
 
-	return userMatch && passMatch
+	return userMatch && passwordMatch
 }
 
 // nonce := digestAuth.generateNonce() // 32-char hex string, cryptographically random
@@ -253,7 +252,7 @@ func parseDigestParams(header string) map[string]string {
 	return params
 }
 
-// h := md5Hash("user:realm:pass") // "5f4dcc3b5aa765d61d8327deb882cf99"
+// hash := md5Hash("user:realm:pass") // "5f4dcc3b5aa765d61d8327deb882cf99"
 func md5Hash(input string) string {
 	digest := md5.Sum([]byte(input))
 	return hex.EncodeToString(digest[:])

pkg/mining/errors.go

@@ -26,8 +26,8 @@ const (
 	ErrCodeInternalError      = "INTERNAL_ERROR"
 )
 
-// e := &MiningError{Code: ErrCodeStartFailed, Message: "failed to start xmrig", HTTPStatus: 500}
-// e.WithCause(err).WithSuggestion("check logs")
+// miningError := &MiningError{Code: ErrCodeStartFailed, Message: "failed to start xmrig", HTTPStatus: 500}
+// miningError.WithCause(err).WithSuggestion("check logs")
 type MiningError struct {
 	Code       string // Machine-readable error code
 	Message    string // Human-readable message

pkg/mining/metrics.go

@@ -34,15 +34,15 @@ type Metrics struct {
 	P2PConnectionsTotal atomic.Int64
 }
 
-// h := mining.NewLatencyHistogram(1000)
-// h.Record(42 * time.Millisecond)
+// histogram := mining.NewLatencyHistogram(1000)
+// histogram.Record(42 * time.Millisecond)
 type LatencyHistogram struct {
 	mutex   sync.Mutex
 	samples []time.Duration
 	maxSize int
 }
 
-// h := mining.NewLatencyHistogram(1000)  // retain up to 1000 latency samples
+// histogram := mining.NewLatencyHistogram(1000)  // retain up to 1000 latency samples
 func NewLatencyHistogram(maxSize int) *LatencyHistogram {
 	return &LatencyHistogram{
 		samples: make([]time.Duration, 0, maxSize),

pkg/mining/miner.go

@@ -285,9 +285,9 @@ func (b *BaseMiner) InstallFromURL(url string) error {
 	return nil
 }
 
-// a := parseVersion("6.24.0") // [6, 24, 0]
-// b := parseVersion("5.0.1")  // [5, 0, 1]
-// if compareVersions(a, b) > 0 { /* a is newer */ }
+// current := parseVersion("6.24.0") // [6, 24, 0]
+// previous := parseVersion("5.0.1")  // [5, 0, 1]
+// if compareVersions(current, previous) > 0 { /* current is newer */ }
 func parseVersion(versionString string) []int {
 	parts := strings.Split(versionString, ".")
 	intParts := make([]int, len(parts))
@@ -435,14 +435,14 @@ func (b *BaseMiner) AddHashratePoint(point HashratePoint) {
 	b.HashrateHistory = append(b.HashrateHistory, point)
 }
 
-// n := miner.GetHighResHistoryLength() // 0..30 points (last 5 min at 10s resolution)
+// count := miner.GetHighResHistoryLength() // 0..30 points (last 5 min at 10s resolution)
 func (b *BaseMiner) GetHighResHistoryLength() int {
 	b.mutex.RLock()
 	defer b.mutex.RUnlock()
 	return len(b.HashrateHistory)
 }
 
-// n := miner.GetLowResHistoryLength() // 0..1440 points (last 24h at 1min resolution)
+// count := miner.GetLowResHistoryLength() // 0..1440 points (last 24h at 1min resolution)
 func (b *BaseMiner) GetLowResHistoryLength() int {
 	b.mutex.RLock()
 	defer b.mutex.RUnlock()