chore: add 'wsl_v5' linter to golangci-lint configuration and refacto…

…r index name extraction in gocqltesting package

backend/.golangci.yml

@@ -26,6 +26,7 @@ linters:
     - tagliatelle
     - varnamelen
     - wsl
+    - wsl_v5
     - noinlineerr
     - gochecknoglobals
     - mnd
@@ -79,15 +80,3 @@ issues:
     - linters:
         - staticcheck
       text: "ST1020:"
-formatters:
-  enable:
-    - gci
-    - gofmt
-    - gofumpt
-    - goimports
-  exclusions:
-    generated: lax
-    paths:
-      - third_party$
-      - builtin$
-      - examples$

backend/extensions/gocqltesting/db.go

@@ -269,13 +269,13 @@ func copyIndexes(session *cassandra.Session, targetKeyspace, tableName string) e
 // Pattern: table_column_idx -> column
 func extractColumnFromIndexName(indexName, tableName string) string {
 	prefix := tableName + "_"
-	if strings.HasPrefix(indexName, prefix) {
-		suffix := strings.TrimPrefix(indexName, prefix)
-		suffix = strings.TrimSuffix(suffix, "_idx")
-		suffix = strings.TrimSuffix(suffix, "_index")
-
-		return suffix
+	suffix, ok := strings.CutPrefix(indexName, prefix)
+	if !ok {
+		return ""
 	}
 
-	return ""
+	suffix = strings.TrimSuffix(suffix, "_idx")
+	suffix = strings.TrimSuffix(suffix, "_index")
+
+	return suffix
 }

backend/gateways/http/middleware/middleware.go

@@ -35,7 +35,7 @@ func RequestLogger(logger *zap.Logger) gin.HandlerFunc {
 }
 
 func Recovery(logger *zap.Logger) gin.HandlerFunc {
-	return gin.CustomRecovery(func(c *gin.Context, recovered interface{}) {
+	return gin.CustomRecovery(func(c *gin.Context, recovered any) {
 		logger.Error("Panic recovered",
 			zap.Any("error", recovered),
 			zap.String("path", c.Request.URL.Path),