feat: follow llm.txt

backend/app/requests/label.go

@@ -1,8 +1,11 @@
 package requests
 
+// KV is a generic key-value response item, commonly used for label/value enums.
 type KV struct {
-	Key   string `json:"key,omitempty"`
-	Value any    `json:"value,omitempty"`
+	// Key is a machine-readable value, usually an enum string.
+	Key string `json:"key,omitempty"`
+	// Value is the label payload, often a human-readable string.
+	Value any `json:"value,omitempty"`
 }
 
 func NewKV(k string, v any) KV {