feat: add docs

internal/handler/response.go

@@ -6,15 +6,22 @@ import (
 )
 
 type APIResponse struct {
-	Success bool       `json:"success"`
-	Data    any        `json:"data,omitempty"`
-	Errors  []APIError `json:"errors,omitempty"`
-	Message string     `json:"message,omitempty"`
+	// Indicates if the request was successful
+	Success bool `json:"success"`
+	// The response data
+	Data any `json:"data,omitempty"`
+	// List of errors if any occurred
+	Errors []APIError `json:"errors,omitempty"`
+	// Optional message
+	Message string `json:"message,omitempty"`
 }
 
 type APIError struct {
-	Code    int    `json:"code"`
+	// Error code
+	Code int `json:"code"`
+	// Human-readable error message
 	Message string `json:"message"`
+	// Additional error details
 	Details string `json:"details,omitempty"`
 }