feat: add dynamic scope from request's input

- all occurences of '[abc]' where 'abc' is a valid input name ('name' field from json) is replaced with its value between square brackets

handler.go

@@ -1,7 +1,9 @@
 package aicra
 
 import (
+	"fmt"
 	"net/http"
+	"strings"
 
 	"git.xdrm.io/go/aicra/api"
 	"git.xdrm.io/go/aicra/internal/config"
@@ -50,8 +52,26 @@ func (s Handler) resolve(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// replace format '[a]' in scope where 'a' is an existing input's name
+	scope := make([][]string, len(service.Scope))
+	for a, list := range service.Scope {
+		scope[a] = make([]string, len(list))
+		for b, perm := range list {
+			scope[a][b] = perm
+			for name, value := range input.Data {
+				if stringer, ok := value.(fmt.Stringer); ok {
+					scope[a][b] = strings.ReplaceAll(
+						scope[a][b],
+						fmt.Sprintf("[%s]", name),
+						fmt.Sprintf("[%s]", stringer),
+					)
+				}
+			}
+		}
+	}
+
 	var auth = api.Auth{
-		Required: service.Scope,
+		Required: scope,
 		Active:   []string{},
 	}