fix: improve rejudge

internal/models/result.go

@@ -6,11 +6,12 @@ type Result int32
 
 const (
     NotTested               Result = 0
-    Accepted                Result = 1
-    TimeLimitExceeded       Result = 2
-    MemoryLimitExceeded     Result = 3
-    CompilationError        Result = 4
-    SystemFailDuringTesting Result = 5
+    Testing                 Result = 1
+    Accepted                Result = 2
+    TimeLimitExceeded       Result = 3
+    MemoryLimitExceeded     Result = 4
+    CompilationError        Result = 5
+    SystemFailDuringTesting Result = 6
 )
 
 func (result Result) Valid() error {