fix(narrow): ClassGenEnum RenumClassVariantCounts 元素读取改用 int(...)

n_first_v(1029) 与 vcount(1010/1055) 承接 sizet* 元素，原先 64->32 隐式窄化；改用显式 int(...) 保持原截断语义

App/lib/core/Gen/Class/ClassGenEnum.vp

@@ -1007,7 +1007,7 @@ novirtual class ClassGenEnum(ClassGenBase.ClassGenBase):
         if variant_name is None or self.RenumClassNames is None: return None
 
         for i in range(self.RenumClassCount):
-            vcount: int = self.RenumClassVariantCounts[i]
+            vcount: int = int(self.RenumClassVariantCounts[i])
             for j in range(vcount):
                 name_offset: sizet = i * RENUM_VARIANT_PER_CLASS + j
                 vname: str = str(self.RenumVariantNames[name_offset])
@@ -1026,7 +1026,7 @@ novirtual class ClassGenEnum(ClassGenBase.ClassGenBase):
         if self.RenumClassNames is not None and self.RenumClassCount > 0:
             cls_first = str(self.RenumClassNames[0])
             if self.RenumVariantNames is not None and self.RenumClassVariantCounts is not None:
-                n_first_v = self.RenumClassVariantCounts[0]
+                n_first_v = int(self.RenumClassVariantCounts[0])
                 if n_first_v > 0: v_first = str(self.RenumVariantNames[0])
         viperlib.snprintf(buf, 256, "count=%d first=%s vcount=%d vfirst=%s", self.RenumClassCount, cls_first, n_first_v, v_first)
         return buf
@@ -1052,7 +1052,7 @@ novirtual class ClassGenEnum(ClassGenBase.ClassGenBase):
         for i in range(self.RenumClassCount):
             existing: str = str(self.RenumClassNames[i])
             if existing is None or string.strcmp(existing, class_name) != 0: continue
-            vcount: int = self.RenumClassVariantCounts[i]
+            vcount: int = int(self.RenumClassVariantCounts[i])
             for j in range(vcount):
                 name_offset: sizet = i * RENUM_VARIANT_PER_CLASS + j
                 vname: str = str(self.RenumVariantNames[name_offset])