fix: resolve parameterized $compareTo types and fix array count type

- VisitNameAndData: return any instead of named struct when mergeCompareTo
  resolves $compareTo, fixing field type mismatches for switch/container types
- ContainerCompareTo: traverse anon/bitfield fields for compareTo resolution,
  fixes entityMetadata 'field not found' errors
- Array.Count: change from string to any to handle numeric count values
- ArrayEncoder: fix nil check to correctly write length prefix for arrays
- ArrayDecoder: use fmt.Sprint for safe Count conversion

mc/proto_generator/native_encoder.go

@@ -79,7 +79,7 @@ func ArrayEncoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s
 	iName := "i" + name
 	//s, err = g.VisitEncoder(varToSet, data.Type, name)
 	var s1 []ast.Stmt
-	if data.Count == "" {
+	if data.Count == nil {
 		s1, err = g.VisitEncoder(Call(ct, Call(Ident("len"), varToSet)), data.CountType, name)
 		if err != nil {
 			return