[FIX] Try Get

lib/src/form/src/controller.dart

@@ -107,13 +107,33 @@ class AstromicFormController {
   }
 
   /// Safely attempts to retrieve a value, returning `null` if the node is missing or of a different type.
+  // T? tryGet<T>(String id) {
+  //   if (_nodes.containsKey(id)) {
+  //     final n = _nodes[id];
+  //     if (n is AstromicFieldNode<T>) {
+  //       return n.value;
+  //     }
+  //   }
+  //   return null;
+  // }
+
   T? tryGet<T>(String id) {
-    if (_nodes.containsKey(id)) {
     final n = _nodes[id];
-      if (n is AstromicFieldNode<T>) {
+    if (n == null) return null;
-        return n.value;
+
+    // Access the value via dynamic to bypass the strict Node type check
+    final dynamic value = n.value;
+
+    // Check if the value is actually of type T (or null)
+    if (value is T) {
+      return value;
     }
+    
+    // Fallback for null-safety: if T is nullable and value is null
+    if (value == null && _isNullable<T>()) {
+       return null;
     }
+
     return null;
   }