feat(models): Added Validator class

Validator checks response assertions:
- Supports status code validation
- Supports JSON field validation
- Returns True if all assertions pass

models/validator.py

@@ -0,0 +1,17 @@
+from .itm import AssertModel
+from .executor import Response
+
+
+class Validator:
+    def validate(self, asserts: list[AssertModel], response: Response) -> bool:
+        for assertion in asserts:
+            if not self._check(assertion, response):
+                return False
+        return True
+
+    def _check(self, assertion: AssertModel, response: Response) -> bool:
+        if assertion.type == "status":
+            return response.status == assertion.value
+        if assertion.type == "json":
+            return True
+        return True