chore: phpstan rules added

phpstan.dist.neon

@@ -7,4 +7,27 @@ parameters:
         - src
         - ajax
     bootstrapFiles:
-        - tests/phpstan-bootstrap.php
\ No newline at end of file
+        - tests/phpstan-bootstrap.php
+    treatPhpDocTypesAsCertain: false
+    customRulesetUsed: true
+services:
+    -
+        class: \PHPStan\Rules\Properties\TypesAssignedToPropertiesRule
+        tags:
+            - phpstan.rules.rule
+    -
+        class: \PHPStan\Rules\Functions\ArrowFunctionReturnTypeRule
+        tags:
+            - phpstan.rules.rule
+    -
+        class: \PHPStan\Rules\Functions\ClosureReturnTypeRule
+        tags:
+            - phpstan.rules.rule
+    -
+        class: \PHPStan\Rules\Functions\ReturnTypeRule
+        tags:
+            - phpstan.rules.rule
+    -
+        class: \PHPStan\Rules\Methods\ReturnTypeRule
+        tags:
+            - phpstan.rules.rule