Add object property validation in parser #369

This commit introduces stricter type validation across the application
to reject objects with unexpected properties, enhancing the robustness
and predictability of data handling.

Changes include:

- Implement a common utility to validate object types.
- Refactor across various parsers and data handlers to utilize the new
  validations.
- Update error messages for better clarity and troubleshooting.

tests/unit/application/Parser/Executable/DocumentationParser.spec.ts

@@ -18,7 +18,7 @@ describe('DocumentationParser', () => {
     });
     describe('throws when type is unexpected', () => {
       // arrange
-      const expectedTypeError = 'docs field (documentation) must be an array of strings';
+      const expectedTypeError = 'docs field (documentation) must be a single string or an array of strings.';
       const wrongTypedValue = 22 as never;
       const testCases: ReadonlyArray<{
         readonly name: string;