Fix unauthorized error handling (#6835)

from @BOHEUS comments in #6640
- fix bad 500 error when authentication invalid 
- remove "id", "createdAt", "updatedAt", etc from creation and update
paths schema
- improve error message 
- remove "id" from test body
- improve secondaryLink schema description
- improve depth parameter description
- remove required from response body
- improve examples
- improve error message formatting
- fix filter by position
- answered to negative float position @BOHEUS comment

Also:
- fix secondary field openapi field description
- remove schema display in playground

Screenshots

![image](https://github.com/user-attachments/assets/a5d52afd-ab10-49f3-8806-ee41b04bc775)

![image](https://github.com/user-attachments/assets/33f985bb-ff75-42f6-a0bb-741bd32a1d08)

packages/twenty-website/src/app/_components/playground/rest-api-wrapper.tsx

@@ -23,7 +23,11 @@ export const RestApiWrapper = ({ openApiJson }: { openApiJson: any }) => {
         overflow: 'auto',
       }}
     >
-      <API apiDescriptionDocument={JSON.stringify(openApiJson)} router="hash" />
+      <API
+        apiDescriptionDocument={JSON.stringify(openApiJson)}
+        hideSchemas={true}
+        router="hash"
+      />
     </div>
   );
 };