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-server/src/engine/api/rest/errors/RestApiException.ts

@@ -2,22 +2,34 @@ import { BadRequestException } from '@nestjs/common';
 
 import { BaseGraphQLError } from 'src/engine/core-modules/graphql/utils/graphql-errors.util';
 
-const formatMessage = (message: BaseGraphQLError) => {
-  if (message.extensions) {
-    return message.extensions.response.message || message.extensions.response;
+const formatMessage = (error: BaseGraphQLError) => {
+  let formattedMessage = error.extensions
+    ? error.extensions.response?.error ||
+      error.extensions.response ||
+      error.message
+    : error.error;
+
+  formattedMessage = formattedMessage
+    .replace(/"/g, "'")
+    .replace("Variable '$data' got i", 'I')
+    .replace("Variable '$input' got i", 'I');
+
+  const regex = /Field '[^']+' is not defined by type .*/;
+
+  const match = formattedMessage.match(regex);
+
+  if (match) {
+    formattedMessage = match[0];
   }
 
-  return message.message;
+  return formattedMessage;
 };
 
 export class RestApiException extends BadRequestException {
   constructor(errors: BaseGraphQLError[]) {
     super({
       statusCode: 400,
-      message:
-        errors.length === 1
-          ? formatMessage(errors[0])
-          : JSON.stringify(errors.map((error) => formatMessage(error))),
+      messages: errors.map((error) => formatMessage(error)),
       error: 'Bad Request',
     });
   }