Build code introspection service (#7760)

Starting to use ts-morph to retrieve function parameters

packages/twenty-server/src/modules/code-introspection/code-introspection.exception.ts

@@ -0,0 +1,12 @@
+import { CustomException } from 'src/utils/custom-exception';
+
+export class CodeIntrospectionException extends CustomException {
+  code: CodeIntrospectionExceptionCode;
+  constructor(message: string, code: CodeIntrospectionExceptionCode) {
+    super(message, code);
+  }
+}
+
+export enum CodeIntrospectionExceptionCode {
+  ONLY_ONE_FUNCTION_ALLOWED = 'ONLY_ONE_FUNCTION_ALLOWED',
+}