refactor: add server side validation schema for attachments (#4606)

* refactor: schema for attachments.create

* refactor: schema for attachments.delete

* refactor: remove deprecated "public" request param

server/routes/api/attachments/schema.ts

@@ -0,0 +1,28 @@
+import { z } from "zod";
+import { AttachmentPreset } from "@shared/types";
+
+export const AttachmentsCreateSchema = z.object({
+  /** Attachment name */
+  name: z.string(),
+
+  /** Id of the document to which the Attachment belongs */
+  documentId: z.string().uuid().optional(),
+
+  /** File size of the Attachment */
+  size: z.number(),
+
+  /** Content-Type of the Attachment */
+  contentType: z.string().optional().default("application/octet-stream"),
+
+  /** Attachment type */
+  preset: z.nativeEnum(AttachmentPreset),
+});
+
+export type AttachmentCreateReq = z.infer<typeof AttachmentsCreateSchema>;
+
+export const AttachmentDeleteSchema = z.object({
+  /** Id of the attachment to be deleted */
+  id: z.string().uuid(),
+});
+
+export type AttachmentDeleteReq = z.infer<typeof AttachmentDeleteSchema>;