added endpoints for profile and feed

code/backend/src/schemas/feedSchemas.ts

@@ -0,0 +1,15 @@
+import { string, z } from "zod";
+
+export const feedQuerySchema = z.object({
+  createdAt: z.string().datetime().optional(),
+  limit: z
+    .string()
+    .transform((val) => parseInt(val, 10))
+    .refine((num) => num > 0 && num <= 30, {
+      message: "Limit must be between 1 and 30",
+    })
+    .optional(),
+});
+export const updateBioSchema = z.object({
+  bio: z.string(),
+});