fix(users): align otp and profile picture api contracts

src/api/users.ts

@@ -23,7 +23,7 @@ export const sendOtp = async (mobile: string, mode: string) => {
 export const loginWithOtp = async (mobile: string, otp: string) => {
   const response = await authFetch('/api/users/otp/login/', {
     method: 'POST',
-    body: JSON.stringify({ mobile, otp })
+    body: JSON.stringify({ mobile, code: otp })
   });
   if (!response.ok) throw new Error('Failed to login with OTP');
   return response.json();
@@ -70,13 +70,11 @@ export const updateProfilePicture = async (file: File) => {
 };
 
 export const removeProfilePicture = async () => {
-  const formData = new FormData();
-  formData.append('profile_picture', ''); 
-
-  return authFetch(`/api/users/profile/picture/`, {
-    method: 'POST',
-    body: formData,
+  const response = await authFetch(`/api/users/profile/picture/`, {
+    method: 'DELETE',
   });
+  if (!response.ok) throw new Error('Failed to remove profile picture');
+  return response.json();
 };