test(bruno): update API collections for consolidated endpoints

Add collections for Delete User, Reset User Password, and Update User
endpoints. Remove obsolete collections for individual profile update
operations. Update Update Profile collection to reflect new consolidated
API structure.

bruno/user/admin/Delete User.yml

@@ -0,0 +1,25 @@
+info:
+  name: Delete User
+  type: http
+  seq: 12
+http:
+  method: DELETE
+  url: '{{base_url}}/api/auth/profile/{{user_id}}'
+  auth: inherit
+
+docs: |-
+  ## Delete User Account
+    
+    Delete a user account. Users can delete their own account, admins can delete any user.
+    
+    **Method:** DELETE
+    
+    **Endpoint:** /api/auth/profile (self) or /api/auth/profile/:id (admin)
+    
+    **Authentication:** Required (Bearer token)
+    
+    **Status Codes:**
+    - 200: Success
+    - 400: Cannot delete the last admin
+    - 403: Not an admin (when trying to delete another user)
+    - 404: User not found