MastoAPI: Add user notes on accounts

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

test/pleroma/web/mastodon_api/controllers/account_controller_test.exs

@@ -1776,4 +1776,18 @@ defmodule Pleroma.Web.MastodonAPI.AccountControllerTest do
 
     assert [%{"id" => ^id2}] = result
   end
+
+  test "create a note on a user" do
+    %{conn: conn} = oauth_access(["write:accounts"])
+    other_user = insert(:user)
+
+    ret_conn =
+      conn
+      |> put_req_header("content-type", "application/json")
+      |> post("/api/v1/accounts/#{other_user.id}/note", %{
+        "comment" => "Example note"
+      })
+
+    assert %{"note" => "Example note"} = json_response_and_validate_schema(ret_conn, 200)
+  end
 end

test/pleroma/web/mastodon_api/views/account_view_test.exs

@@ -271,7 +271,8 @@ defmodule Pleroma.Web.MastodonAPI.AccountViewTest do
       requested: false,
       domain_blocking: false,
       showing_reblogs: true,
-      endorsed: false
+      endorsed: false,
+      note: ""
     }
 
     test "represent a relationship for the following and followed user" do