add hourly check for upload queue issues, restore old note coloring

app/assets/stylesheets/specific/notes.css.scss

@@ -5,7 +5,7 @@ div#note-container {
   div.note-body {
     position: absolute;
     border: 1px solid black;
-    background: white;
+    background: #FFE;
     min-width: 10px;
     min-height: 1em;
     line-height: normal;
@@ -48,7 +48,7 @@ div#note-container {
     
     div.note-box-inner-border {
       border: 1px solid black;
-      background: white;
+      background: #FFE;
     }
     
     div.note-box-inner-border.unsaved {

app/logical/upload_error_checker.rb

@@ -0,0 +1,20 @@
+#!/usr/bin/env ruby
+
+require 'mail'
+
+class UploadErrorChecker
+  def check!
+    count = Upload.where("status like 'error%' and created_at >= ?", 1.hour.ago).count
+    if count > 5
+      mail = Mail.new do
+        from "webmaster@danbooru.donmai.us"
+        to "r888888888@gmail.com"
+        subject "[danbooru] Upload error count at #{count}"
+        body "nt"
+      end
+      mail.delivery_method :sendmail
+      mail.deliver
+    end
+  end
+end
+