Add 1GB storage cap with staff bypass (#2729)

Re-applies the storage limit from #2713 (reverted in #2715) with an
exception for staff identities so our own account isn't blocked.

app/assets/stylesheets/card-perma.css

@@ -543,4 +543,12 @@
       }
     }
   }
+
+  .card-perma__account-limit-message {
+    background-color: var(--color-canvas);
+    border: 2px solid var(--color-container);
+    border-radius: 4px;
+    margin-block-start: calc(var(--padding-block) / -2);
+    padding: 1ch 2ch;
+  }
 }

app/assets/stylesheets/comments.css

@@ -220,4 +220,12 @@
       display: none;
     }
   }
+
+  .comment-by-system--account-limit {
+    --stripe-color: oklch(var(--lch-blue-lightest));
+
+    .comment__content {
+      padding: 3ch;
+    }
+  }
 }

app/views/cards/_messages.html.erb

@@ -1,7 +1,11 @@
 <%= messages_tag(card) do %>
   <% if card.published? %>
     <%= render partial: "cards/comments/comment", collection: card.comments.preloaded.chronologically, cached: true %>
-    <%= render "cards/comments/new", card: card %>
+    <% if Fizzy.saas? %>
+      <%= render "cards/comments/saas/new", card: card %>
+    <% else %>
+      <%= render "cards/comments/new", card: card %>
+    <% end %>
 
     <%= render "cards/comments/watchers", card: card %>
   <% end %>

app/views/cards/container/footer/_create.html.erb

@@ -13,5 +13,7 @@
       <span>Create and add another</span>
     <% end %>
   </div>
+
+  <%= render "cards/container/footer/saas/storage_limit_notice" if Fizzy.saas? %>
 </div>
 

app/views/cards/drafts/_container.html.erb

@@ -26,5 +26,9 @@
     </div>
   <% end %>
 
-  <%= render "cards/container/footer/create", card: card %>
+  <% if Fizzy.saas? %>
+    <%= render "cards/container/footer/saas/create", card: card %>
+  <% else %>
+    <%= render "cards/container/footer/create", card: card %>
+  <% end %>
 </section>