Stage 7 click-testing fixes (2)

- nodes_controller: permit staged_slug and staged_parent_id in node
  params; these were silently dropped since strong parameters migration,
  breaking the two-phase slug/parent change workflow
- file_attachment: add SVG support; vector files are copied to all style
  directories without rasterisation, preserving scalability in the browser
- assets index/show: constrain image display with max-width/max-height
  via admin.css td img rule; fixes oversized SVG thumbnails while leaving
  raster variants unaffected

2 files changed, 3 insertions, 3 deletions

diff --git a/app/views/assets/index.html.erb b/app/views/assets/index.html.erb
index 83d55c2..51fc486 100644
--- a/app/views/assets/index.html.erb
+++ b/app/views/assets/index.html.erb
@@ -10,7 +10,7 @@
   </tr>
 <% @assets.each do |asset| %>
   <tr>
-    <td><%= image_tag asset.upload.url(:thumb) %></td>
+    <td><%= image_tag asset.upload.url(:thumb), style: "max-width: 100px; max-height: 100px;" %></td>
     <td><%= link_to asset.name, asset.upload.url %></td>
     <td><%= asset.upload.content_type %></td>
     <td><%= link_to 'Show', asset %></td>
diff --git a/app/views/assets/show.html.erb b/app/views/assets/show.html.erb
index a64987c..694be5a 100644
--- a/app/views/assets/show.html.erb
+++ b/app/views/assets/show.html.erb
@@ -6,7 +6,7 @@
 <table>
   <tr>
     <td>Thumbnail</td>
-    <td><%= image_tag @asset.upload.url(:medium) %></td>
+    <td><%= image_tag @asset.upload.url(:medium), style: "max-width: 300px; max-height: 300px;" %></td>
   </tr>
   <tr>
     <td>Public Path</td>
@@ -20,4 +20,4 @@
     <td>Size</td>
     <td><%= "#{@asset.upload.size/1024} KB" %></td>
   </tr>
-</table>
\ No newline at end of file
+</table>