Add Trash affordances: cockpit, listing, dashboard entry

nodes#show gains a Trash section on trashed nodes: provenance from
the trash entry, a restore form whose parent picker pre-fills the
old parent while it still lives, and permanent deletion. A
Move-to-Trash button joins the status actions on living nodes.
nodes#trashed lists trashed subtree roots with weight, provenance,
and deletion; the dashboard housekeeping row links to it, and
trash/destroy redirect there.

Deletion from Trash now removes the whole subtree, deepest first,
each node through a real destroy! so every per-node cascade runs --
amending the never-recursive rule for this one sanctioned path
(both confirms state the count; the root entry carries
destroyed_descendants). Bare Node#destroy still refuses children.

1 files changed, 35 insertions, 0 deletions

diff --git a/public/stylesheets/admin.css b/public/stylesheets/admin.css
index 82963dd..88fd84b 100644
--- a/public/stylesheets/admin.css
+++ b/public/stylesheets/admin.css
@@ -884,6 +884,10 @@ form.button_to button[type="submit"] {
   margin-top: -5px;
 }
 
+.aligned_action_row .action_button.action_button_no_margin_top {
+  margin-top: 0;
+}
+
 /* ============================================================
    Page editor / metadata forms
    ============================================================ */
@@ -1539,3 +1543,34 @@ div#image_browser ul li {
   font-size: smaller;
   color: #777;
 }
+
+/* ============================================================
+   Trash section
+   ============================================================ */
+
+.restore_form {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.restore_picker {
+  position: relative;
+}
+
+.restore_picker input[type=text] {
+  width: 22em;
+}
+
+.restore_picker .search_results {
+  position: absolute;
+  top: 100%;
+  left: 0;
+  right: 0;
+  z-index: 10;
+  background: #fff;
+  border: 1px solid #989898;
+  border-top: none;
+  max-height: 20em;
+  overflow-y: auto;
+}