Add debug Remove entry, Show more auto-picker, and update docs.

DELETE /api/paintings/:id removes works and image files with gallery refresh and catalog navigation; Show more opens the search modal on load; documentation updated for migrate schema and debug workflow.

Co-authored-by: Cursor <cursoragent@cursor.com>

client/src/pages/HomePage.css

@@ -80,6 +80,42 @@
   color: #e8a040;
 }
 
+.debug-show-more-toggle {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 6px 12px;
+  border-radius: 6px;
+  border: 1px solid rgba(201, 169, 110, 0.35);
+  background: rgba(15, 15, 26, 0.85);
+  color: rgba(201, 169, 110, 0.75);
+  font-size: 12px;
+  font-family: ui-monospace, 'Cascadia Code', monospace;
+  cursor: pointer;
+  transition: background 0.2s, border-color 0.2s, color 0.2s;
+  user-select: none;
+}
+
+.debug-show-more-toggle input {
+  accent-color: #e8a040;
+  cursor: pointer;
+}
+
+.debug-show-more-toggle:hover {
+  border-color: #c9a96e;
+  color: #e8d5b5;
+}
+
+.debug-show-more-toggle-active {
+  border-color: #e8a040;
+  background: rgba(232, 160, 64, 0.1);
+  color: #e8a040;
+}
+
+.debug-show-more-toggle-muted {
+  opacity: 0.55;
+}
+
 .checkup-link-btn {
   text-decoration: none;
 }