Add custom slugs, restore UI, UTM builder, and CLI link tools

templates/pages.html

@@ -36,12 +36,17 @@
                 </div>
             </div>
 
-            <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;">
+            <div style="display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem;">
                 <div class="form-group">
                     <label for="code">Short Code (4-Hex, optional)</label>
                     <input type="text" id="code" name="code" class="form-input" placeholder="e.g. a1b2" pattern="[0-9a-fA-F]{4}" title="Must be exactly 4 hex characters">
                 </div>
 
+                <div class="form-group">
+                    <label for="custom_slug">Custom Slug (optional)</label>
+                    <input type="text" id="custom_slug" name="custom_slug" class="form-input" placeholder="e.g. !my-page" pattern="![a-z0-9\-_]{1,24}" title="Must start with ! followed by 1-24 characters (a-z, 0-9, -, _)">
+                </div>
+
                 <div class="form-group">
                     <label for="state">Publish State</label>
                     <select id="state" name="state">