feat: deselect all button, static serving for production, cloudflare tunnel setup

src/main.js

@@ -419,7 +419,7 @@ function initSearch() {
 
 // Presets
 function initPresets() {
-  document.querySelectorAll('.preset-btn').forEach(btn => {
+  document.querySelectorAll('.preset-btn[data-preset]').forEach(btn => {
     btn.addEventListener('click', () => {
       const preset = presets[btn.dataset.preset];
       if (!preset) return;
@@ -433,6 +433,15 @@ function initPresets() {
       updateUrlState();
     });
   });
+
+  document.getElementById('deselect-all-btn').addEventListener('click', () => {
+    state.selected.clear();
+    renderAppGrid();
+    checkDependencies();
+    checkPortConflicts();
+    updatePreview();
+    updateUrlState();
+  });
 }
 
 // Mode switching (builder vs analyser vs gallery)

src/style.css

@@ -202,6 +202,8 @@ body {
   transition: all 0.2s ease;
 }
 .preset-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); }
+.preset-btn.preset-clear { border-color: rgba(239,68,68,0.3); color: var(--danger); }
+.preset-btn.preset-clear:hover { background: rgba(239,68,68,0.1); border-color: var(--danger); }
 .dependency-warnings, .port-conflicts { margin-bottom: 1rem; }
 .dep-warning, .port-conflict {
   background: rgba(245,158,11,0.06);