Organize all project files into src subdirectory

- Created new src/ directory
- Copied all project files and folders to src/
- Keeps project structure organized and consolidated

src/assets/js/app.js

@@ -0,0 +1,20 @@
+const cookieBanner = document.querySelector('.cookie-banner');
+const cookieAccept = document.querySelector('[data-cookie-accept]');
+
+if (cookieBanner && cookieAccept) {
+    const consent = localStorage.getItem('gyb-cookie');
+    if (!consent) {
+        cookieBanner.classList.add('active');
+    }
+    cookieAccept.addEventListener('click', () => {
+        localStorage.setItem('gyb-cookie', 'accepted');
+        cookieBanner.classList.remove('active');
+    });
+}
+
+const filterForm = document.querySelector('[data-filter-form]');
+if (filterForm) {
+    filterForm.addEventListener('input', () => {
+        filterForm.submit();
+    });
+}