add api headermenu and crud management

public/js/custom-modal.js

@@ -0,0 +1,31 @@
+/**
+ * Custom Modal Utilities
+ */
+
+// Global function to clean up any stuck modal backdrops
+window.forceCleanupModals = function() {
+    document.body.classList.remove('modal-open');
+    document.body.style.overflow = '';
+    document.body.style.paddingRight = '';
+    const backdrops = document.querySelectorAll('.modal-backdrop, .overlay, .loading');
+    if (backdrops.length > 0) {
+        console.warn('Cleanup: Removing backdrops:', backdrops.length);
+        backdrops.forEach(el => el.remove());
+    }
+};
+
+// Auto-cleanup on hide
+document.addEventListener('hidden.bs.modal', () => {
+    setTimeout(forceCleanupModals, 100);
+});
+
+// Watchdog
+setInterval(() => {
+    if (document.querySelectorAll('.modal.show').length === 0) {
+        if (document.querySelectorAll('.modal-backdrop').length > 0) {
+            forceCleanupModals();
+        }
+    }
+}, 2000);
+
+window.addEventListener('load', forceCleanupModals);