fix documents

frontend/assets/js/app.js

@@ -136,6 +136,11 @@ function initApp() {
     document.getElementById('teamFilter').addEventListener('change', renderTimeline);
     document.getElementById('searchEvents').addEventListener('input', renderTimeline);
     document.getElementById('saveDocument').addEventListener('click', saveDocument);
+    document.getElementById('documentModal').addEventListener('hidden.bs.modal', () => {
+        editingDocId = null;
+        window._editDocData = null;
+        document.getElementById('documentForm').reset();
+    });
     document.getElementById('docTeamFilter').addEventListener('change', renderDocuments);
     document.getElementById('docTypeFilter').addEventListener('change', renderDocuments);
     document.getElementById('searchDocs').addEventListener('input', renderDocuments);
@@ -192,7 +197,7 @@ function initApp() {
     document.querySelectorAll('[data-bs-toggle="tab"]').forEach(tab => {
         tab.addEventListener('shown.bs.tab', () => {
             if (tab.id === 'network-tab') { resizeCanvas(); renderNetwork(); }
-            if (tab.id === 'documents-tab') { renderDocuments(); }
+            if (tab.id === 'documents-tab') { loadDocuments(); }
         });
     });
 
@@ -977,7 +982,11 @@ const DOC_TYPE_LABELS = {
 };
 
 async function loadDocuments() {
-    documents = await apiFetch('documents');
+    try {
+        documents = await apiFetch('documents');
+    } catch (e) {
+        documents = [];
+    }
     populateDocTeamFilter();
     renderDocuments();
 }
@@ -995,6 +1004,7 @@ function populateDocTeamFilter() {
 
 function renderDocuments() {
     const container = document.getElementById('documentContainer');
+    if (!container) return;
     const teamFilter = document.getElementById('docTeamFilter').value;
     const typeFilter = document.getElementById('docTypeFilter').value;
     const search = document.getElementById('searchDocs').value.toLowerCase();