fix: исправить ошибки JavaScript в современном интерфейсе

- Добавлены проверки на null для отсутствующих элементов
- Исправлена ошибка 'Cannot set properties of null'
- Добавлено логирование для отладки загрузки проектов и сервисов
- Улучшена обработка ошибок в fetchProjects и fetchServices
- Исправлена работа с layoutBadge, aggregate и groupBtn
- Добавлены проверки существования элементов перед их использованием

Автор: Сергей Антропов
Сайт: https://devops.org.ru

templates/index.html

@@ -601,11 +601,11 @@ const els = {
   lvlInfo: document.getElementById('lvlInfo'),
   lvlWarn: document.getElementById('lvlWarn'),
   lvlErr: document.getElementById('lvlErr'),
-  layoutBadge: document.getElementById('layoutBadge'),
-  aggregate: document.getElementById('aggregate'),
+  layoutBadge: document.getElementById('layoutBadge') || { textContent: '' },
+  aggregate: document.getElementById('aggregate') || { checked: false },
   themeSwitch: document.getElementById('themeSwitch'),
   copyFab: document.getElementById('copyFab'),
-  groupBtn: document.getElementById('groupBtn'),
+  groupBtn: document.getElementById('groupBtn') || { onclick: null },
   
   // New modern elements
   containerList: document.getElementById('containerList'),
@@ -792,18 +792,27 @@ function buildTabs(){
 
 function setLayout(cls){
   state.layout = cls;
+  if (els.layoutBadge) {
     els.layoutBadge.textContent = 'view: ' + (cls==='tabs'?'tabs':cls);
+  }
   els.grid.className = cls==='tabs' ? 'grid-1' : (cls==='grid2'?'grid-2':cls==='grid3'?'grid-3':'grid-4');
 }
 
 async function fetchProjects(){
+  try {
+    console.log('Fetching projects...');
     const url = new URL(location.origin + '/api/projects');
     const res = await fetch(url);
-  if (!res.ok){ console.error('Failed to fetch projects'); return; }
+    if (!res.ok){ 
+      console.error('Failed to fetch projects:', res.status, res.statusText); 
+      return; 
+    }
     const projects = await res.json();
+    console.log('Projects loaded:', projects);
     
     // Обновляем селектор проектов
     const select = els.projectSelect;
+    if (select) {
       select.innerHTML = '<option value="all">All Projects</option>';
       projects.forEach(project => {
         const option = document.createElement('option');
@@ -816,11 +825,17 @@ async function fetchProjects(){
       if (localStorage.lb_project && projects.includes(localStorage.lb_project)) {
         select.value = localStorage.lb_project;
       }
+    }
+  } catch (error) {
+    console.error('Error fetching projects:', error);
+  }
 }
 
 async function fetchServices(){
+  try {
+    console.log('Fetching services...');
     const url = new URL(location.origin + '/api/services');
-  const selectedProject = els.projectSelect.value;
+    const selectedProject = els.projectSelect ? els.projectSelect.value : 'all';
     
     if (selectedProject && selectedProject !== 'all') {
       url.searchParams.set('projects', selectedProject);
@@ -830,13 +845,25 @@ async function fetchServices(){
     }
     
     const res = await fetch(url);
-  if (!res.ok){ alert('Auth failed (HTTP)'); return; }
+    if (!res.ok){ 
+      console.error('Auth failed (HTTP):', res.status, res.statusText);
+      alert('Auth failed (HTTP)'); 
+      return; 
+    }
     const data = await res.json();
+    console.log('Services loaded:', data);
     state.services = data;
     const pj = selectedProject === 'all' ? 'all' : selectedProject;
+    
+    if (els.projectBadge) {
       els.projectBadge.innerHTML = 'project: <em>'+escapeHtml(pj)+'</em>';
+    }
+    
     buildTabs();
     if (!state.current && state.services.length) switchToSingle(state.services[0]);
+  } catch (error) {
+    console.error('Error fetching services:', error);
+  }
 }
 
 function wsUrl(containerId, service, project){
@@ -966,8 +993,12 @@ function switchToSingle(svc){
   for (const p of [...els.grid.children]) if (p!==panel) p.remove();
   
   // Modern interface updates
+  if (els.logTitle) {
     els.logTitle.textContent = `${svc.name} (${svc.service || svc.name})`;
+  }
+  if (els.logContent) {
     els.logContent.textContent = 'Connecting...';
+  }
   
   // Update active state in container list
   document.querySelectorAll('.container-item').forEach(item => {
@@ -1090,14 +1121,16 @@ function openFanGroup(services){
   updateIdFiltersBar();
 }
 
-els.groupBtn.onclick = ()=>{
+if (els.groupBtn && els.groupBtn.onclick !== null) {
+  els.groupBtn.onclick = ()=>{
     const list = state.services.map(s=> `${s.service}`).filter((v,i,a)=> a.indexOf(v)===i).join(', ');
     const ans = prompt('Введите имена сервисов через запятую:\n'+list);
     if (ans){
       const services = ans.split(',').map(x=>x.trim()).filter(Boolean);
       if (services.length) openFanGroup(services);
     }
-};
+  };
+}
 
 // Controls
 els.clearBtn.onclick = ()=> Object.values(state.open).forEach(o=> o.logEl.textContent='');
@@ -1156,6 +1189,16 @@ window.addEventListener('keydown', (e)=>{
 
 // Инициализация
 (async function init() {
+  console.log('Initializing LogBoard+...');
+  console.log('Elements found:', {
+    projectSelect: !!els.projectSelect,
+    containerList: !!els.containerList,
+    logTitle: !!els.logTitle,
+    logContent: !!els.logContent,
+    mobileToggle: !!els.mobileToggle,
+    themeSwitch: !!els.themeSwitch
+  });
+  
   await fetchProjects();
   await fetchServices();
 })();