diff --git a/.cursor/debug-378b5f.log b/.cursor/debug-378b5f.log
new file mode 100644
index 0000000..75b536d
--- /dev/null
+++ b/.cursor/debug-378b5f.log
@@ -0,0 +1 @@
+{\
diff --git a/backend/routes/textDataRoutes.js b/backend/routes/textDataRoutes.js
index 44b6dd0..62b2156 100644
--- a/backend/routes/textDataRoutes.js
+++ b/backend/routes/textDataRoutes.js
@@ -148,6 +148,9 @@ function createTextDataPOST(s3Key, formatLine, validate, validateItem = null) {
       } catch {}
       
       if (current && (ifMatch || etag) && current !== String(ifMatch || etag)) {
+        // #region agent log
+        fetch('http://192.168.10.2:7343/ingest/aa002dd6-6968-4a35-b09d-f05302d83266',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'378b5f'},body:JSON.stringify({sessionId:'378b5f',runId:'baseline',hypothesisId:'H2',location:'backend/routes/textDataRoutes.js:etag-mismatch',message:'ETag mismatch detected in text POST',data:{s3Key:String(s3Key||''),currentEtag:String(current||''),providedEtag:String(ifMatch||etag||'')},timestamp:Date.now()})}).catch(()=>{});
+        // #endregion
         const { headMeta } = require('../services/s3Service');
         const meta = await headMeta(s3Key);
         return sendError(res, 412, 'Precondition Failed: ETag mismatch', 'E_ETAG_MISMATCH', {
diff --git a/backend/server.js b/backend/server.js
index 3431fa3..8548319 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -412,12 +412,18 @@ app.post('/api/server-filters/:serverId', serverConfigsRoutes.postServerFilters)
 // === LOCKS ===
 app.get('/api/locks/:resource', (req, res) => {
   const status = getLockStatus(req.params.resource);
+  // #region agent log
+  fetch('http://192.168.10.2:7343/ingest/aa002dd6-6968-4a35-b09d-f05302d83266',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'378b5f'},body:JSON.stringify({sessionId:'378b5f',runId:'baseline',hypothesisId:'H4',location:'backend/server.js:locks-get',message:'Lock status requested',data:{resource:String(req?.params?.resource||''),locked:Boolean(status?.locked)},timestamp:Date.now()})}).catch(()=>{});
+  // #endregion
   res.json(status);
 });
 
 app.post('/api/locks/:resource', (req, res) => {
     const { owner = 'anonymous', ttlSeconds = 120 } = req.body || {};
   const result = acquireLock(req.params.resource, owner, ttlSeconds);
+  // #region agent log
+  fetch('http://192.168.10.2:7343/ingest/aa002dd6-6968-4a35-b09d-f05302d83266',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'378b5f'},body:JSON.stringify({sessionId:'378b5f',runId:'baseline',hypothesisId:'H4',location:'backend/server.js:locks-post',message:'Lock acquire attempted',data:{resource:String(req?.params?.resource||''),owner:String(owner||''),success:Boolean(result?.success),locked:Boolean(result?.locked)},timestamp:Date.now()})}).catch(()=>{});
+  // #endregion
   if (!result.success) {
     return sendError(res, 423, 'Resource is locked by another user', 'E_RESOURCE_LOCKED', {
       owner: result.owner,
@@ -429,6 +435,9 @@ app.post('/api/locks/:resource', (req, res) => {
 
 app.delete('/api/locks/:resource', (req, res) => {
   const result = releaseLock(req.params.resource);
+  // #region agent log
+  fetch('http://192.168.10.2:7343/ingest/aa002dd6-6968-4a35-b09d-f05302d83266',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'378b5f'},body:JSON.stringify({sessionId:'378b5f',runId:'baseline',hypothesisId:'H4',location:'backend/server.js:locks-delete',message:'Lock released',data:{resource:String(req?.params?.resource||''),released:Boolean(result?.released)},timestamp:Date.now()})}).catch(()=>{});
+  // #endregion
   res.json(result);
 });
 
diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index d7c31bb..05cd965 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -196,6 +196,12 @@ function MainLayout() {
     }
   }, [location.pathname, layout]);
 
+  useEffect(() => {
+    // #region agent log
+    fetch('http://192.168.10.2:7343/ingest/aa002dd6-6968-4a35-b09d-f05302d83266',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'378b5f'},body:JSON.stringify({sessionId:'378b5f',runId:'baseline',hypothesisId:'H5',location:'frontend/src/App.jsx:route-change',message:'Route changed in MainLayout',data:{pathname:String(location?.pathname||''),layout:String(layout||'')},timestamp:Date.now()})}).catch(()=>{});
+    // #endregion
+  }, [location.pathname, layout]);
+
   // Состояние для управления выпадающими меню
   const [dropdownStates, setDropdownStates] = useState({
     data: false,
diff --git a/frontend/src/components/ErrorBoundary.jsx b/frontend/src/components/ErrorBoundary.jsx
index 6f79921..eab5d78 100644
--- a/frontend/src/components/ErrorBoundary.jsx
+++ b/frontend/src/components/ErrorBoundary.jsx
@@ -23,6 +23,9 @@ class ErrorBoundary extends Component {
   componentDidCatch(error, errorInfo) {
     // Логируем ошибку
     console.error('ErrorBoundary caught an error:', error, errorInfo);
+    // #region agent log
+    fetch('http://192.168.10.2:7343/ingest/aa002dd6-6968-4a35-b09d-f05302d83266',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'378b5f'},body:JSON.stringify({sessionId:'378b5f',runId:'baseline',hypothesisId:'H3',location:'frontend/src/components/ErrorBoundary.jsx:componentDidCatch',message:'React ErrorBoundary caught error',data:{message:String(error?.message||''),name:String(error?.name||''),componentStack:String(errorInfo?.componentStack||'').slice(0,500)},timestamp:Date.now()})}).catch(()=>{});
+    // #endregion
     
     // Отправляем в мониторинг (если настроен)
     this.logErrorToService(error, errorInfo);
diff --git a/frontend/src/lib/api.js b/frontend/src/lib/api.js
index 4e7a958..7aed1c6 100644
--- a/frontend/src/lib/api.js
+++ b/frontend/src/lib/api.js
@@ -39,6 +39,9 @@ function buildCacheKey(config) {
 // Улучшенный retry interceptor с поддержкой всех методов и типов ошибок
 api.interceptors.response.use(
   (response) => {
+    // #region agent log
+    fetch('http://192.168.10.2:7343/ingest/aa002dd6-6968-4a35-b09d-f05302d83266',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'378b5f'},body:JSON.stringify({sessionId:'378b5f',runId:'baseline',hypothesisId:'H1_H2',location:'frontend/src/lib/api.js:response',message:'API response received',data:{method:String(response?.config?.method||'get').toUpperCase(),url:String(response?.config?.url||''),status:Number(response?.status||0)},timestamp:Date.now()})}).catch(()=>{});
+    // #endregion
     try {
       const method = String(response?.config?.method || 'get').toLowerCase();
       if (method === 'get') {
@@ -104,6 +107,9 @@ api.interceptors.response.use(
 api.interceptors.response.use(
   (res) => res,
   (err) => {
+    // #region agent log
+    fetch('http://192.168.10.2:7343/ingest/aa002dd6-6968-4a35-b09d-f05302d83266',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'378b5f'},body:JSON.stringify({sessionId:'378b5f',runId:'baseline',hypothesisId:'H1_H2',location:'frontend/src/lib/api.js:error',message:'API response error',data:{method:String(err?.config?.method||'get').toUpperCase(),url:String(err?.config?.url||''),status:Number(err?.response?.status||0),code:String(err?.response?.data?.code||err?.code||'')},timestamp:Date.now()})}).catch(()=>{});
+    // #endregion
     try {
       // Не показываем уведомления если это повторная попытка
       const isRetrying = err?.config?.__retryCount > 0;
@@ -135,6 +141,9 @@ api.interceptors.response.use(
 // Request интерсептор: If-Match из etag (если не задан явный заголовок)
 api.interceptors.request.use((config) => {
   try {
+    // #region agent log
+    fetch('http://192.168.10.2:7343/ingest/aa002dd6-6968-4a35-b09d-f05302d83266',{method:'POST',headers:{'Content-Type':'application/json','X-Debug-Session-Id':'378b5f'},body:JSON.stringify({sessionId:'378b5f',runId:'baseline',hypothesisId:'H1_H2',location:'frontend/src/lib/api.js:request',message:'API request started',data:{method:String(config?.method||'get').toUpperCase(),url:String(config?.url||'')},timestamp:Date.now()})}).catch(()=>{});
+    // #endregion
     // If-None-Match для GET на базе кеша
     const method = String(config.method || 'get').toLowerCase();
     if (method === 'get') {