diff --git a/public/userarea/class/VisualLimsApiClient.class.php b/public/userarea/class/VisualLimsApiClient.class.php
index 369d5857..a040e851 100644
--- a/public/userarea/class/VisualLimsApiClient.class.php
+++ b/public/userarea/class/VisualLimsApiClient.class.php
@@ -43,6 +43,7 @@ class VisualLimsApiClient
     {
         $ch = curl_init("{$this->baseUrl}/api/authentication/authenticate");
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_USERAGENT, 'VisualLims-Client/1.0');
         curl_setopt($ch, CURLOPT_POST, true);
         curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([
             'Username' => $this->username,
@@ -105,6 +106,7 @@ class VisualLimsApiClient
 
         $ch = curl_init($url);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_USERAGENT, 'VisualLims-Client/1.0');
         curl_setopt($ch, CURLOPT_HTTPHEADER, [
             "Authorization: Bearer {$token}",
             "Accept: application/json"
@@ -144,6 +146,7 @@ class VisualLimsApiClient
 
         $ch = curl_init($url);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_USERAGENT, 'VisualLims-Client/1.0');
         curl_setopt($ch, CURLOPT_POST, true);
         curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
         curl_setopt($ch, CURLOPT_HTTPHEADER, [
@@ -177,6 +180,7 @@ class VisualLimsApiClient
 
         $ch = curl_init($url);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_USERAGENT, 'VisualLims-Client/1.0');
         curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PATCH");
         curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
         curl_setopt($ch, CURLOPT_HTTPHEADER, [
@@ -225,6 +229,7 @@ class VisualLimsApiClient
 
         $ch = curl_init($url);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_USERAGENT, 'VisualLims-Client/1.0');
         curl_setopt($ch, CURLOPT_POST, true);
         curl_setopt($ch, CURLOPT_POSTFIELDS, $payload);
         curl_setopt($ch, CURLOPT_HTTPHEADER, [
@@ -268,6 +273,7 @@ class VisualLimsApiClient
 
         $ch = curl_init($url);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_USERAGENT, 'VisualLims-Client/1.0');
         curl_setopt($ch, CURLOPT_HTTPHEADER, [
             "Authorization: Bearer {$token}",
             "Accept: */*"
diff --git a/public/userarea/export_to_lims.js b/public/userarea/export_to_lims.js
index cf28fad0..0f043bb3 100644
--- a/public/userarea/export_to_lims.js
+++ b/public/userarea/export_to_lims.js
@@ -43,17 +43,23 @@ document.addEventListener("DOMContentLoaded", () => {
      * Clear all validation-error highlights from the grid.
      */
     function clearValidationErrors() {
-        document.querySelectorAll(".grid-cell.validation-error").forEach((cell) => {
-            cell.classList.remove("validation-error");
-            cell.querySelectorAll(".input-validation-error").forEach((el) => {
-                el.classList.remove("input-validation-error");
+        document
+            .querySelectorAll(".grid-cell.validation-error")
+            .forEach((cell) => {
+                cell.classList.remove("validation-error");
+                cell.querySelectorAll(".input-validation-error").forEach(
+                    (el) => {
+                        el.classList.remove("input-validation-error");
+                    },
+                );
+                const tooltip = cell.querySelector(".validation-tooltip");
+                if (tooltip) tooltip.remove();
+            });
+        document
+            .querySelectorAll(".grid-row.validation-row-error")
+            .forEach((row) => {
+                row.classList.remove("validation-row-error");
             });
-            const tooltip = cell.querySelector(".validation-tooltip");
-            if (tooltip) tooltip.remove();
-        });
-        document.querySelectorAll(".grid-row.validation-row-error").forEach((row) => {
-            row.classList.remove("validation-row-error");
-        });
         // Also clear batch-row-error that came from validation
         clearAllRowErrors();
     }
@@ -90,16 +96,24 @@ document.addEventListener("DOMContentLoaded", () => {
                     }
                 });
                 if (targetIndex) {
-                    const rowIndex = row.querySelector(".grid-cell[data-row]")?.getAttribute("data-row");
+                    const rowIndex = row
+                        .querySelector(".grid-cell[data-row]")
+                        ?.getAttribute("data-row");
                     if (rowIndex !== null) {
-                        cell = row.querySelector(`.grid-cell[data-row="${rowIndex}"][data-index="${targetIndex}"]`);
+                        cell = row.querySelector(
+                            `.grid-cell[data-row="${rowIndex}"][data-index="${targetIndex}"]`,
+                        );
                     }
                 }
             } else {
                 // Direct data-col match
-                const rowIndex = row.querySelector(".grid-cell[data-row]")?.getAttribute("data-row");
+                const rowIndex = row
+                    .querySelector(".grid-cell[data-row]")
+                    ?.getAttribute("data-row");
                 if (rowIndex !== null) {
-                    cell = row.querySelector(`.grid-cell[data-col="${err.field}"][data-row="${rowIndex}"]`);
+                    cell = row.querySelector(
+                        `.grid-cell[data-col="${err.field}"][data-row="${rowIndex}"]`,
+                    );
                 }
             }
 
@@ -194,8 +208,9 @@ document.addEventListener("DOMContentLoaded", () => {
      * Show the result of a single export in the response modal.
      */
     function showExportResult(data) {
-        const responseModalElement =
-            document.getElementById("exportResponseModal");
+        const responseModalElement = document.getElementById(
+            "exportResponseModal",
+        );
         if (!responseModalElement) {
             alert("Errore: Modale di risposta non trovato");
             return;
@@ -276,20 +291,28 @@ document.addEventListener("DOMContentLoaded", () => {
             errorEl.className = "batch-error-msg";
             errorEl.textContent = "⚠ Errore — clicca per dettagli";
             errorEl.addEventListener("click", () => {
-                document.getElementById("exportResponseMessage").innerHTML = message.replace(/\n/g, "<br>");
-                document.getElementById("exportResponseModalLabel").textContent = "Errore Validazione (id: " + iddatadb + ")";
-                new bootstrap.Modal(document.getElementById("exportResponseModal"), { keyboard: false }).show();
+                document.getElementById("exportResponseMessage").innerHTML =
+                    message.replace(/\n/g, "<br>");
+                document.getElementById(
+                    "exportResponseModalLabel",
+                ).textContent = "Errore Validazione (id: " + iddatadb + ")";
+                new bootstrap.Modal(
+                    document.getElementById("exportResponseModal"),
+                    { keyboard: false },
+                ).show();
             });
             btnCell.appendChild(errorEl);
         }
     }
 
     function clearAllRowErrors() {
-        document.querySelectorAll(".grid-row.batch-row-error").forEach((row) => {
-            row.classList.remove("batch-row-error");
-            const msg = row.querySelector(".batch-error-msg");
-            if (msg) msg.remove();
-        });
+        document
+            .querySelectorAll(".grid-row.batch-row-error")
+            .forEach((row) => {
+                row.classList.remove("batch-row-error");
+                const msg = row.querySelector(".batch-error-msg");
+                if (msg) msg.remove();
+            });
     }
 
     function disableAllRowButtons() {
@@ -333,15 +356,23 @@ document.addEventListener("DOMContentLoaded", () => {
         // Show validating state on the row
         setRowExporting(gridRow, true);
         const spinner = gridRow.querySelector(".batch-row-spinner");
-        if (spinner) spinner.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Validating...';
+        if (spinner)
+            spinner.innerHTML =
+                '<i class="fas fa-spinner fa-spin"></i> Validating...';
 
-        validateRows([{ iddatadb: parseInt(iddatadb), index: parseInt(rowIndex) }])
+        validateRows([
+            { iddatadb: parseInt(iddatadb), index: parseInt(rowIndex) },
+        ])
             .then((validationData) => {
                 setRowExporting(gridRow, false);
                 gridRow.classList.remove("batch-disabled");
 
                 if (!validationData.success) {
-                    showExportResult({ success: false, message: validationData.message || "Errore di validazione" });
+                    showExportResult({
+                        success: false,
+                        message:
+                            validationData.message || "Errore di validazione",
+                    });
                     return;
                 }
 
@@ -360,7 +391,10 @@ document.addEventListener("DOMContentLoaded", () => {
                 gridRow.classList.remove("batch-disabled");
 
                 console.error("Validation error:", error);
-                showExportResult({ success: false, message: "Errore di validazione: " + error.message });
+                showExportResult({
+                    success: false,
+                    message: "Errore di validazione: " + error.message,
+                });
             });
     }
 
@@ -402,7 +436,11 @@ document.addEventListener("DOMContentLoaded", () => {
                 gridRow.classList.remove("batch-disabled");
 
                 if (!data.success) {
-                    showRowError(gridRow, iddatadb, data.message || "Errore sconosciuto");
+                    showRowError(
+                        gridRow,
+                        iddatadb,
+                        data.message || "Errore sconosciuto",
+                    );
                 }
                 showExportResult(data);
             } catch (error) {
@@ -577,8 +615,9 @@ document.addEventListener("DOMContentLoaded", () => {
                     document.getElementById("exportResponseMessage").innerHTML =
                         `Nessuna riga valida per l'esportazione.<br>` +
                         `<strong>${invalidCount}</strong> righe con errori di validazione.`;
-                    document.getElementById("exportResponseModalLabel").textContent =
-                        "Validazione Fallita";
+                    document.getElementById(
+                        "exportResponseModalLabel",
+                    ).textContent = "Validazione Fallita";
                     new bootstrap.Modal(
                         document.getElementById("exportResponseModal"),
                         { keyboard: false },
@@ -595,27 +634,38 @@ document.addEventListener("DOMContentLoaded", () => {
                 if (invalidCount > 0) {
                     countText += ` (${invalidCount} escluse per errori di validazione)`;
                 }
-                document.getElementById("exportBatchCount").textContent = countText;
+                document.getElementById("exportBatchCount").textContent =
+                    countText;
                 confirmModal.show();
 
-                const confirmBtn = document.getElementById("exportBatchConfirmBtn");
+                const confirmBtn = document.getElementById(
+                    "exportBatchConfirmBtn",
+                );
                 if (pendingBatchConfirmHandler) {
-                    confirmBtn.removeEventListener("click", pendingBatchConfirmHandler);
+                    confirmBtn.removeEventListener(
+                        "click",
+                        pendingBatchConfirmHandler,
+                    );
                 }
                 pendingBatchConfirmHandler = () => {
                     pendingBatchConfirmHandler = null;
                     confirmModal.hide();
                     startBatchExport(validRows);
                 };
-                confirmBtn.addEventListener("click", pendingBatchConfirmHandler, { once: true });
+                confirmBtn.addEventListener(
+                    "click",
+                    pendingBatchConfirmHandler,
+                    { once: true },
+                );
             })
             .catch((error) => {
                 showValidationSpinner(false);
                 console.error("Batch validation error:", error);
                 document.getElementById("exportResponseMessage").textContent =
                     "Errore di validazione: " + error.message;
-                document.getElementById("exportResponseModalLabel").textContent =
-                    "Errore Validazione";
+                document.getElementById(
+                    "exportResponseModalLabel",
+                ).textContent = "Errore Validazione";
                 new bootstrap.Modal(
                     document.getElementById("exportResponseModal"),
                     { keyboard: false },
@@ -635,54 +685,51 @@ document.addEventListener("DOMContentLoaded", () => {
             );
             unsavedModal.show();
 
-            document
-                .getElementById("batchSaveAndExportBtn")
-                .addEventListener(
-                    "click",
-                    () => {
-                        unsavedModal.hide();
-                        // Trigger Save All, then proceed
-                        const saveAllEl =
-                            document.querySelector(".save-all-btn");
-                        if (!saveAllEl) return;
+            document.getElementById("batchSaveAndExportBtn").addEventListener(
+                "click",
+                () => {
+                    unsavedModal.hide();
+                    // Trigger Save All, then proceed
+                    const saveAllEl = document.querySelector(".save-all-btn");
+                    if (!saveAllEl) return;
 
-                        // Watch for all .cell-changed to disappear
-                        const observer = new MutationObserver(() => {
-                            if (!hasUnsavedChanges()) {
-                                observer.disconnect();
-                                const eligibleRows = collectEligibleRows();
-                                if (eligibleRows.length === 0) {
+                    // Watch for all .cell-changed to disappear
+                    const observer = new MutationObserver(() => {
+                        if (!hasUnsavedChanges()) {
+                            observer.disconnect();
+                            const eligibleRows = collectEligibleRows();
+                            if (eligibleRows.length === 0) {
+                                document.getElementById(
+                                    "exportResponseMessage",
+                                ).textContent =
+                                    "Tutte le righe sono già state esportate al LIMS.";
+                                document.getElementById(
+                                    "exportResponseModalLabel",
+                                ).textContent = "Export All";
+                                new bootstrap.Modal(
                                     document.getElementById(
-                                        "exportResponseMessage",
-                                    ).textContent =
-                                        "Tutte le righe sono già state esportate al LIMS.";
-                                    document.getElementById(
-                                        "exportResponseModalLabel",
-                                    ).textContent = "Export All";
-                                    new bootstrap.Modal(
-                                        document.getElementById(
-                                            "exportResponseModal",
-                                        ),
-                                        { keyboard: false },
-                                    ).show();
-                                    return;
-                                }
-                                showBatchConfirm(eligibleRows);
+                                        "exportResponseModal",
+                                    ),
+                                    { keyboard: false },
+                                ).show();
+                                return;
                             }
-                        });
-                        observer.observe(
-                            document.querySelector(".grid-container"),
-                            {
-                                subtree: true,
-                                attributes: true,
-                                attributeFilter: ["class"],
-                            },
-                        );
+                            showBatchConfirm(eligibleRows);
+                        }
+                    });
+                    observer.observe(
+                        document.querySelector(".grid-container"),
+                        {
+                            subtree: true,
+                            attributes: true,
+                            attributeFilter: ["class"],
+                        },
+                    );
 
-                        saveAllEl.click();
-                    },
-                    { once: true },
-                );
+                    saveAllEl.click();
+                },
+                { once: true },
+            );
             return;
         }
 
@@ -754,7 +801,11 @@ document.addEventListener("DOMContentLoaded", () => {
                         succeeded++;
                     } else {
                         failed++;
-                        showRowError(row, iddatadb, data.message || "Errore sconosciuto");
+                        showRowError(
+                            row,
+                            iddatadb,
+                            data.message || "Errore sconosciuto",
+                        );
                     }
                 } catch (error) {
                     processed++;
@@ -794,7 +845,9 @@ document.addEventListener("DOMContentLoaded", () => {
             const modalEl = document.getElementById("exportResponseModal");
             const modal = new bootstrap.Modal(modalEl, { keyboard: false });
             modal.show();
-            modalEl.addEventListener("hidden.bs.modal", cleanupBackdrop, { once: true });
+            modalEl.addEventListener("hidden.bs.modal", cleanupBackdrop, {
+                once: true,
+            });
         })();
     }
 });