diff --git a/api/app.pl b/api/app.pl
index 79b8878..96e170f 100644
--- a/api/app.pl
+++ b/api/app.pl
@@ -3,6 +3,7 @@ use strict;
 use Dancer2;
 use Dancer2::Plugin::Database;
 use Data::Dumper;
+use JSON ();
 use SQL::SplitStatement;
 use HTTP::Lite;
 
@@ -164,8 +165,8 @@ post '/api/v1/task/:task/complete' => sub {
     # Accept both JSON body and form-encoded data for assign_key/results.
     my ($assign_key, $results);
     my $ct = request_header('Content-Type') || '';
-    if ($ct eq 'application/json') {
-        my $body = decode_json(request->body());
+    if ($ct =~ m{application/json}i) {
+        my $body = JSON::decode_json(request->body());
         $assign_key = $body->{assign_key};
         $results    = $body->{results};
     } else {
@@ -195,7 +196,7 @@ post '/api/v1/task/:task/complete' => sub {
     }
 
     # Update the task as completed (store results as JSON text for MariaDB)
-    my $results_json = defined $results ? encode_json($results) : 'null';
+    my $results_json = defined $results ? JSON::encode_json($results) : 'null';
     my $update_sth = database->prepare("UPDATE tasks SET status='COMPLETED', results=?, updated_at=NOW() WHERE id=?");
     $update_sth->execute($results_json, $task_id);
     if($update_sth->rows == 0) {
@@ -245,4 +246,4 @@ sub max {
 
 sub min {
     return (sort { $a <=> $b } @_)[0];
-}
\ No newline at end of file
+}
diff --git a/loadmodel.sh b/loadmodel.sh
new file mode 100755
index 0000000..1b7deb6
--- /dev/null
+++ b/loadmodel.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+curl http://10.0.1.7:11434/api/generate -d '{
+  "model": "qwen3.6:35b-a3b",
+  "keep_alive": "60m"
+}'
diff --git a/ui/app.py b/ui/app.py
index e723354..7042024 100644
--- a/ui/app.py
+++ b/ui/app.py
@@ -310,10 +310,17 @@ def api_submit_review(task_id):
         return jsonify({"error": "verdict is required"}), 400
 
     try:
-        result = api_post(f"task/{task_id}/complete", {
-            "results": {"reviewer_verdict": verdict},
+        api_response = api_post(f"task/{task_id}/complete", {
+            "results": {
+                "review_verdict": verdict,
+            },
+        })
+        return jsonify({
+            "status": "completed",
+            "task_id": task_id,
+            "verdict": verdict,
+            "api_response": api_response,
         })
-        return jsonify({"status": "completed", "task_id": task_id, "verdict": verdict})
     except requests.RequestException as exc:
         return jsonify({"error": f"API error: {exc}"}), 503
 
@@ -445,6 +452,7 @@ _REVIEW_TEMPLATE = """
         .actions{display:flex;gap:12px;margin-top:14px}
         .action-btn{flex:1;padding:14px;border:2px solid #dee2e6;border-radius:8px;background:#fff;cursor:pointer;font-size:15px;font-weight:600;transition:all .15s;text-align:center}
         .action-btn:hover{border-color:#007bff;transform:translateY(-1px);box-shadow:0 2px 8px rgba(0,0,0,.1)}
+        .action-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}
         .action-btn.false-positive:hover{border-color:#dc3545;color:#dc3545;background:#fff5f5}
         .action-btn.correct:hover{border-color:#28a745;color:#28a745;background:#f0fff4}
         .skip-btn:hover{border-color:#6c757d;color:#6c757d;background:#f8f9fa}
@@ -453,6 +461,7 @@ _REVIEW_TEMPLATE = """
     </style>
 </head>
 <body>
+<div id="flash"></div>
 <div class="header">
     <h1>VideoDetect</h1>
     <a href="/">&laquo; Back to queue</a>
@@ -497,33 +506,58 @@ _REVIEW_TEMPLATE = """
 
 <script>
 async function submitVerdict(verdict) {
-    const resp = await fetch(`/api/review/submit/{{ video.id }}`, {
-        method: 'POST',
-        headers: {'Content-Type': 'application/json'},
-        body: JSON.stringify({verdict})
-    });
-    if (resp.ok) {
-        showFlash('Verdict submitted ✓', '#28a745');
-        setTimeout(() => location.href = '/', 1000);
-    } else {
-        const err = await resp.json();
-        alert(err.error || 'Submission failed');
+    setActionButtonsDisabled(true);
+    showFlash('Submitting verdict...', '#007bff');
+
+    try {
+        const resp = await fetch(`/api/review/submit/{{ video.id }}`, {
+            method: 'POST',
+            headers: {'Content-Type': 'application/json'},
+            body: JSON.stringify({verdict})
+        });
+        const body = await resp.json().catch(() => ({}));
+        if (resp.ok) {
+            showFlash('Verdict submitted', '#28a745');
+            setTimeout(() => location.href = '/', 1000);
+        } else {
+            alert(body.error || 'Submission failed');
+            setActionButtonsDisabled(false);
+        }
+    } catch (err) {
+        alert(`Submission failed: ${err.message}`);
+        setActionButtonsDisabled(false);
     }
 }
 
 async function skipTask() {
     if (!confirm('Skip this task? It will be returned to the PENDING queue.')) return;
-    const resp = await fetch(`/api/review/skip/{{ video.id }}`, {method: 'POST'});
-    if (resp.ok) {
-        showFlash('Task skipped, returned to queue', '#6c757d');
-        setTimeout(() => location.href = '/', 1000);
-    } else {
-        alert('Skip failed');
+    setActionButtonsDisabled(true);
+    showFlash('Skipping task...', '#6c757d');
+
+    try {
+        const resp = await fetch(`/api/review/skip/{{ video.id }}`, {method: 'POST'});
+        if (resp.ok) {
+            showFlash('Task skipped, returned to queue', '#6c757d');
+            setTimeout(() => location.href = '/', 1000);
+        } else {
+            alert('Skip failed');
+            setActionButtonsDisabled(false);
+        }
+    } catch (err) {
+        alert(`Skip failed: ${err.message}`);
+        setActionButtonsDisabled(false);
     }
 }
 
+function setActionButtonsDisabled(disabled) {
+    document.querySelectorAll('.action-btn').forEach((button) => {
+        button.disabled = disabled;
+    });
+}
+
 function showFlash(msg, color) {
     const el = document.getElementById('flash');
+    if (!el) return;
     el.textContent = msg; el.style.background = color; el.style.display = 'block';
     setTimeout(() => el.style.display = 'none', 2500);
 }