Replace Puppeteer with Next.js ImageResponse for previews

- Remove puppeteer (2.9GB) in favor of built-in ImageResponse (0 deps)
- Preview endpoint generates styled deployment card as PNG
- Shows app name, status, branch, commit, duration, domain
- Rename route.ts to route.tsx for JSX support
- Simplify dashboard to use image URL directly

src/app/api/deployments/[uuid]/preview/route.ts

@@ -1,54 +0,0 @@
-import { NextResponse } from 'next/server';
-import { getPreviewUrl, previewExists } from '@/lib/s3';
-import { fetchDeploymentDetail } from '@/lib/coolify-db';
-
-export async function GET(
-  _request: Request,
-  { params }: { params: Promise<{ uuid: string }> }
-) {
-  const { uuid } = await params;
-
-  try {
-    // Get deployment to find application UUID
-    const deployment = await fetchDeploymentDetail(uuid);
-
-    if (!deployment) {
-      return NextResponse.json({ error: 'Deployment not found' }, { status: 404 });
-    }
-
-    const appUuid = deployment.application_uuid;
-
-    // Check if preview exists
-    const exists = await previewExists(appUuid, uuid);
-
-    if (!exists) {
-      return NextResponse.json({
-        exists: false,
-        message: 'Preview not available',
-        hint: 'Screenshot will be captured after successful deployment',
-      });
-    }
-
-    // Get presigned URL (valid for 1 hour)
-    const url = await getPreviewUrl(appUuid, uuid);
-
-    if (!url) {
-      return NextResponse.json(
-        { error: 'Failed to generate preview URL' },
-        { status: 500 }
-      );
-    }
-
-    return NextResponse.json({
-      exists: true,
-      url,
-      expiresIn: 3600,
-    });
-  } catch (error) {
-    console.error('Preview fetch error:', error);
-    return NextResponse.json(
-      { error: 'Failed to fetch preview', details: String(error) },
-      { status: 500 }
-    );
-  }
-}

src/app/api/deployments/[uuid]/preview/route.tsx

@@ -0,0 +1,237 @@
+import { ImageResponse } from 'next/og';
+import { fetchDeploymentDetail } from '@/lib/coolify-db';
+
+export const runtime = 'nodejs';
+
+const STATUS_CONFIG: Record<string, { color: string; bg: string; label: string }> = {
+  finished: { color: '#06b6d4', bg: '#0e2a2f', label: 'Ready' },
+  error: { color: '#ef4444', bg: '#2d1216', label: 'Error' },
+  in_progress: { color: '#f59e0b', bg: '#2d2305', label: 'Building' },
+  queued: { color: '#9ca3af', bg: '#1f2028', label: 'Queued' },
+  cancelled: { color: '#9ca3af', bg: '#1f2028', label: 'Cancelled' },
+};
+
+function formatDuration(seconds: number): string {
+  const m = Math.floor(seconds / 60);
+  const s = seconds % 60;
+  return m > 0 ? `${m}m ${s}s` : `${s}s`;
+}
+
+function formatTimeAgo(dateStr: string): string {
+  const diff = Date.now() - new Date(dateStr).getTime();
+  const mins = Math.floor(diff / 60000);
+  const hours = Math.floor(mins / 60);
+  const days = Math.floor(hours / 24);
+  if (days > 0) return `${days}d ago`;
+  if (hours > 0) return `${hours}h ago`;
+  if (mins > 0) return `${mins}m ago`;
+  return 'just now';
+}
+
+export async function GET(
+  _request: Request,
+  { params }: { params: Promise<{ uuid: string }> }
+) {
+  const { uuid } = await params;
+
+  const deployment = await fetchDeploymentDetail(uuid);
+
+  if (!deployment) {
+    return new ImageResponse(
+      (
+        <div
+          style={{
+            display: 'flex',
+            alignItems: 'center',
+            justifyContent: 'center',
+            width: '100%',
+            height: '100%',
+            backgroundColor: '#0a0a0b',
+            color: '#6b7280',
+            fontSize: 24,
+          }}
+        >
+          Deployment not found
+        </div>
+      ),
+      { width: 640, height: 400 }
+    );
+  }
+
+  const status = STATUS_CONFIG[deployment.status] || STATUS_CONFIG.queued;
+  const branch = deployment.git_branch || 'main';
+  const commit = deployment.git_commit_sha?.slice(0, 7) || '—';
+  const commitMsg = deployment.commit_message
+    ? deployment.commit_message.length > 50
+      ? deployment.commit_message.slice(0, 50) + '...'
+      : deployment.commit_message
+    : 'No commit message';
+  const duration = deployment.duration ? formatDuration(deployment.duration) : '—';
+  const timeAgo = formatTimeAgo(deployment.created_at);
+  const fqdn = deployment.application_fqdn?.replace(/^https?:\/\//, '') || '';
+
+  return new ImageResponse(
+    (
+      <div
+        style={{
+          display: 'flex',
+          flexDirection: 'column',
+          width: '100%',
+          height: '100%',
+          backgroundColor: '#0a0a0b',
+          padding: '40px',
+          fontFamily: 'system-ui, sans-serif',
+        }}
+      >
+        {/* Top bar: app name + status */}
+        <div
+          style={{
+            display: 'flex',
+            alignItems: 'center',
+            justifyContent: 'space-between',
+            marginBottom: '32px',
+          }}
+        >
+          <div style={{ display: 'flex', alignItems: 'center', gap: '16px' }}>
+            {/* App icon */}
+            <div
+              style={{
+                display: 'flex',
+                alignItems: 'center',
+                justifyContent: 'center',
+                width: '48px',
+                height: '48px',
+                borderRadius: '12px',
+                backgroundColor: '#1a1a1d',
+                border: '1px solid #2a2a2e',
+                fontSize: '24px',
+              }}
+            >
+              {deployment.application_name.charAt(0).toUpperCase()}
+            </div>
+            <div style={{ display: 'flex', flexDirection: 'column' }}>
+              <span style={{ color: '#f5f5f5', fontSize: '28px', fontWeight: 700 }}>
+                {deployment.application_name}
+              </span>
+              {fqdn && (
+                <span style={{ color: '#6b7280', fontSize: '16px' }}>{fqdn}</span>
+              )}
+            </div>
+          </div>
+
+          {/* Status badge */}
+          <div
+            style={{
+              display: 'flex',
+              alignItems: 'center',
+              gap: '8px',
+              padding: '8px 16px',
+              borderRadius: '9999px',
+              backgroundColor: status.bg,
+            }}
+          >
+            <div
+              style={{
+                width: '10px',
+                height: '10px',
+                borderRadius: '50%',
+                backgroundColor: status.color,
+              }}
+            />
+            <span style={{ color: status.color, fontSize: '16px', fontWeight: 600 }}>
+              {status.label}
+            </span>
+          </div>
+        </div>
+
+        {/* Divider */}
+        <div style={{ display: 'flex', width: '100%', height: '1px', backgroundColor: '#1f1f23', marginBottom: '28px' }} />
+
+        {/* Metadata grid */}
+        <div
+          style={{
+            display: 'flex',
+            flexWrap: 'wrap',
+            gap: '24px',
+            marginBottom: '32px',
+          }}
+        >
+          {/* Branch */}
+          <div style={{ display: 'flex', flexDirection: 'column', minWidth: '140px' }}>
+            <span style={{ color: '#6b7280', fontSize: '13px', marginBottom: '6px', textTransform: 'uppercase', letterSpacing: '0.05em' }}>
+              Branch
+            </span>
+            <span style={{ color: '#d1d5db', fontSize: '18px', fontWeight: 500 }}>
+              {branch}
+            </span>
+          </div>
+
+          {/* Commit */}
+          <div style={{ display: 'flex', flexDirection: 'column', minWidth: '140px' }}>
+            <span style={{ color: '#6b7280', fontSize: '13px', marginBottom: '6px', textTransform: 'uppercase', letterSpacing: '0.05em' }}>
+              Commit
+            </span>
+            <span style={{ color: '#d1d5db', fontSize: '18px', fontFamily: 'monospace' }}>
+              {commit}
+            </span>
+          </div>
+
+          {/* Duration */}
+          <div style={{ display: 'flex', flexDirection: 'column', minWidth: '100px' }}>
+            <span style={{ color: '#6b7280', fontSize: '13px', marginBottom: '6px', textTransform: 'uppercase', letterSpacing: '0.05em' }}>
+              Duration
+            </span>
+            <span style={{ color: '#d1d5db', fontSize: '18px', fontWeight: 500 }}>
+              {duration}
+            </span>
+          </div>
+
+          {/* Created */}
+          <div style={{ display: 'flex', flexDirection: 'column', minWidth: '100px' }}>
+            <span style={{ color: '#6b7280', fontSize: '13px', marginBottom: '6px', textTransform: 'uppercase', letterSpacing: '0.05em' }}>
+              Created
+            </span>
+            <span style={{ color: '#d1d5db', fontSize: '18px', fontWeight: 500 }}>
+              {timeAgo}
+            </span>
+          </div>
+        </div>
+
+        {/* Commit message */}
+        <div
+          style={{
+            display: 'flex',
+            padding: '16px 20px',
+            borderRadius: '12px',
+            backgroundColor: '#111114',
+            border: '1px solid #1f1f23',
+            marginBottom: '28px',
+          }}
+        >
+          <span style={{ color: '#9ca3af', fontSize: '15px' }}>{commitMsg}</span>
+        </div>
+
+        {/* Footer */}
+        <div
+          style={{
+            display: 'flex',
+            alignItems: 'center',
+            justifyContent: 'space-between',
+            marginTop: 'auto',
+          }}
+        >
+          <span style={{ color: '#4b5563', fontSize: '14px' }}>
+            {deployment.deployment_uuid.slice(0, 12)}
+          </span>
+          <div style={{ display: 'flex', alignItems: 'center', gap: '6px' }}>
+            <span style={{ color: '#4b5563', fontSize: '14px' }}>NUC Portal</span>
+          </div>
+        </div>
+      </div>
+    ),
+    {
+      width: 640,
+      height: 400,
+    }
+  );
+}

src/components/DeploymentDashboard.tsx

@@ -47,13 +47,6 @@ interface StatsResponse {
   timestamp: string;
 }
 
-interface PreviewResponse {
-  exists: boolean;
-  url?: string;
-  expiresIn?: number;
-  message?: string;
-  hint?: string;
-}
 
 interface DeploymentDashboardProps {
   deployment: Deployment;
@@ -484,12 +477,8 @@ export function DeploymentDashboard({ deployment }: DeploymentDashboardProps) {
     { refreshInterval: 10000 }
   );
 
-  // Preview image (only fetch once, no refresh needed)
+  // Preview image URL (ImageResponse generates PNG directly)
-  const { data: preview, isLoading: previewLoading } = useSWR<PreviewResponse>(
+  const previewUrl = `/api/deployments/${deployment.deployment_uuid}/preview`;
-    `/api/deployments/${deployment.deployment_uuid}/preview`,
-    fetcher,
-    { revalidateOnFocus: false }
-  );
 
   const coolifyUrl = `${clientConfig.coolifyUrl}/project/${clientConfig.coolifyProjectUuid}/production/application/${deployment.application_uuid}/deployment/${deployment.deployment_uuid}`;
 
@@ -645,40 +634,14 @@ export function DeploymentDashboard({ deployment }: DeploymentDashboardProps) {
           {/* Main content: Preview + Metadata Grid */}
           <div className="p-6">
             <div className="flex gap-6">
-              {/* Preview thumbnail (left side) */}
+              {/* Preview thumbnail (left side) - generated via ImageResponse */}
               <div className="flex-shrink-0 w-80">
-                <div className="aspect-[16/10] bg-slate-900 dark:bg-stone-950 rounded-lg flex items-center justify-center overflow-hidden border border-slate-200 dark:border-stone-700 relative">
+                <div className="aspect-[16/10] rounded-lg overflow-hidden border border-slate-200 dark:border-stone-700">
-                  {previewLoading ? (
-                    <div className="text-center">
-                      <Icon name="loader" size={32} className="text-slate-600 dark:text-stone-600 mx-auto mb-2 animate-spin" />
-                      <span className="text-xs text-slate-500 dark:text-stone-500">Loading preview...</span>
-                    </div>
-                  ) : preview?.exists && preview.url ? (
                   <img
-                      src={preview.url}
+                    src={previewUrl}
                     alt={`Preview of ${deployment.application_name}`}
                     className="w-full h-full object-cover"
-                      onError={(e) => {
-                        // Hide image on error and show placeholder
-                        e.currentTarget.style.display = 'none';
-                        e.currentTarget.nextElementSibling?.classList.remove('hidden');
-                      }}
                   />
-                  ) : (
-                    <div className="text-center">
-                      <Icon name="image" size={48} className="text-slate-600 dark:text-stone-600 mx-auto mb-2" />
-                      <span className="text-xs text-slate-500 dark:text-stone-500">
-                        {deployment.status === 'in_progress' ? 'Preview after deploy' : 'No preview'}
-                      </span>
-                    </div>
-                  )}
-                  {/* Fallback placeholder (hidden by default, shown on image error) */}
-                  <div className="hidden absolute inset-0 flex items-center justify-center bg-slate-900 dark:bg-stone-950">
-                    <div className="text-center">
-                      <Icon name="image" size={48} className="text-slate-600 dark:text-stone-600 mx-auto mb-2" />
-                      <span className="text-xs text-slate-500 dark:text-stone-500">Preview unavailable</span>
-                    </div>
-                  </div>
                 </div>
               </div>