diff --git a/public/manifest.json b/public/manifest.json
new file mode 100644
index 0000000..be37aba
--- /dev/null
+++ b/public/manifest.json
@@ -0,0 +1,30 @@
+{
+  "name": "Port Nimara CRM",
+  "short_name": "Port Nimara",
+  "description": "Marina/port management CRM",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#f2f2f2",
+  "theme_color": "#0f172a",
+  "orientation": "any",
+  "icons": [
+    {
+      "src": "/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "/icon-512-maskable.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    }
+  ]
+}
diff --git a/src/app/(dashboard)/[portSlug]/admin/webhooks/page.tsx b/src/app/(dashboard)/[portSlug]/admin/webhooks/page.tsx
index be44d1d..af97986 100644
--- a/src/app/(dashboard)/[portSlug]/admin/webhooks/page.tsx
+++ b/src/app/(dashboard)/[portSlug]/admin/webhooks/page.tsx
@@ -1,6 +1,7 @@
 'use client';
 
 import { useCallback, useEffect, useState } from 'react';
+import { toast } from 'sonner';
 import { Button } from '@/components/ui/button';
 import { PageHeader } from '@/components/shared/page-header';
 import { Badge } from '@/components/ui/badge';
@@ -47,8 +48,8 @@ export default function WebhooksPage() {
     try {
       const result = await apiFetch<{ data: Webhook[] }>('/api/v1/admin/webhooks');
       setWebhooks(result.data);
-    } catch {
-      // ignore
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : 'Failed to load webhooks');
     } finally {
       setLoading(false);
     }
@@ -63,9 +64,10 @@ export default function WebhooksPage() {
     try {
       await apiFetch(`/api/v1/admin/webhooks/${deleteTarget.id}`, { method: 'DELETE' });
       setDeleteTarget(null);
+      toast.success('Webhook deleted');
       void loadWebhooks();
-    } catch {
-      // ignore
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : 'Failed to delete webhook');
     }
   }
 
@@ -78,8 +80,8 @@ export default function WebhooksPage() {
       );
       setNewSecret({ webhookId, secret: result.data.secret, masked: result.data.secretMasked });
       void loadWebhooks();
-    } catch {
-      // ignore
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : 'Failed to regenerate secret');
     } finally {
       setRegenerating(null);
     }
@@ -91,9 +93,10 @@ export default function WebhooksPage() {
         method: 'PATCH',
         body: { isActive: !webhook.isActive },
       });
+      toast.success(webhook.isActive ? 'Webhook disabled' : 'Webhook enabled');
       void loadWebhooks();
-    } catch {
-      // ignore
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : 'Failed to toggle webhook');
     }
   }
 
diff --git a/src/app/(dashboard)/error.tsx b/src/app/(dashboard)/error.tsx
new file mode 100644
index 0000000..42425eb
--- /dev/null
+++ b/src/app/(dashboard)/error.tsx
@@ -0,0 +1,55 @@
+'use client';
+
+import { useEffect } from 'react';
+import Link from 'next/link';
+import { AlertCircle, RotateCcw } from 'lucide-react';
+
+import { Button } from '@/components/ui/button';
+
+interface ErrorProps {
+  error: Error & { digest?: string };
+  reset: () => void;
+}
+
+export default function DashboardError({ error, reset }: ErrorProps) {
+  useEffect(() => {
+    // Forward to the browser console so the dev sees the stack while the
+    // user sees the friendly UI. The server already wrote an error_events
+    // row through the page-level error pipeline.
+
+    console.error('Dashboard render error:', error);
+  }, [error]);
+
+  return (
+    <div className="flex items-start justify-center min-h-[60vh] p-6">
+      <div className="max-w-md w-full bg-background border rounded-lg p-6 shadow-sm">
+        <div className="flex items-center gap-3 mb-4">
+          <div className="rounded-full bg-red-100 p-2">
+            <AlertCircle className="h-5 w-5 text-red-600" />
+          </div>
+          <h1 className="text-lg font-semibold">Something went wrong</h1>
+        </div>
+
+        <p className="text-sm text-muted-foreground mb-4">
+          The page hit an unexpected error. The team has been notified
+          {error.digest ? ' (ref: ' : '.'}
+          {error.digest ? <code className="font-mono text-xs">{error.digest}</code> : null}
+          {error.digest ? ').' : ''}
+        </p>
+
+        <div className="flex items-center gap-2">
+          <Button onClick={reset} size="sm">
+            <RotateCcw className="h-3.5 w-3.5 mr-1.5" />
+            Try again
+          </Button>
+          <Link
+            href={'/' as never}
+            className="text-sm text-muted-foreground hover:text-foreground underline"
+          >
+            Back to dashboard
+          </Link>
+        </div>
+      </div>
+    </div>
+  );
+}
diff --git a/src/app/(portal)/portal/documents/document-download-button.tsx b/src/app/(portal)/portal/documents/document-download-button.tsx
index a63bcb1..78d567f 100644
--- a/src/app/(portal)/portal/documents/document-download-button.tsx
+++ b/src/app/(portal)/portal/documents/document-download-button.tsx
@@ -2,6 +2,8 @@
 
 import { useState } from 'react';
 import { Download, Loader2 } from 'lucide-react';
+import { toast } from 'sonner';
+
 import { Button } from '@/components/ui/button';
 
 interface DocumentDownloadButtonProps {
@@ -16,25 +18,20 @@ export function DocumentDownloadButton({ documentId }: DocumentDownloadButtonPro
     try {
       const res = await fetch(`/api/portal/documents/${documentId}/download`);
       if (!res.ok) {
-        alert('Unable to download document. Please try again.');
+        toast.error('Unable to download document. Please try again.');
         return;
       }
-      const data = await res.json() as { url: string };
+      const data = (await res.json()) as { url: string };
       window.open(data.url, '_blank', 'noopener,noreferrer');
     } catch {
-      alert('Unable to download document. Please check your connection.');
+      toast.error('Unable to download document. Please check your connection.');
     } finally {
       setLoading(false);
     }
   }
 
   return (
-    <Button
-      variant="outline"
-      size="sm"
-      onClick={handleDownload}
-      disabled={loading}
-    >
+    <Button variant="outline" size="sm" onClick={handleDownload} disabled={loading}>
       {loading ? (
         <Loader2 className="h-3.5 w-3.5 animate-spin" />
       ) : (
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index ffbfb88..34c723c 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -44,6 +44,7 @@ export const metadata: Metadata = {
     ],
     apple: '/apple-touch-icon.png',
   },
+  manifest: '/manifest.json',
 };
 
 export default async function RootLayout({ children }: { children: React.ReactNode }) {
diff --git a/src/components/clients/client-yachts-tab.tsx b/src/components/clients/client-yachts-tab.tsx
index 0788264..cd57df1 100644
--- a/src/components/clients/client-yachts-tab.tsx
+++ b/src/components/clients/client-yachts-tab.tsx
@@ -49,7 +49,11 @@ export function ClientYachtsTab({ clientId: _clientId, yachts }: ClientYachtsTab
       </div>
 
       {yachts.length === 0 ? (
-        <EmptyState title="No yachts" description="No yachts owned by this client yet." />
+        <EmptyState
+          title="No yachts yet"
+          description="Track every yacht this client owns or charters here. Linked yachts pre-fill EOIs and surface in the recommender."
+          action={{ label: 'Add yacht', onClick: () => setCreateOpen(true) }}
+        />
       ) : (
         <div className="rounded-md border">
           <Table>
diff --git a/src/components/clients/gdpr-export-button.tsx b/src/components/clients/gdpr-export-button.tsx
index e2f96a2..72a592d 100644
--- a/src/components/clients/gdpr-export-button.tsx
+++ b/src/components/clients/gdpr-export-button.tsx
@@ -62,7 +62,15 @@ export function GdprExportButton({ clientId }: { clientId: string }) {
     queryKey,
     queryFn: () => apiFetch<ListResp>(`/api/v1/clients/${clientId}/gdpr-export`),
     enabled: open && allowed,
-    refetchInterval: open && allowed ? 5_000 : false,
+    // Poll only when the user is watching AND a job is in flight. GDPR
+    // exports take ~30s; 15s is the rule-of-thumb minimum that doesn't
+    // burn CPU. When everything's already settled, stop polling.
+    refetchInterval: (q) => {
+      if (!open || !allowed) return false;
+      const rows = q.state.data?.data ?? [];
+      const hasInFlight = rows.some((r) => r.status === 'pending' || r.status === 'building');
+      return hasInFlight ? 15_000 : false;
+    },
   });
 
   const request = useMutation({
diff --git a/src/components/ui/popover.tsx b/src/components/ui/popover.tsx
index 70a28f6..f8ac145 100644
--- a/src/components/ui/popover.tsx
+++ b/src/components/ui/popover.tsx
@@ -1,33 +1,37 @@
-"use client"
+'use client';
 
-import * as React from "react"
-import * as PopoverPrimitive from "@radix-ui/react-popover"
+import * as React from 'react';
+import * as PopoverPrimitive from '@radix-ui/react-popover';
 
-import { cn } from "@/lib/utils"
+import { cn } from '@/lib/utils';
 
-const Popover = PopoverPrimitive.Root
+const Popover = PopoverPrimitive.Root;
 
-const PopoverTrigger = PopoverPrimitive.Trigger
+const PopoverTrigger = PopoverPrimitive.Trigger;
 
-const PopoverAnchor = PopoverPrimitive.Anchor
+const PopoverAnchor = PopoverPrimitive.Anchor;
 
 const PopoverContent = React.forwardRef<
   React.ElementRef<typeof PopoverPrimitive.Content>,
   React.ComponentPropsWithoutRef<typeof PopoverPrimitive.Content>
->(({ className, align = "center", sideOffset = 4, ...props }, ref) => (
+>(({ className, align = 'center', sideOffset = 4, collisionPadding = 16, ...props }, ref) => (
   <PopoverPrimitive.Portal>
     <PopoverPrimitive.Content
       ref={ref}
       align={align}
       sideOffset={sideOffset}
+      // collisionPadding keeps the popover from clipping past the viewport
+      // edge on mobile (390px / iPad portrait). w-72 is a desktop default;
+      // on narrow viewports the calc() ceiling kicks in.
+      collisionPadding={collisionPadding}
       className={cn(
-        "z-50 w-72 rounded-md border bg-popover p-4 text-popover-foreground shadow-md outline-none data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 origin-[--radix-popover-content-transform-origin]",
-        className
+        'z-50 w-[min(calc(100vw-2rem),18rem)] rounded-md border bg-popover p-4 text-popover-foreground shadow-md outline-none data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 origin-[--radix-popover-content-transform-origin]',
+        className,
       )}
       {...props}
     />
   </PopoverPrimitive.Portal>
-))
-PopoverContent.displayName = PopoverPrimitive.Content.displayName
+));
+PopoverContent.displayName = PopoverPrimitive.Content.displayName;
 
-export { Popover, PopoverTrigger, PopoverContent, PopoverAnchor }
+export { Popover, PopoverTrigger, PopoverContent, PopoverAnchor };