Fix docs links, add 404 page, robots.txt, and PWA icons

app/not-found.tsx

@@ -0,0 +1,30 @@
+'use client'
+
+import Link from 'next/link'
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card'
+import { Button } from '@/components/ui/button'
+
+export default function NotFound() {
+  return (
+    <div className="flex min-h-screen items-center justify-center p-6 bg-background">
+      <Card className="w-full max-w-2xl border-border">
+        <CardHeader>
+          <CardTitle className="text-xl">Page not found</CardTitle>
+          <CardDescription className="text-sm">
+            The page you're looking for doesn't exist or has been moved.
+          </CardDescription>
+        </CardHeader>
+        <CardContent>
+          <div className="flex flex-wrap items-center gap-3">
+            <Button asChild>
+              <Link href="/">Go home</Link>
+            </Button>
+            <Button variant="outline" asChild>
+              <Link href="/">Back to dashboard</Link>
+            </Button>
+          </div>
+        </CardContent>
+      </Card>
+    </div>
+  )
+}

app/robots.ts

@@ -0,0 +1,16 @@
+import { MetadataRoute } from 'next'
+
+export default function robots(): MetadataRoute.Robots {
+  const baseUrl = 'https://flowstar.app'
+
+  return {
+    rules: [
+      {
+        userAgent: '*',
+        allow: '/',
+        disallow: '/app/',
+      },
+    ],
+    sitemap: `${baseUrl}/sitemap.xml`,
+  }
+}

docs/FAQ.md

@@ -306,8 +306,8 @@ or leave a comment on the relevant issue._
 
 This document collects the most common questions that new contributors ask when working on FlowStar.  
 If you can’t find the answer here, feel free to open an issue or check the
-[CONTRIBUTING guide](CONTRIBUTING.md) and the
-[Troubleshooting guide](docs/TROUBLESHOOTING.md).
+[CONTRIBUTING guide](../CONTRIBUTING.md) and the
+[Troubleshooting guide](./TROUBLESHOOTING.md).
 
 ---
 
@@ -321,7 +321,7 @@ If you can’t find the answer here, feel free to open an issue or check the
 | **When to use** | During UI development or when you don’t want to spend testnet tokens. | When you want to validate real contract calls or submit PRs that touch the blockchain. |
 
 > **Tip:** The `mock-mode` flag is toggled in the app’s settings. See the
-> [CONTRIBUTING guide](CONTRIBUTING.md) for details on enabling it.
+> [CONTRIBUTING guide](../CONTRIBUTING.md) for details on enabling it.
 
 ---
 
@@ -347,7 +347,7 @@ If you can’t find the answer here, feel free to open an issue or check the
 
 If you’re unsure whether an issue is ready for you, open a comment or
 contact the maintainers. See the
-[CONTRIBUTING guide](CONTRIBUTING.md) for more details on the workflow.
+[CONTRIBUTING guide](../CONTRIBUTING.md) for more details on the workflow.
 
 ---
 
@@ -360,7 +360,7 @@ contact the maintainers. See the
    `npm run mock`.
 4. **Consult the Troubleshooting guide** – Many common network errors are
    documented in the
-   [Troubleshooting guide](docs/TROUBLESHOOTING.md).
+   [Troubleshooting guide](./TROUBLESHOOTING.md).
 
 ---
 

public/manifest.json

@@ -26,7 +26,19 @@
       "src": "/apple-icon.png",
       "sizes": "180x180",
       "type": "image/png",
-      "purpose": "any maskable"
+      "purpose": "any"
+    },
+    {
+      "src": "/icon-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/icon-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
     }
   ],
   "categories": ["finance", "productivity"]