brand: add (you)r* prefix to landing page title

Reinforces the r-suite "your tools" philosophy across all rApp landing pages.
Also normalizes title separators to em-dash for consistency.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/app/layout.tsx

@@ -12,7 +12,7 @@ const inter = Inter({
 })
 
 export const metadata: Metadata = {
-  title: 'rNotes - Universal Knowledge Capture',
+  title: '(you)rNotes — Universal Knowledge Capture',
   description: 'Capture notes, clips, bookmarks, code, and files. Organize in notebooks, tag freely, and collaborate on a visual canvas shared across r*Spaces.',
   icons: {
     icon: "data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>📝</text></svg>",
@@ -24,7 +24,7 @@ export const metadata: Metadata = {
     title: 'rNotes',
   },
   openGraph: {
-    title: 'rNotes - Universal Knowledge Capture',
+    title: '(you)rNotes — Universal Knowledge Capture',
     description: 'Capture notes, clips, bookmarks, code, and files with a collaborative canvas.',
     type: 'website',
     url: 'https://rnotes.online',