Implement notification history feature

Adds a notification history view accessible from the header, including a clear button and a notification count badge.

package.json

@@ -47,6 +47,7 @@
     "@radix-ui/react-tooltip": "^1.1.4",
     "@supabase/supabase-js": "^2.49.1",
     "@tanstack/react-query": "^5.56.2",
+    "@types/uuid": "^10.0.0",
     "browserslist": "^4.24.4",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
@@ -66,6 +67,7 @@
     "sonner": "^1.5.0",
     "tailwind-merge": "^2.5.2",
     "tailwindcss-animate": "^1.0.7",
+    "uuid": "^11.1.0",
     "vaul": "^0.9.3",
     "zod": "^3.23.8"
   },