feat: redesigned Home (weather+forecast bar, today+tomorrow, pinned notes), fix snow animation, scrollable weather modal, weather hints

app/api/notes/route.ts

@@ -11,6 +11,7 @@ interface Note {
   items?: { id: string; text: string; done: boolean }[]
   text?: string
   color: string
+  pinDate: string | null
   createdAt: string
   updatedAt: string
 }
@@ -42,6 +43,7 @@ export async function POST(req: Request) {
     items: body.type === 'shopping' ? [] : undefined,
     text: body.type === 'note' ? '' : undefined,
     color: body.color || '#6366f1',
+    pinDate: body.pinDate || null,
     createdAt: new Date().toISOString(),
     updatedAt: new Date().toISOString(),
   }