Initial commit: baseline snapshot before UI/UX refactor

Captures the existing lovelope.app codebase (Next.js App Router,
custom Tailwind components, Prisma) as a rollback point prior to
adopting shadcn/ui and a mobile-first redesign.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/lib/calendar.ts

@@ -0,0 +1,21 @@
+function toGCalDate(d: Date) {
+  return d.toISOString().replace(/[-:.]/g, '').slice(0, 15) + 'Z';
+}
+
+export function makeIcs(title: string, startsAt: Date, description: string) {
+  const start = toGCalDate(startsAt);
+  const end = toGCalDate(new Date(startsAt.getTime() + 60 * 60 * 1000));
+  return [
+    'BEGIN:VCALENDAR', 'VERSION:2.0', 'PRODID:-//lovelope.app//EN',
+    'BEGIN:VEVENT',
+    `DTSTART:${start}`, `DTEND:${end}`,
+    `SUMMARY:${title}`, `DESCRIPTION:${description}`,
+    'END:VEVENT', 'END:VCALENDAR',
+  ].join('\r\n');
+}
+
+export function makeGCalUrl(title: string, startsAt: Date, description: string) {
+  const start = toGCalDate(startsAt);
+  const end = toGCalDate(new Date(startsAt.getTime() + 60 * 60 * 1000));
+  return `https://calendar.google.com/calendar/render?action=TEMPLATE&text=${encodeURIComponent(title)}&dates=${start}/${end}&details=${encodeURIComponent(description)}`;
+}