Fix Docker deployment and add Tailscale Funnel support

- Fix argon2 native module build in Docker (add build-essential, python3)
- Switch Docker base image from Alpine to Debian-slim for OpenSSL compatibility
- Fix session cookies for HTTP access (COOKIE_SECURE env var)
- Fix TypeScript type errors in sync routes and middleware
- Fix CSS circular dependency in globals.css
- Fix Map iteration in rate-limit cleanup
- Add createdAt field to LocalNote interface
- Configure Tailscale Funnel on port 10000
- Update NEXT_PUBLIC_APP_URL for public funnel access
- Add initial Prisma migration

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/app/(app)/today/page.tsx

@@ -66,7 +66,7 @@ export default function TodayPage() {
     if (medications && doseLogs) {
       const meds = medications.map((m) => ({
         ...m,
-        scheduleData: m.scheduleData as Medication['scheduleData'],
+        scheduleData: m.scheduleData as unknown as Medication['scheduleData'],
         startDate: m.startDate ? new Date(m.startDate) : null,
         endDate: m.endDate ? new Date(m.endDate) : null,
       })) as Medication[]