feat(ui): add wedding theme styles and layout components

* Introduced wedding-themed CSS variables for styling.
* Created layout component for the wedding site with navigation and countdown.
* Added RSVP and photo upload pages with form handling.
* Implemented QR code page for wedding site access.
* Configured TypeScript and Vite for the project.
* Added robots.txt for search engine crawling.

config.example.yaml

@@ -0,0 +1,28 @@
+server:
+  port: 8080
+
+site:
+  url: "https://zoeshaldon.warky.info" # canonical URL, used for the /qr page
+
+wedding:
+  date: "2026-11-07T16:00:00+02:00" # RFC3339, guest arrival time; drives countdown + photo upload gate
+  ceremony_time: "16:00 for 16:30" # display text
+  rsvp_by: "2026-09-01T00:00:00+02:00" # RFC3339, RSVP deadline; drives the RSVP countdown
+  venue_name: "Rivier Plaas"
+  venue_address: "Langenhoven Rd, Sherman Park AH, Meyerton, 1961"
+  rsvp_phone: "076 925 1718"
+
+storage:
+  data_dir: "./data" # SQLite db + uploaded photos
+
+email:
+  smtp_host: ""
+  smtp_port: 587
+  smtp_user: ""
+  smtp_pass: ""
+  from: ""
+  to: "" # couple's inbox, receives RSVP + photo notifications
+
+upload:
+  max_size_mb: 15
+  max_files: 10