Build Kozmos QR menu site — full implementation

Next.js 16 App Router, TR/EN i18n via [lang] routing and proxy.ts,
Tailwind v4, minimal list menu style, sticky bottom tab bar with
Intersection Observer, PWA manifest, WhatsApp fixed button.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

dictionaries/en.json

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+{
+  "meta": {
+    "title": "Kozmos Beach & More — Menu",
+    "description": "Kozmos Beach & More digital menu"
+  },
+  "header": {
+    "tagline": "BEACH & MORE"
+  },
+  "nav": {
+    "starters": "Starters",
+    "mains": "Main Courses",
+    "pizzas": "Pizzas",
+    "mezze": "Mezze",
+    "drinks": "Drinks",
+    "desserts": "Desserts"
+  },
+  "whatsapp": {
+    "label": "Reserve",
+    "message": "Hello, I would like to make a reservation."
+  },
+  "currency": "₺",
+  "langSwitch": {
+    "current": "EN",
+    "other": "TR",
+    "otherHref": "/tr"
+  }
+}

dictionaries/tr.json

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+{
+  "meta": {
+    "title": "Kozmos Beach & More — Menü",
+    "description": "Kozmos Beach & More dijital menüsü"
+  },
+  "header": {
+    "tagline": "BEACH & MORE"
+  },
+  "nav": {
+    "starters": "Başlangıçlar",
+    "mains": "Ana Yemekler",
+    "pizzas": "Pizzalar",
+    "mezze": "Mezeler",
+    "drinks": "İçecekler",
+    "desserts": "Tatlılar"
+  },
+  "whatsapp": {
+    "label": "Rezervasyon",
+    "message": "Merhaba, rezervasyon yapmak istiyorum."
+  },
+  "currency": "₺",
+  "langSwitch": {
+    "current": "TR",
+    "other": "EN",
+    "otherHref": "/en"
+  }
+}