Rename public discovery app from "finder" to "koja"

Rebrand the public café-discovery app: directories web/finder→web/koja and
docker/finder→docker/koja, plus all service wiring (docker-compose, Caddy
subdomain koja.meezi.ir, env vars KOJA_PORT / NEXT_PUBLIC_KOJA_URL, CI
workflows) and the app's display name (Koja / کجا).

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

web/koja/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "koja",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint",
+    "cap:sync": "cap sync android",
+    "cap:open": "cap open android"
+  },
+  "dependencies": {
+    "@capacitor/android": "^6.2.0",
+    "@capacitor/core": "^6.2.0",
+    "@capacitor/splash-screen": "^6.0.3",
+    "cordova-plugin-pushe": "^2.5.0",
+    "next": "16.2.6",
+    "react": "19.2.6",
+    "react-dom": "19.2.6",
+    "next-intl": "4.12.0",
+    "@ducanh2912/next-pwa": "^10.2.9",
+    "workbox-window": "^7.3.0",
+    "lucide-react": "^0.468.0",
+    "clsx": "^2.1.1",
+    "tailwind-merge": "^2.5.4",
+    "date-fns": "^3.6.0",
+    "date-fns-jalali": "^3.4.0-0"
+  },
+  "devDependencies": {
+    "@capacitor/cli": "^6.2.0",
+    "typescript": "5.8.3",
+    "@types/node": "^22",
+    "@types/react": "19.1.4",
+    "@types/react-dom": "19.1.4",
+    "tailwindcss": "3.4.14",
+    "postcss": "^8",
+    "autoprefixer": "^10",
+    "eslint": "^8",
+    "eslint-config-next": "16.2.6"
+  }
+}