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/src/lib/utils.ts

@@ -0,0 +1,72 @@
+import { clsx, type ClassValue } from "clsx";
+import { twMerge } from "tailwind-merge";
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs));
+}
+
+export function formatPrice(price: number, locale: string): string {
+  if (locale === "fa") {
+    return new Intl.NumberFormat("fa-IR").format(price) + " تومان";
+  }
+  return new Intl.NumberFormat("en-US").format(price) + " ﷼";
+}
+
+export function formatRating(rating: number): string {
+  return rating.toFixed(1);
+}
+
+// Convert Persian/Arabic digits to Latin
+export function toLatinDigits(str: string): string {
+  return str
+    .replace(/[۰-۹]/g, (d) => String(d.charCodeAt(0) - 0x06f0))
+    .replace(/[٠-٩]/g, (d) => String(d.charCodeAt(0) - 0x0660));
+}
+
+// Slugify a Persian or Latin string for URLs
+export function slugify(str: string): string {
+  return toLatinDigits(str)
+    .toLowerCase()
+    .trim()
+    .replace(/[\s_]+/g, "-")
+    .replace(/[^a-z0-9؀-ۿ-]/g, "")
+    .replace(/-+/g, "-");
+}
+
+const DAY_KEYS_FA: Record<string, string> = {
+  sat: "شنبه",
+  sun: "یکشنبه",
+  mon: "دوشنبه",
+  tue: "سه‌شنبه",
+  wed: "چهارشنبه",
+  thu: "پنجشنبه",
+  fri: "جمعه",
+};
+
+const DAY_KEYS_EN: Record<string, string> = {
+  sat: "Sat",
+  sun: "Sun",
+  mon: "Mon",
+  tue: "Tue",
+  wed: "Wed",
+  thu: "Thu",
+  fri: "Fri",
+};
+
+export function getDayLabel(key: string, locale: string): string {
+  return locale === "fa" ? DAY_KEYS_FA[key] ?? key : DAY_KEYS_EN[key] ?? key;
+}
+
+export const PRICE_TIER_LABELS: Record<string, { fa: string; en: string }> = {
+  budget:    { fa: "مقرون‌به‌صرفه", en: "Budget" },
+  moderate:  { fa: "معمولی",        en: "Moderate" },
+  upscale:   { fa: "لوکس",          en: "Upscale" },
+  luxury:    { fa: "پریمیوم",       en: "Luxury" },
+};
+
+export const NOISE_LABELS: Record<string, { fa: string; en: string }> = {
+  quiet:    { fa: "آرام",         en: "Quiet" },
+  moderate: { fa: "نسبتاً آرام",  en: "Moderate" },
+  lively:   { fa: "شلوغ",         en: "Lively" },
+  loud:     { fa: "پرسروصدا",    en: "Loud" },
+};