fix(kml-import): address PR #488 review issues

- Strip BOM (U+FEFF) from 14 translation files injected by editor
- Guard KMZ unpack against zip-bomb: check entry.uncompressedSize against
  50 MB cap (KMZ_DECOMPRESSED_SIZE_LIMIT) before calling .buffer();
  limit is an exported constant so tests can override it
- Fix non-BMP HTML entity decoding: replace String.fromCharCode with
  String.fromCodePoint + 0x10FFFF bounds check so emoji like 😀
  round-trip correctly
- Switch KML namespace stripping from regex to fast-xml-parser's
  removeNSPrefix option; XMLValidator accepts namespaced XML natively,
  making the pre-strip step unnecessary
- Remove dead skippedCount overwrite after transaction; per-loop
  increment already tracks it alongside per-item error messages
- Type multer req.file as Express.Multer.File on both /import/gpx
  and /import/map routes instead of (req as any).file
- Add unit tests: emoji entity decoding (decimal + hex), KMZ zip-bomb
  rejection, KMZ-with-no-KML rejection

client/src/i18n/translations/ar.ts

@@ -1,4 +1,4 @@
-import en from './en'
+import en from './en'
 
 const ar: Record<string, string | { name: string; category: string }[]> = {
   ...en,

client/src/i18n/translations/br.ts

@@ -1,4 +1,4 @@
-const br: Record<string, string | { name: string; category: string }[]> = {
+const br: Record<string, string | { name: string; category: string }[]> = {
   // Common
   'common.save': 'Salvar',
   'common.showMore': 'Mostrar mais',

client/src/i18n/translations/cs.ts

@@ -1,4 +1,4 @@
-const cs: Record<string, string | { name: string; category: string }[]> = {
+const cs: Record<string, string | { name: string; category: string }[]> = {
   // Společné (Common)
   'common.save': 'Uložit',
   'common.showMore': 'Zobrazit více',

client/src/i18n/translations/de.ts

@@ -1,4 +1,4 @@
-const de: Record<string, string | { name: string; category: string }[]> = {
+const de: Record<string, string | { name: string; category: string }[]> = {
   // Allgemein
   'common.save': 'Speichern',
   'common.showMore': 'Mehr anzeigen',

client/src/i18n/translations/en.ts

@@ -1,4 +1,4 @@
-const en: Record<string, string | { name: string; category: string }[]> = {
+const en: Record<string, string | { name: string; category: string }[]> = {
   // Common
   'common.save': 'Save',
   'common.showMore': 'Show more',

client/src/i18n/translations/es.ts

@@ -1,4 +1,4 @@
-const es: Record<string, string> = {
+const es: Record<string, string> = {
   // Common
   'common.save': 'Guardar',
   'common.showMore': 'Ver más',

client/src/i18n/translations/fr.ts

@@ -1,4 +1,4 @@
-const fr: Record<string, string> = {
+const fr: Record<string, string> = {
   // Common
   'common.save': 'Enregistrer',
   'common.showMore': 'Voir plus',

client/src/i18n/translations/hu.ts

@@ -1,4 +1,4 @@
-const hu: Record<string, string | { name: string; category: string }[]> = {
+const hu: Record<string, string | { name: string; category: string }[]> = {
   // Általános
   'common.save': 'Mentés',
   'common.showMore': 'Továbbiak',

client/src/i18n/translations/it.ts

@@ -1,4 +1,4 @@
-const it: Record<string, string | { name: string; category: string }[]> = {
+const it: Record<string, string | { name: string; category: string }[]> = {
   // Common
   'common.save': 'Salva',
   'common.showMore': 'Mostra di più',

client/src/i18n/translations/nl.ts

@@ -1,4 +1,4 @@
-const nl: Record<string, string> = {
+const nl: Record<string, string> = {
   // Common
   'common.save': 'Opslaan',
   'common.showMore': 'Meer tonen',

client/src/i18n/translations/pl.ts

@@ -1,4 +1,4 @@
-const pl: Record<string, string | { name: string; category: string }[]> = {
+const pl: Record<string, string | { name: string; category: string }[]> = {
   // Common
   'common.save': 'Zapisz',
   'common.showMore': 'Pokaż więcej',

client/src/i18n/translations/ru.ts

@@ -1,4 +1,4 @@
-const ru: Record<string, string> = {
+const ru: Record<string, string> = {
   // Common
   'common.save': 'Сохранить',
   'common.showMore': 'Показать больше',

client/src/i18n/translations/zh.ts

@@ -1,4 +1,4 @@
-const zh: Record<string, string> = {
+const zh: Record<string, string> = {
   // Common
   'common.save': '保存',
   'common.showMore': '显示更多',

client/src/i18n/translations/zhTw.ts

@@ -1,4 +1,4 @@
-const zhTw: Record<string, string> = {
+const zhTw: Record<string, string> = {
   // Common
   'common.save': '儲存',
   'common.showMore': '顯示更多',