feat: default locale Russian, geo determines language for other countries

- localization-svc: defaultLocale ru, resolveLocale only by geo
- web-svc: DEFAULT_LOCALE ru, layout lang=ru, embeddedTranslations fallback ru
- countryToLocale: default ru when no country or unknown country

Co-authored-by: Cursor <cursoragent@cursor.com>

services/billing-svc/package.json

@@ -0,0 +1,24 @@
+{
+  "name": "billing-svc",
+  "version": "1.0.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "tsx watch src/index.ts",
+    "build": "tsc",
+    "start": "node dist/index.js",
+    "db:migrate": "tsx src/db/push.ts"
+  },
+  "dependencies": {
+    "fastify": "^4.28.1",
+    "@fastify/cors": "^9.0.1",
+    "drizzle-orm": "^0.40.1",
+    "postgres": "^3.4.4",
+    "drizzle-kit": "^0.30.5"
+  },
+  "devDependencies": {
+    "@types/node": "^22.10.0",
+    "tsx": "^4.19.2",
+    "typescript": "^5.7.2"
+  }
+}