initial scaffold: vue 3 + vite 8 + shadcn-vue + tailwind 4

Wires pinia, vue-router, vue-i18n, vee-validate/zod, shadcn-vue
(reka-ui), tailwind 4 via @tailwindcss/vite. Sample HomeView
proves i18n + pinia + tailwind. Optional nostr/lnbits feature
folders ship as documentation only — deps install on opt-in.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

components.json

@@ -0,0 +1,21 @@
+{
+  "$schema": "https://shadcn-vue.com/schema.json",
+  "style": "default",
+  "typescript": true,
+  "tailwind": {
+    "config": "",
+    "css": "src/style.css",
+    "baseColor": "neutral",
+    "cssVariables": true,
+    "prefix": ""
+  },
+  "framework": "vite",
+  "aliases": {
+    "components": "@/components",
+    "composables": "@/composables",
+    "utils": "@/lib/utils",
+    "ui": "@/components/ui",
+    "lib": "@/lib"
+  },
+  "iconLibrary": "lucide"
+}