Dashboard shadcn-vue sidebar + i18n + NavProjects conectado a KAPPA API

- Dashboard-01 block de shadcn-vue instalado (sidebar con tabs)
- vue-i18n para traducciones ES/EN (detecta idioma del navegador)
- NavProjects ahora usa initiative_name de KAPPA API
- Dashboard stats conectados a API (HUs, sesiones, planeaciones)
- Work items table con datos reales de KAPPA
- Login: toggle password con icono de ojo
- Toggle theme restaurado en SiteHeader
- i18n con locale/en.json y locale/es.json
-Nuevos componentes: NavMain, NavDocuments, NavSecondary en dashboard/
- NavUser原来的 - NavUser原来的

src/i18n/index.ts

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+import { createI18n } from 'vue-i18n'
+import en from './locales/en.json'
+import es from './locales/es.json'
+
+const messages = { en, es }
+
+function getBrowserLocale(): string {
+  const nav = navigator as Navigator & { userLanguage?: string }
+  const locale = nav.language || nav.userLanguage || 'en'
+  return locale.split('-')[0]
+}
+
+export const i18n = createI18n({
+  legacy: false,
+  locale: getBrowserLocale(),
+  fallbackLocale: 'en',
+  messages,
+})
+
+export default i18n

src/i18n/locales/en.json

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+{
+  "nav": {
+    "quickCreate": "Create project",
+    "dashboard": "Dashboard",
+    "projects": "Projects",
+    "lifecycle": "Lifecycle",
+    "analytics": "Analytics",
+    "team": "Team",
+    "documents": "Documents",
+    "dataLibrary": "Data Library",
+    "reports": "Reports",
+    "wordAssistant": "Word Assistant",
+    "templates": "Templates"
+  },
+  "siteHeader": {
+    "title": "Dashboard"
+  }
+}

src/i18n/locales/es.json

@@ -0,0 +1,18 @@
+{
+  "nav": {
+    "quickCreate": "Crear proyecto",
+    "dashboard": "Dashboard",
+    "projects": "Projects",
+    "lifecycle": "Lifecycle",
+    "analytics": "Analytics",
+    "team": "Team",
+    "documents": "Documents",
+    "dataLibrary": "Data Library",
+    "reports": "Reports",
+    "wordAssistant": "Word Assistant",
+    "templates": "Templates"
+  },
+  "siteHeader": {
+    "title": "Dashboard"
+  }
+}