corregir recursion infinita en safeInvoke + status.toLowerCase con booleans

src/services/tauri-db.ts

@@ -1,10 +1,14 @@
-import { invoke } from '@tauri-apps/api/core'
+import { invoke as tauriInvoke } from '@tauri-apps/api/core'
+
+const _invoke = typeof tauriInvoke === 'function' ? tauriInvoke : undefined
 
 function safeInvoke<T>(cmd: string, args?: Record<string, unknown>): Promise<T> {
-  if (typeof invoke !== 'function') {
+  if (!_invoke) {
     console.warn(`[Alpha] Tauri invoke no disponible (${cmd}). ¿Estás en un navegador externo? Usá la ventana de Tauri.`)
     return Promise.resolve(null as unknown as T)
   }
+  return _invoke(cmd, args)
+}
   return safeInvoke(cmd, args)
 }