Refactor PVC models and update tests

- Updated the PVC models in the database and adjusted the tests accordingly to reflect the new model counts and codes.
- Removed deprecated models from the JSON data for PVC systems.
- Added new GLB models for "scorrevole_sf_3_ante" and "scorrevole_sf_4_ante".
- Enhanced the development scripts to streamline the build process for both frontends.
- Updated documentation to reflect changes in the development environment and deployment process.
- Improved the styling of texture radio options for better visibility.
- Fixed URL handling in the configurator to ensure proper routing and API calls.

backoffice/cliente/src/App.vue

@@ -2,6 +2,9 @@
 import { ref, reactive, computed, onMounted } from 'vue'
 import { api, resolveToken, resolveReturnUrl, resolveClienteToken, clearToken, formatEuro } from './api.js'
 
+// Servita sotto /preventivo/: i file di public/ vanno risolti rispetto alla base della build.
+const logoUrl = `${import.meta.env.BASE_URL}kreios-logo.jpg`
+
 const step = ref('cart') // cart | checkout | done
 const loading = ref(true)
 const submitting = ref(false)
@@ -158,7 +161,7 @@ onMounted(loadCarrello)
 
 <template>
   <header class="app-header">
-    <img src="/kreios-logo.jpg" alt="Krèios" />
+    <img :src="logoUrl" alt="Krèios" />
     <h1>Il tuo preventivo</h1>
   </header>
 
@@ -340,7 +343,7 @@ onMounted(loadCarrello)
     <!-- STEP CONFERMA -->
     <template v-else-if="step === 'done'">
       <div class="card center">
-        <img class="done-logo" src="/kreios-logo.jpg" alt="Krèios" />
+        <img class="done-logo" :src="logoUrl" alt="Krèios" />
         <div class="success-icon">✅</div>
         <h2>Grazie!</h2>
         <p>La tua richiesta di preventivo <b>n. {{ numeroConfermato }}</b> è stata inviata.</p>

backoffice/cliente/src/api.js

@@ -1,4 +1,5 @@
-const BASE = import.meta.env.VITE_API_BASE || 'http://localhost:8000/api'
+// L'app cliente è servita dal backend stesso (/preventivo/): l'API è sulla stessa origine.
+const BASE = import.meta.env.VITE_API_BASE || `${window.location.origin}/api`
 
 async function request(path, options = {}) {
   const res = await fetch(`${BASE}${path}`, {