feat(gdpr): conformità privacy — mappa a consenso, pagine legali, titolare

- Mappa Google su /contact ripristinata a click-to-load (consenso esplicito):
  nessun dato inviato a Google prima del click dell'utente
- Nuove pagine /privacy e /cookie-policy (informativa art. 13 GDPR e cookie),
  compilate con i dati del titolare IN-SANITY LAB S.R.L. (P.IVA 03927341200)
- Footer: ragione sociale + P.IVA e link a Privacy e Cookie Policy
- Form contatti: link all'informativa privacy sotto l'invio
- sitemap: aggiunte /privacy e /cookie-policy

Testi legali da far validare; base tecnica conforme (no analytics/tracker,
solo cookie tecnici, font self-hosted).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/components/ContactForm.astro

@@ -20,9 +20,15 @@ const { variant = 'full' } = Astro.props;
   <textarea class="field" name="message" placeholder={t('form.field.message')} required maxlength="5000"></textarea>
   <input class="hp" type="text" name="website" tabindex="-1" autocomplete="off" />
   <button class="btn" type="submit"><T tag="form.submit" as="span" /></button>
+  <p class="cform__privacy">Inviando il modulo dichiari di aver letto l'<a href="/privacy">informativa sulla privacy</a>.</p>
   <p class="form-msg" hidden></p>
 </form>
 
+<style>
+  .cform__privacy { font-size: .74rem; opacity: .8; margin: 8px 0 0; line-height: 1.5; }
+  .cform__privacy a { text-decoration: underline; }
+</style>
+
 <script>
   document.querySelectorAll<HTMLFormElement>('.cform').forEach((form) => {
     form.addEventListener('submit', async (e) => {

src/components/Footer.astro

@@ -14,6 +14,7 @@ const year = new Date().getFullYear();
       <p>{t('global.contact.address')}, {t('global.contact.city-line')}<br />{t('global.contact.phone')}<br /><a href={`mailto:${t('global.contact.email')}`}>{t('global.contact.email')}</a></p>
       <p class="ftr__hours">{t('global.hours.1')}</p>
       <p class="ftr__hours">{t('global.hours.2')}</p>
+      <p class="ftr__legal">IN-SANITY LAB S.R.L. — P. IVA 03927341200</p>
     </div>
     <nav aria-label="training">
       <T tag="footer.col.training-title" as="h4" />
@@ -30,7 +31,7 @@ const year = new Date().getFullYear();
   </div>
   <div class="ftr__bar">
     <div class="container ftr__bar-in">
-      <p>© {year} <T tag="footer.copyright" as="span" /></p>
+      <p>© {year} <T tag="footer.copyright" as="span" /> <span class="ftr__sep">·</span> <a href="/privacy">Privacy Policy</a> <span class="ftr__sep">·</span> <a href="/cookie-policy">Cookie Policy</a></p>
       <p>{t('footer.social-label')} {site.socials.map((s) => <a href={s.url} rel="noopener" target="_blank">{s.label}</a>)}</p>
     </div>
   </div>
@@ -44,6 +45,8 @@ const year = new Date().getFullYear();
   .ftr__grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.3fr; gap: 40px; padding-block: 70px; }
   .ftr__tag { font-family: var(--font-heading); font-size: .7rem; letter-spacing: .2em; color: #fff; }
   .ftr__hours { margin: 0; }
+  .ftr__legal { margin-top: 14px; font-size: .78rem; opacity: .8; }
+  .ftr__bar-in .ftr__sep { margin: 0 4px; opacity: .5; }
   .ftr__bar { border-top: 1px solid rgba(255,255,255,.08); padding-block: 18px; }
   .ftr__bar-in { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
   .ftr__bar-in a { display: inline; margin-left: 12px; }