feat: CTA orientação no WhatsApp para indecisos (MAN-127)

Banda de modalidades passa a abrir wa.me com mensagem distinta (fallback /briefing). Glossário canônico vive em SPEC.md §8.0.

Co-authored-by: Cursor <cursoragent@cursor.com>

resources/views/components/home/packages.blade.php

@@ -15,7 +15,9 @@
 ])
 
 @php
-    $bandHref = $bandCtaHref ?? route('briefing');
+    $orientationLink = \App\Support\PackageContactLink::forOrientation($settings);
+    $bandHref = $bandCtaHref ?? $orientationLink['href'];
+    $bandIsWhatsapp = $bandCtaHref === null && $orientationLink['isWhatsapp'];
 @endphp
 <section
     aria-labelledby="packages-heading"
@@ -77,7 +79,11 @@
                 <h3 class="text-[clamp(1.5625rem,2.7vw,2.125rem)] font-medium leading-tight">Ainda não sabe qual modalidade é ideal?</h3>
                 <p class="text-amare-accent-text/80">{{ $bandBody }}</p>
             </div>
-            <a href="{{ $bandHref }}" class="inline-flex min-h-[48px] items-center justify-center self-start border border-amare-accent-text px-6 text-xs font-bold uppercase tracking-[0.09em] text-amare-accent-text transition-colors hover:bg-amare-accent-text hover:text-amare-accent-deep md:self-auto">
+            <a
+                href="{{ $bandHref }}"
+                @if ($bandIsWhatsapp) target="_blank" rel="noopener noreferrer" @endif
+                class="inline-flex min-h-[48px] items-center justify-center self-start border border-amare-accent-text px-6 text-xs font-bold uppercase tracking-[0.09em] text-amare-accent-text transition-colors hover:bg-amare-accent-text hover:text-amare-accent-deep md:self-auto"
+            >
                 Conversar com a Amare
             </a>
         </div>