style(selos): aplicar estilo monocromático nos selos da listagem

- Selos compactos agora usam tons de slate/cinza
- Emojis com filtro grayscale para visual uniforme
- Selos completos (internos) mantêm cores originais

frontend/src/components/ConsultorCard.css

@@ -578,6 +578,28 @@
   margin-left: 0.3rem;
 }
 
+.selos-compacto .selo {
+  background: rgba(148, 163, 184, 0.12);
+  border-color: rgba(148, 163, 184, 0.25);
+  color: #94a3b8;
+}
+
+.selos-compacto .selo:hover {
+  background: rgba(148, 163, 184, 0.2);
+  border-color: rgba(148, 163, 184, 0.4);
+  color: #cbd5e1;
+}
+
+.selos-compacto .selo-icone {
+  filter: grayscale(100%) brightness(1.2);
+  opacity: 0.85;
+}
+
+.selos-compacto .selo-qtd {
+  background: rgba(148, 163, 184, 0.25);
+  color: #cbd5e1;
+}
+
 .selo {
   display: inline-flex;
   align-items: center;