fix: scrollbar su camp-list, pulite 155 campagne test

- camp-list con max-height:60vh + overflow-y:auto
- Rimosse 155 campagne test dal DB
- Rimossi 167 PG di test, 558 stati area

src/web/static/index.html

@@ -635,9 +635,14 @@ html, body {
 #welcome .camp-list {
   width: 100%;
   max-width: 420px;
+  max-height: 60vh;
+  overflow-y: auto;
   display: flex;
   flex-direction: column;
   gap: 8px;
+  scrollbar-width: thin;
+  scrollbar-color: var(--border) transparent;
+  padding-right: 4px;
 }
 #welcome .camp-btn {
   background: var(--bg-card);