Optimize simulation with logic-only solver, fix rectangular grid support, and improve worker pool

src/components/Hints.vue

@@ -58,13 +58,13 @@ defineProps({
 
 .hints-container.col {
   padding-bottom: var(--grid-padding);
-  align-items: flex-end;
+  /* align-items: flex-end; - Removed to ensure uniform column height */
   padding-left: var(--grid-padding);
   padding-right: var(--grid-padding);
 }
 
 .hints-container.row {
-  align-items: flex-end;
+  /* align-items: flex-end; - Removed to ensure row hints fill the cell height */
   padding: var(--grid-padding) var(--grid-padding) var(--grid-padding) 0;
   width: max-content;
 }
@@ -99,6 +99,21 @@ defineProps({
   padding: 2px;
 }
 
+@media (max-width: 768px) {
+    .hint-num {
+        font-size: 0.7rem;
+        padding: 1px;
+    }
+    
+    .col .hint-group {
+        padding: 2px 0;
+    }
+    
+    .row .hint-group {
+        padding: 0 4px;
+    }
+}
+
 /* Alternating Colors within the group */
 .hint-num.hint-alt {
     color: var(--accent-cyan);