Add map area selection extraction

frontend/src/styles/app.css

@@ -2599,6 +2599,76 @@ button.entity-card {
   margin-bottom: 0.75rem;
 }
 
+.bbox-select-surface {
+  display: grid;
+  gap: 0.72rem;
+  min-width: 0;
+  margin-bottom: 0.85rem;
+  border: 1px solid rgba(3, 105, 161, 0.24);
+  border-left: 4px solid #0369a1;
+  border-radius: 8px;
+  padding: 0.72rem;
+  background: linear-gradient(180deg, #ffffff, #f6fbff);
+}
+
+.bbox-select-surface .panel-title-row {
+  margin-bottom: 0;
+}
+
+.bbox-select-status {
+  display: grid;
+  gap: 0.22rem;
+  border: 1px solid var(--line);
+  border-radius: 7px;
+  padding: 0.58rem 0.66rem;
+  background: #ffffff;
+}
+
+.bbox-select-status span {
+  color: var(--muted);
+  font-size: 0.72rem;
+  font-weight: 850;
+  letter-spacing: 0.05em;
+  text-transform: uppercase;
+}
+
+.bbox-select-status strong {
+  overflow-wrap: anywhere;
+  font-size: 0.9rem;
+  line-height: 1.3;
+}
+
+.bbox-select-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
+  gap: 0.5rem;
+}
+
+.bbox-select-grid label {
+  min-width: 0;
+}
+
+.bbox-select-actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.5rem;
+  align-items: center;
+}
+
+.bbox-select-actions button {
+  width: fit-content;
+  max-width: 100%;
+  margin-top: 0;
+}
+
+.bbox-selection-result {
+  display: grid;
+  gap: 0.64rem;
+  min-width: 0;
+  border-top: 1px solid var(--line);
+  padding-top: 0.68rem;
+}
+
 .feature-extract-surface {
   display: grid;
   gap: 0.7rem;