feat(platform): streamline vehicle operations shell

vehicle-data-platform/apps/web/src/styles/global.css

@@ -92,9 +92,10 @@ body {
 
 .vp-topbar {
   height: var(--vp-shell-header);
-  display: flex;
+  display: grid;
+  grid-template-columns: minmax(380px, 0.8fr) minmax(0, 1.2fr);
   align-items: center;
-  justify-content: space-between;
+  gap: 16px;
   padding: 0 24px;
   background: rgba(255, 255, 255, 0.9);
   border-bottom: 1px solid var(--vp-border);
@@ -104,6 +105,50 @@ body {
   z-index: 10;
 }
 
+.vp-topbar-search {
+  min-width: 0;
+}
+
+.vp-topbar-context {
+  min-width: 0;
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 8px;
+  white-space: nowrap;
+}
+
+.vp-topbar-quick-actions {
+  height: 32px;
+  display: inline-flex;
+  align-items: center;
+  padding: 2px;
+  border: 1px solid var(--vp-border);
+  border-radius: 8px;
+  background: #f8fafc;
+}
+
+.vp-topbar-quick-actions .semi-button {
+  min-width: 44px;
+  border: 0;
+  background: transparent;
+  color: var(--vp-text-muted);
+  font-size: 13px;
+  font-weight: 600;
+}
+
+.vp-topbar-quick-actions .semi-button:hover,
+.vp-topbar-quick-actions .semi-button:focus-visible {
+  background: #ffffff;
+  color: var(--vp-primary);
+}
+
+.vp-topbar-release {
+  color: var(--vp-text-subtle);
+  font-size: 12px;
+  line-height: 18px;
+}
+
 .vp-link-health-button-warning {
   color: var(--vp-warning);
   border-color: rgba(247, 144, 9, 0.45);