feat(platform): add realtime customer monitoring path

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

@@ -909,6 +909,92 @@ body {
   gap: 8px;
 }
 
+.vp-realtime-customer-board {
+  margin-bottom: 16px;
+  overflow: hidden;
+}
+
+.vp-realtime-customer-board .semi-card-body {
+  display: grid;
+  grid-template-columns: minmax(280px, 0.58fr) minmax(0, 1fr);
+}
+
+.vp-realtime-customer-summary {
+  padding: 18px;
+  border-right: 1px solid var(--vp-border);
+  background: #f8fbff;
+  display: grid;
+  gap: 12px;
+  align-content: start;
+}
+
+.vp-realtime-customer-steps {
+  padding: 16px;
+  display: grid;
+  grid-template-columns: repeat(5, minmax(0, 1fr));
+  gap: 10px;
+  background: #ffffff;
+}
+
+.vp-realtime-customer-step {
+  min-height: 152px;
+  padding: 12px;
+  border: 1px solid var(--vp-border);
+  border-radius: 8px;
+  background: #fbfcff;
+  text-align: left;
+  cursor: pointer;
+  font: inherit;
+  display: grid;
+  gap: 8px;
+  align-content: start;
+}
+
+.vp-realtime-customer-step:hover,
+.vp-realtime-customer-step:focus-visible {
+  border-color: rgba(22, 100, 255, 0.45);
+  box-shadow: var(--vp-shadow-sm);
+  outline: none;
+}
+
+.vp-realtime-customer-step:disabled {
+  cursor: not-allowed;
+  opacity: 0.62;
+}
+
+.vp-realtime-customer-step > span {
+  width: 28px;
+  height: 28px;
+  border-radius: 50%;
+  background: #1664ff;
+  color: #fff;
+  font-size: 12px;
+  font-weight: 700;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.vp-realtime-customer-step strong {
+  color: var(--vp-text);
+  font-size: 18px;
+  line-height: 24px;
+}
+
+.vp-realtime-customer-step small {
+  color: var(--vp-text-muted);
+  font-size: 12px;
+  line-height: 18px;
+}
+
+.vp-realtime-customer-step em {
+  color: #1664ff;
+  font-style: normal;
+  font-size: 12px;
+  font-weight: 600;
+  align-self: end;
+}
+
 .vp-realtime-command-board {
   margin-bottom: 16px;
   padding: 14px;
@@ -4529,6 +4615,8 @@ button.vp-realtime-command-item:focus-visible {
   .vp-time-review-grid,
   .vp-time-audit-strip,
   .vp-time-audit-grid,
+  .vp-realtime-customer-board .semi-card-body,
+  .vp-realtime-customer-steps,
   .vp-realtime-command-board,
   .vp-realtime-command-grid,
   .vp-realtime-impact-board,