Add time tracking to dispatch workflow

- timeSince utility: relative time display (2h ago, 3d ago)
- timeBetween utility: duration between two timestamps
- waitTimeColor utility: green (<4h), yellow (4-24h), red (>24h)
- Dispatch detail modal shows accepted time with duration
- Awaiting acceptance shows elapsed time with color coding
- Dispatches table shows Wait column with color-coded time for Sent dispatches

src/pages/workorders/view/WorkOrderViewPage.css

@@ -735,11 +735,19 @@
 }
 
 .dispatchWaiting {
-  color: #ffc107;
   font-weight: 500;
   font-size: 13px;
 }
 
+.dispatchWait-green { color: #28a745; }
+.dispatchWait-yellow { color: #ffc107; }
+.dispatchWait-red { color: #dc3545; }
+
+.dispatchWaitDot {
+  font-size: 12px;
+  font-weight: 600;
+}
+
 .dispatchChecklist {
   display: flex;
   flex-direction: column;

src/pages/workorders/view/WorkOrderViewPage.js

@@ -4,6 +4,7 @@ import { useParams, useNavigate } from "react-router";
 import { toast } from "react-toastify";
 import { getWorkOrderById, addComment, changeWorkOrderStatus, fetchUsers, changeWorkOrderAssignment, fetchVendorsDropdown, dispatchToVendor, getDispatchById, updateDispatch, addDispatchComment, fetchTaskTemplates, updateChecklistItem, addChecklistItem } from "../api";
 import { getCurrentUser } from "../../../services/authService";
+import { timeSince, timeBetween, waitTimeColor } from "../../../utils/timeSince";
 import "./WorkOrderViewPage.css";
 
 function AssignDropdown({ value, onAssign }) {
@@ -314,9 +315,9 @@ function DispatchDetailModal({ dispatchId, onClose, onUpdated }) {
                   <div className="dispatchDetailField">
                     <label>Accepted</label>
                     {dispatch.acknowledgedAt ? (
-                      <span style={{ color: "#28a745" }}>{formatDateTime(dispatch.acknowledgedAt)}</span>
+                      <span style={{ color: "#28a745" }}>{formatDateTime(dispatch.acknowledgedAt)} (after {timeBetween(dispatch.dispatchedAt, dispatch.acknowledgedAt)})</span>
                     ) : dispatch.status === "Sent" ? (
-                      <span className="dispatchWaiting">Awaiting acceptance</span>
+                      <span className={`dispatchWaiting dispatchWait-${waitTimeColor(dispatch.dispatchedAt)}`}>Awaiting acceptance · {timeSince(dispatch.dispatchedAt)}</span>
                     ) : (
                       <span>—</span>
                     )}
@@ -883,7 +884,7 @@ export default function WorkOrderViewPage() {
               {wo.dispatches?.length ? (
                 <table className="woDispatchTable">
                   <thead>
-                    <tr><th>Dispatch #</th><th>Vendor</th><th>NTE</th><th>Status</th><th>Date</th></tr>
+                    <tr><th>Dispatch #</th><th>Vendor</th><th>NTE</th><th>Status</th><th>Date</th><th>Wait</th></tr>
                   </thead>
                   <tbody>
                     {wo.dispatches.map(d => (
@@ -893,6 +894,7 @@ export default function WorkOrderViewPage() {
                         <td>{d.nteAmount != null ? `$${parseFloat(d.nteAmount).toFixed(2)}` : "—"}</td>
                         <td><span className={`woDispatchStatus ${(d.status || "").toLowerCase()}`}>{d.status}</span></td>
                         <td>{d.dispatchedAt ? formatDateTime(d.dispatchedAt) : "—"}</td>
+                        <td>{d.status === "Sent" ? <span className={`dispatchWaitDot dispatchWait-${waitTimeColor(d.dispatchedAt)}`}>{timeSince(d.dispatchedAt)}</span> : "—"}</td>
                       </tr>
                     ))}
                   </tbody>

src/utils/timeSince.js

@@ -0,0 +1,38 @@
+export function timeSince(dateString) {
+  if (!dateString) return "";
+  const d = new Date(dateString.endsWith("Z") ? dateString : dateString + "Z");
+  if (isNaN(d)) return "";
+  const now = new Date();
+  const diffMs = now - d;
+  const mins = Math.floor(diffMs / 60000);
+  if (mins < 1) return "just now";
+  if (mins < 60) return `${mins}m ago`;
+  const hours = Math.floor(mins / 60);
+  if (hours < 24) return `${hours}h ago`;
+  const days = Math.floor(hours / 24);
+  if (days < 7) return `${days}d ago`;
+  return `${Math.floor(days / 7)}w ago`;
+}
+
+export function timeBetween(startStr, endStr) {
+  if (!startStr || !endStr) return "";
+  const start = new Date(startStr.endsWith("Z") ? startStr : startStr + "Z");
+  const end = new Date(endStr.endsWith("Z") ? endStr : endStr + "Z");
+  if (isNaN(start) || isNaN(end)) return "";
+  const diffMs = end - start;
+  const mins = Math.floor(diffMs / 60000);
+  if (mins < 60) return `${mins}m`;
+  const hours = Math.floor(mins / 60);
+  if (hours < 24) return `${hours}h`;
+  const days = Math.floor(hours / 24);
+  return `${days}d`;
+}
+
+export function waitTimeColor(dateString) {
+  if (!dateString) return "";
+  const d = new Date(dateString.endsWith("Z") ? dateString : dateString + "Z");
+  const hours = (new Date() - d) / 3600000;
+  if (hours < 4) return "green";
+  if (hours < 24) return "yellow";
+  return "red";
+}