Split activity into customer and vendor comment tabs

- Extract CommentTimeline into reusable component
- Filter comments: customer (from ingest pipeline, has recordType/commenter)
  vs vendor (internal, has userName from ApplicationUser)
- Add tab UI to switch between streams with counts
- Format comment timestamps with formatDateTime
- Show "No comments yet" when a tab is empty

src/pages/workorders/view/WorkOrderViewPage.css

@@ -126,6 +126,41 @@
   line-height: 1.5;
 }
 
+.woCommentTabs {
+  display: flex;
+  gap: 0;
+  margin-bottom: 16px;
+  border-bottom: 2px solid #e5e5e5;
+}
+
+.woCommentTab {
+  padding: 8px 20px;
+  border: none;
+  background: none;
+  font-size: 13px;
+  font-weight: 600;
+  color: #999;
+  cursor: pointer;
+  border-bottom: 2px solid transparent;
+  margin-bottom: -2px;
+}
+
+.woCommentTab:hover {
+  color: #333;
+}
+
+.woCommentTab.active {
+  color: #007bff;
+  border-bottom-color: #007bff;
+}
+
+.woNoComments {
+  font-size: 13px;
+  color: #999;
+  padding: 20px 0;
+  text-align: center;
+}
+
 .loading {
   padding: 40px;
   text-align: center;

src/pages/workorders/view/WorkOrderViewPage.js

@@ -13,11 +13,34 @@ function formatDateTime(value) {
   return `${date} ${time} ${tz}`;
 }
 
+function CommentTimeline({ comments }) {
+  if (!comments || comments.length === 0) {
+    return <p className="woNoComments">No comments yet.</p>;
+  }
+
+  return (
+    <div className="woTimeline">
+      {comments.map((c) => (
+        <div key={c.id} className="woTimelineItem">
+          <div className="woTimelineHeader">
+            <span className="woTimelineAuthor">{c.userName || c.commenter || "System"}</span>
+            <span className="woTimelineDate">
+              {c.createdDate ? formatDateTime(c.createdDate) : ""}
+            </span>
+          </div>
+          <div className="woTimelineBody">{c.commenttext}</div>
+        </div>
+      ))}
+    </div>
+  );
+}
+
 export default function WorkOrderViewPage() {
   const { id } = useParams();
   const navigate = useNavigate();
   const [wo, setWo] = useState(null);
   const [loading, setLoading] = useState(true);
+  const [commentTab, setCommentTab] = useState("customer");
 
   useEffect(() => {
     const load = async () => {
@@ -38,6 +61,13 @@ export default function WorkOrderViewPage() {
 
   const statusClass = (wo.status || "").toLowerCase().replace(/\s+/g, "-");
 
+  const customerComments = (wo.comments || []).filter(
+    (c) => c.recordType || c.commenter
+  );
+  const vendorComments = (wo.comments || []).filter(
+    (c) => !c.recordType && !c.commenter && c.userName
+  );
+
   return (
     <div className="woViewPage">
       <div className="panel panel-default panel-connected">
@@ -112,24 +142,26 @@ export default function WorkOrderViewPage() {
               <p className="woDescription">{wo.description || "No description provided."}</p>
             </div>
 
-            {wo.comments && wo.comments.length > 0 && (
-              <div className="woViewSection">
-                <h4>Activity ({wo.comments.length})</h4>
-                <div className="woTimeline">
-                  {wo.comments.map((c) => (
-                    <div key={c.id} className="woTimelineItem">
-                      <div className="woTimelineHeader">
-                        <span className="woTimelineAuthor">{c.userName || c.commenter || "System"}</span>
-                        <span className="woTimelineDate">
-                          {c.createdDate ? new Date(c.createdDate).toLocaleString() : ""}
-                        </span>
-                      </div>
-                      <div className="woTimelineBody">{c.commenttext}</div>
-                    </div>
-                  ))}
-                </div>
+            <div className="woViewSection">
+              <h4>Activity</h4>
+              <div className="woCommentTabs">
+                <button
+                  className={`woCommentTab ${commentTab === "customer" ? "active" : ""}`}
+                  onClick={() => setCommentTab("customer")}
+                >
+                  Customer ({customerComments.length})
+                </button>
+                <button
+                  className={`woCommentTab ${commentTab === "vendor" ? "active" : ""}`}
+                  onClick={() => setCommentTab("vendor")}
+                >
+                  Vendor ({vendorComments.length})
+                </button>
               </div>
-            )}
+              <CommentTimeline
+                comments={commentTab === "customer" ? customerComments : vendorComments}
+              />
+            </div>
           </div>
         </div>
       </div>