fix(web): address review feedback on the monitoring column (#1616)

- ResizeHandle: clear the `resizing-col` body class on unmount so a drag
  interrupted by the handle unmounting (narrow past the breakpoint / disconnect)
  can't leave page-wide user-select:none / col-resize applied.
- Embedded monitor column now shows the full unfiltered stream instead of
  silently mirroring the full-size screen's live filter (the column has no
  filter control to explain an empty/partial list).
- MonitoringControls: give the SegmentedControl an aria-label ("Monitoring
  screen") so the tab group has an accessible name.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

clients/web/src/components/groups/NetworkStreamPanel/NetworkStreamPanel.tsx

@@ -98,13 +98,17 @@ export function NetworkStreamPanel({
 }: NetworkStreamPanelProps) {
   const viewportRef = useScrollMemory("network-stream");
   const filteredEntries = useMemo(() => {
-    // `.filter()` returns a fresh array, so sorting in-place is safe.
+    // Embedded column: show the full stream (no filter sidebar to explain a
+    // mirrored filter). See LogStreamPanel (#1616). `.filter()` returns a fresh
+    // array, so sorting in-place is safe.
     const sorted = entries
-      .filter((e) => matchesFilters(e, filterText, visibleCategories))
+      .filter(
+        (e) => embedded || matchesFilters(e, filterText, visibleCategories),
+      )
       .sort((a, b) => a.timestamp.getTime() - b.timestamp.getTime());
     if (sortDirection === "newest-first") sorted.reverse();
     return sorted;
-  }, [entries, filterText, visibleCategories, sortDirection]);
+  }, [entries, filterText, visibleCategories, sortDirection, embedded]);
 
   const hasEntries = entries.length > 0;
   const hasResults = filteredEntries.length > 0;