feat(web): compact two-line HistoryEntry/NetworkEntry for the narrow column (#1616)

In the pinned monitoring column (embedded), the single-line entry headers wrap
badly. Add compact two-line variants gated on `embedded`:

- HistoryEntry: line 1 = time + client/server badge + elapsed + status; line 2 =
  method (and target, truncated) on the left with the controls on the right,
  where Replay becomes an icon (new ReplayButton element) next to Pin/Expand.
- NetworkEntry: line 1 = time + HTTP method + category + elapsed + status; line 2
  = the URL in a horizontal ScrollArea (new Text `nowrap` variant) with the
  expand toggle on the right.

The full-size (non-embedded) layouts are unchanged. `embedded` is threaded from
the History/Network panels into the entries.

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

clients/web/src/components/elements/ReplayButton/ReplayButton.tsx

@@ -0,0 +1,26 @@
+import { ActionIcon } from "@mantine/core";
+import { MdReplay } from "react-icons/md";
+
+export interface ReplayButtonProps {
+  /** Re-send the owning history request. */
+  onReplay: () => void;
+}
+
+/**
+ * Icon form of the "Replay" action, used in the compact (column) HistoryEntry
+ * layout where the text button is replaced by a replay icon sitting next to the
+ * pin toggle (#1616). Matches PinToggle's subtle gray icon-button styling.
+ */
+export function ReplayButton({ onReplay }: ReplayButtonProps) {
+  return (
+    <ActionIcon
+      variant="subtle"
+      color="gray"
+      size="md"
+      aria-label="Replay"
+      onClick={onReplay}
+    >
+      <MdReplay size={18} />
+    </ActionIcon>
+  );
+}