Streamline the Replay view with the Control view

Page title is now "{session name} - Replay" (matching generateMetadata)
instead of a bare "Replay" heading with the name duplicated inside a
Card title. Dropped that redundant outer Card - the pre-connection
scan/match buttons now sit in a flat row below the header, same as
Control's scan/record row, with the same "no devices connected" hint
card shown underneath when nothing's connected yet. Playback controls
once a replay starts still live in a card, matching DeviceCard's style.
Also gave "Match & replay" a Play icon.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WzyfRyA7h5rs5SCAahLAWd

app/(app)/sessions/[id]/replay/page.tsx

@@ -5,14 +5,21 @@ import { getSessionName } from "@/lib/db/queries/sessions";
 export async function generateMetadata({ params }: { params: Promise<{ id: string }> }): Promise<Metadata> {
   const { id } = await params;
   const name = await getSessionName(Number(id));
-  return { title: name ? `Replay ${name}` : "Replay" };
+  return { title: name ? `${name} - Replay` : "Replay" };
 }
 
 export default async function ReplayPage({ params }: { params: Promise<{ id: string }> }) {
   const { id } = await params;
+  const name = await getSessionName(Number(id));
   return (
     <div className="flex flex-col gap-6">
-      <h1 className="font-heading text-2xl font-semibold">Replay</h1>
+      <div>
+        <h1 className="font-heading text-2xl font-semibold">{name ?? `Session #${id}`} - Replay</h1>
+        <p className="text-sm text-muted-foreground">
+          Connect the devices you want to replay onto, then match them to this session&apos;s original device
+          slots and play its recorded intensity back live over Web Bluetooth.
+        </p>
+      </div>
       <ReplayPlayerLoader sessionId={Number(id)} />
     </div>
   );

components/sessions/ReplayPlayer.tsx

@@ -2,7 +2,7 @@
 
 import { useEffect, useMemo, useState } from "react";
 import { toast } from "sonner";
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Card, CardContent } from "@/components/ui/card";
 import { Button } from "@/components/ui/button";
 import { Slider } from "@/components/ui/slider";
 import { DeviceScanPanel } from "@/components/control/DeviceScanPanel";
@@ -137,18 +137,9 @@ export function ReplayPlayer({ sessionId }: { sessionId: number }) {
 
   return (
     <div className="flex flex-col gap-6">
-      <Card className="bp-glass">
-        <CardHeader>
-          <CardTitle>{data.session.name ?? `Session #${data.session.id}`}</CardTitle>
-        </CardHeader>
-        <CardContent className="flex flex-col gap-4">
       {!player ? (
         <>
-              <p className="text-sm text-muted-foreground">
-                Connect the devices you want to replay onto, then match them to the session&apos;s
-                original device slots.
-              </p>
-              <div className="flex items-center gap-3">
+          <div className="flex flex-wrap items-center gap-3">
             <DeviceScanPanel scanning={scanning} onScan={() => void startScanning()} onStopScan={() => void stopScanning()} />
             <Button
               onClick={async () => {
@@ -161,12 +152,28 @@ export function ReplayPlayer({ sessionId }: { sessionId: number }) {
               }}
               disabled={connectedDevices.length === 0 || starting}
             >
-                  {starting ? "Starting..." : "Match devices & replay"}
+              {starting ? (
+                "Starting..."
+              ) : (
+                <>
+                  <Play className="size-3.5" /> Match & replay
+                </>
+              )}
             </Button>
           </div>
+
+          {connectedDevices.length === 0 && (
+            <Card className="bp-glass">
+              <CardContent className="py-6 text-sm text-muted-foreground">
+                No devices connected yet. Scan to discover nearby toys, then match them to this session&apos;s
+                original device slots.
+              </CardContent>
+            </Card>
+          )}
         </>
       ) : (
-            <div className="flex flex-col gap-3">
+        <Card className="bp-glass">
+          <CardContent className="flex flex-col gap-3 py-6">
             {replayTargets.length > 0 && (
               <div className="flex flex-wrap gap-2">
                 {replayTargets.map((t) => (
@@ -184,7 +191,7 @@ export function ReplayPlayer({ sessionId }: { sessionId: number }) {
               max={data.session.durationMs}
               onValueChange={([v]) => player.seek(v)}
             />
-              <div className="flex items-center justify-between">
+            <div className="flex flex-wrap items-center justify-between gap-3">
               <span className="bp-readout text-xs text-muted-foreground">
                 {formatTime(elapsedMs)} / {formatTime(data.session.durationMs)}
               </span>
@@ -236,10 +243,9 @@ export function ReplayPlayer({ sessionId }: { sessionId: number }) {
                 </Button>
               </div>
             </div>
-            </div>
-          )}
           </CardContent>
         </Card>
+      )}
 
       <DeviceRemapDialog
         open={showRemap}