refactor: fold yt-dlp update controls into existing Health card, remove standalone section

src/frontend/src/components/HealthStatus.tsx

@@ -1,6 +1,9 @@
-import { AlertTriangle, CheckCircle2, HardDrive, Play, Square, Terminal } from 'lucide-react';
+import { useState } from 'react';
+import { AlertTriangle, CheckCircle2, HardDrive, Loader2, Play, RefreshCw, Square, Terminal, CheckCircle, AlertCircle } from 'lucide-react';
 import type { ComponentHealth } from '@shared/types/api';
 import { formatBytes } from '../utils/format';
+import type { YtDlpStatusResponse, YtDlpUpdateResponse } from '@shared/types/api';
+import type { UseMutationResult } from '@tanstack/react-query';
 
 // ── Status → color mapping ──
 
@@ -27,9 +30,12 @@ const COMPONENT_LABELS: Record<string, string> = {
 interface HealthStatusProps {
   components: ComponentHealth[];
   overallStatus: 'healthy' | 'degraded' | 'unhealthy';
+  ytdlpStatus?: YtDlpStatusResponse | null;
+  ytdlpLoading?: boolean;
+  updateYtDlp?: UseMutationResult<YtDlpUpdateResponse, Error, void>;
 }
 
-export function HealthStatus({ components, overallStatus }: HealthStatusProps) {
+export function HealthStatus({ components, overallStatus, ytdlpStatus, ytdlpLoading, updateYtDlp }: HealthStatusProps) {
   const overallColors = STATUS_COLORS[overallStatus] ?? DEFAULT_COLORS;
   const overallLabel = overallStatus.charAt(0).toUpperCase() + overallStatus.slice(1);
 
@@ -74,7 +80,13 @@ export function HealthStatus({ components, overallStatus }: HealthStatusProps) {
         }}
       >
         {components.map((comp) => (
-          <ComponentCard key={comp.name} component={comp} />
+          <ComponentCard
+            key={comp.name}
+            component={comp}
+            ytdlpStatus={comp.name === 'ytDlp' ? ytdlpStatus : undefined}
+            ytdlpLoading={comp.name === 'ytDlp' ? ytdlpLoading : undefined}
+            updateYtDlp={comp.name === 'ytDlp' ? updateYtDlp : undefined}
+          />
         ))}
       </div>
 
@@ -98,7 +110,12 @@ export function HealthStatus({ components, overallStatus }: HealthStatusProps) {
 
 // ── Component Card ──
 
-function ComponentCard({ component }: { component: ComponentHealth }) {
+function ComponentCard({ component, ytdlpStatus, ytdlpLoading, updateYtDlp }: {
+  component: ComponentHealth;
+  ytdlpStatus?: YtDlpStatusResponse | null;
+  ytdlpLoading?: boolean;
+  updateYtDlp?: UseMutationResult<YtDlpUpdateResponse, Error, void>;
+}) {
   const colors = STATUS_COLORS[component.status] ?? DEFAULT_COLORS;
   const label = COMPONENT_LABELS[component.name] ?? component.name;
 
@@ -142,20 +159,24 @@ function ComponentCard({ component }: { component: ComponentHealth }) {
         </span>
       </div>
 
-      {/* Custom detail rendering per component type */}
-      <ComponentDetail component={component} />
+      <ComponentDetail component={component} ytdlpStatus={ytdlpStatus} ytdlpLoading={ytdlpLoading} updateYtDlp={updateYtDlp} />
     </div>
   );
 }
 
 // ── Detail Renderers ──
 
-function ComponentDetail({ component }: { component: ComponentHealth }) {
+function ComponentDetail({ component, ytdlpStatus, ytdlpLoading, updateYtDlp }: {
+  component: ComponentHealth;
+  ytdlpStatus?: YtDlpStatusResponse | null;
+  ytdlpLoading?: boolean;
+  updateYtDlp?: UseMutationResult<YtDlpUpdateResponse, Error, void>;
+}) {
   switch (component.name) {
     case 'diskSpace':
       return <DiskSpaceDetail component={component} />;
     case 'ytDlp':
-      return <YtDlpDetail component={component} />;
+      return <YtDlpDetail component={component} ytdlpStatus={ytdlpStatus} ytdlpLoading={ytdlpLoading} updateYtDlp={updateYtDlp} />;
     case 'scheduler':
       return <SchedulerDetail component={component} />;
     case 'recentErrors':
@@ -233,30 +254,101 @@ function DiskSpaceDetail({ component }: { component: ComponentHealth }) {
 
 // ── yt-dlp ──
 
-function YtDlpDetail({ component }: { component: ComponentHealth }) {
+function YtDlpDetail({ component, ytdlpStatus, ytdlpLoading, updateYtDlp }: {
+  component: ComponentHealth;
+  ytdlpStatus?: YtDlpStatusResponse | null;
+  ytdlpLoading?: boolean;
+  updateYtDlp?: UseMutationResult<YtDlpUpdateResponse, Error, void>;
+}) {
+  const [updateMessage, setUpdateMessage] = useState<{ type: 'success' | 'error'; text: string } | null>(null);
   const details = component.details as { version?: string } | undefined;
 
   return (
-    <div style={{ display: 'flex', alignItems: 'center', gap: 'var(--space-2)' }}>
-      <Terminal size={14} style={{ color: 'var(--text-muted)' }} aria-hidden="true" />
-      {details?.version ? (
-        <span
-          style={{
-            fontSize: 'var(--font-size-sm)',
-            fontFamily: 'var(--font-mono)',
-            color: 'var(--text-secondary)',
-            padding: '1px var(--space-2)',
-            borderRadius: 'var(--radius-sm)',
-            backgroundColor: 'var(--bg-hover)',
-          }}
-        >
-          v{details.version}
-        </span>
-      ) : (
-        <span style={{ fontSize: 'var(--font-size-sm)', color: 'var(--danger)', display: 'flex', alignItems: 'center', gap: 'var(--space-1)' }}>
-          <AlertTriangle size={12} aria-hidden="true" />
-          Not installed
-        </span>
+    <div style={{ display: 'flex', flexDirection: 'column', gap: 'var(--space-3)' }}>
+      {/* Version */}
+      <div style={{ display: 'flex', alignItems: 'center', gap: 'var(--space-2)' }}>
+        <Terminal size={14} style={{ color: 'var(--text-muted)' }} aria-hidden="true" />
+        {details?.version ? (
+          <span
+            style={{
+              fontSize: 'var(--font-size-sm)',
+              fontFamily: 'var(--font-mono)',
+              color: 'var(--text-secondary)',
+              padding: '1px var(--space-2)',
+              borderRadius: 'var(--radius-sm)',
+              backgroundColor: 'var(--bg-hover)',
+            }}
+          >
+            v{details.version}
+          </span>
+        ) : (
+          <span style={{ fontSize: 'var(--font-size-sm)', color: 'var(--danger)', display: 'flex', alignItems: 'center', gap: 'var(--space-1)' }}>
+            <AlertTriangle size={12} aria-hidden="true" />
+            Not installed
+          </span>
+        )}
+      </div>
+
+      {/* Last Updated */}
+      {!ytdlpLoading && ytdlpStatus && (
+        <div style={{ fontSize: 'var(--font-size-xs)', color: 'var(--text-muted)' }}>
+          Last checked: {ytdlpStatus.lastUpdated ? new Date(ytdlpStatus.lastUpdated).toLocaleString() : 'Never'}
+        </div>
+      )}
+
+      {/* Update button */}
+      {updateYtDlp && (
+        <div style={{ display: 'flex', alignItems: 'center', gap: 'var(--space-2)', flexWrap: 'wrap' }}>
+          <button
+            className="btn btn-ghost"
+            style={{ fontSize: 'var(--font-size-xs)', padding: '2px var(--space-2)' }}
+            disabled={updateYtDlp.isPending}
+            onClick={() => {
+              setUpdateMessage(null);
+              updateYtDlp.mutate(undefined, {
+                onSuccess: (data) => {
+                  setUpdateMessage({
+                    type: 'success',
+                    text: data.updated
+                      ? `Updated to ${data.version}`
+                      : `Up to date`,
+                  });
+                },
+                onError: (err) => {
+                  setUpdateMessage({
+                    type: 'error',
+                    text: err instanceof Error ? err.message : 'Update failed',
+                  });
+                },
+              });
+            }}
+          >
+            {updateYtDlp.isPending ? (
+              <>
+                <Loader2 size={12} className="animate-spin" />
+                Checking…
+              </>
+            ) : (
+              <>
+                <RefreshCw size={12} />
+                Check for Updates
+              </>
+            )}
+          </button>
+
+          {updateMessage && (
+            <span style={{
+              display: 'inline-flex',
+              alignItems: 'center',
+              gap: '4px',
+              fontSize: 'var(--font-size-xs)',
+              color: updateMessage.type === 'success' ? 'var(--success)' : 'var(--danger)',
+            }}>
+              {updateMessage.type === 'success' ? <CheckCircle size={12} /> : <AlertCircle size={12} />}
+              {updateMessage.text}
+            </span>
+          )}
+        </div>
       )}
     </div>
   );

src/frontend/src/pages/System.tsx

@@ -1,11 +1,9 @@
-import { RefreshCw, Server, Activity, Cpu, HardDrive, Download, CheckCircle, AlertCircle, Loader2 } from 'lucide-react';
+import { RefreshCw, Server, Activity, Cpu, HardDrive } from 'lucide-react';
 import { useSystemStatus, useHealth, useYtDlpStatus, useUpdateYtDlp } from '../api/hooks/useSystem';
 import { HealthStatus } from '../components/HealthStatus';
 import { SkeletonSystem } from '../components/Skeleton';
 import { formatBytes } from '../utils/format';
 
-import { useState } from 'react';
-
 // ── Helpers ──
 
 function formatUptime(seconds: number): string {
@@ -25,9 +23,8 @@ function formatUptime(seconds: number): string {
 export function SystemPage() {
   const { data: health, isLoading: healthLoading, error: healthError, refetch: refetchHealth } = useHealth();
   const { data: status, isLoading: statusLoading, error: statusError, refetch: refetchStatus } = useSystemStatus();
-  const { data: ytdlpStatus, isLoading: ytdlpLoading, error: ytdlpError } = useYtDlpStatus();
+  const { data: ytdlpStatus, isLoading: ytdlpLoading } = useYtDlpStatus();
   const updateYtDlp = useUpdateYtDlp();
-  const [updateMessage, setUpdateMessage] = useState<{ type: 'success' | 'error'; text: string } | null>(null);
 
   const isLoading = healthLoading || statusLoading;
 
@@ -85,109 +82,16 @@ export function SystemPage() {
             </button>
           </div>
         ) : health ? (
-          <HealthStatus components={health.components} overallStatus={health.status} />
+          <HealthStatus
+            components={health.components}
+            overallStatus={health.status}
+            ytdlpStatus={ytdlpStatus ?? null}
+            ytdlpLoading={ytdlpLoading}
+            updateYtDlp={updateYtDlp}
+          />
         ) : null}
       </section>
 
-      {/* ── yt-dlp section ── */}
-      <section style={{ marginBottom: 'var(--space-8)' }}>
-        <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', marginBottom: 'var(--space-4)' }}>
-          <h2 style={{ display: 'flex', alignItems: 'center', gap: 'var(--space-2)', fontSize: 'var(--font-size-lg)', fontWeight: 600, color: 'var(--text-primary)' }}>
-            <Download size={18} style={{ color: 'var(--accent)' }} />
-            yt-dlp
-          </h2>
-        </div>
-
-        <div
-          style={{
-            backgroundColor: 'var(--bg-card)',
-            borderRadius: 'var(--radius-lg)',
-            border: '1px solid var(--border)',
-            padding: 'var(--space-4)',
-          }}
-        >
-          {ytdlpLoading ? (
-            <p style={{ color: 'var(--text-muted)' }}>Loading yt-dlp status…</p>
-          ) : ytdlpError ? (
-            <p style={{ color: 'var(--danger)' }}>
-              Failed to load yt-dlp status: {ytdlpError instanceof Error ? ytdlpError.message : 'Unknown error'}
-            </p>
-          ) : (
-            <>
-              <div style={{ display: 'flex', gap: 'var(--space-6)', marginBottom: 'var(--space-4)' }}>
-                <div>
-                  <span style={{ fontSize: 'var(--font-size-xs)', color: 'var(--text-muted)', textTransform: 'uppercase', letterSpacing: '0.05em' }}>Version</span>
-                  <p style={{ fontFamily: 'var(--font-mono)', fontSize: 'var(--font-size-sm)', color: 'var(--text-primary)', marginTop: 'var(--space-1)' }}>
-                    {ytdlpStatus?.version ?? 'Unknown'}
-                  </p>
-                </div>
-                <div>
-                  <span style={{ fontSize: 'var(--font-size-xs)', color: 'var(--text-muted)', textTransform: 'uppercase', letterSpacing: '0.05em' }}>Last Updated</span>
-                  <p style={{ fontFamily: 'var(--font-mono)', fontSize: 'var(--font-size-sm)', color: 'var(--text-primary)', marginTop: 'var(--space-1)' }}>
-                    {ytdlpStatus?.lastUpdated ? new Date(ytdlpStatus.lastUpdated).toLocaleString() : 'Never'}
-                  </p>
-                </div>
-              </div>
-
-              <div style={{ display: 'flex', alignItems: 'center', gap: 'var(--space-3)' }}>
-                <button
-                  className="btn btn-secondary"
-                  disabled={updateYtDlp.isPending}
-                  onClick={() => {
-                    setUpdateMessage(null);
-                    updateYtDlp.mutate(undefined, {
-                      onSuccess: (data) => {
-                        setUpdateMessage({
-                          type: 'success',
-                          text: data.updated
-                            ? `Updated to ${data.version} (was ${data.previousVersion})`
-                            : `Already up to date (${data.version})`,
-                        });
-                      },
-                      onError: (err) => {
-                        setUpdateMessage({
-                          type: 'error',
-                          text: err instanceof Error ? err.message : 'Update failed',
-                        });
-                      },
-                    });
-                  }}
-                >
-                  {updateYtDlp.isPending ? (
-                    <>
-                      <Loader2 size={14} className="animate-spin" />
-                      Updating…
-                    </>
-                  ) : (
-                    <>
-                      <RefreshCw size={14} />
-                      Check for Updates
-                    </>
-                  )}
-                </button>
-
-                {updateMessage && (
-                  <span style={{
-                    display: 'inline-flex',
-                    alignItems: 'center',
-                    gap: 'var(--space-1)',
-                    fontSize: 'var(--font-size-sm)',
-                    color: updateMessage.type === 'success' ? 'var(--success)' : 'var(--danger)',
-                  }}>
-                    {updateMessage.type === 'success' ? <CheckCircle size={14} /> : <AlertCircle size={14} />}
-                    {updateMessage.text}
-                  </span>
-                )}
-              </div>
-            </>
-          )}
-        </div>
-
-        <p style={{ color: 'var(--text-muted)', fontSize: 'var(--font-size-xs)', marginTop: 'var(--space-2)' }}>
-          Auto-refreshes every 60 seconds.
-        </p>
-      </section>
-
       {/* ── System Status section ── */}
       <section>
         <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', marginBottom: 'var(--space-4)' }}>