fix(web-ui): playout fmtDuration no longer clobbers global asset duration formatter

screens-playout.jsx declared a top-level function fmtDuration(secs) that, in
the shared global script scope, overwrote data.jsx's fmtDuration(ms). After
the playout redesign loaded, normalizeAsset(duration_ms) hit the seconds-based
version, rendering every asset duration x1000 (15000ms shown as 4:10:00).
Rename the playout-local helpers to playoutFmtDur/playoutFmtTC.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

services/web-ui/public/screens-playout.jsx

@@ -36,7 +36,7 @@ async function poFetch(path, opts) {
 
 // ── Helpers ───────────────────────────────────────────────────────────────────
 
-function fmtDuration(secs) {
+function playoutFmtDur(secs) {
   if (!secs || secs < 0) return '—';
   const s = Math.floor(secs);
   const h = Math.floor(s / 3600);
@@ -47,7 +47,7 @@ function fmtDuration(secs) {
   return h > 0 ? `${h}:${mm}:${ssStr}` : `${m}:${ssStr}`;
 }
 
-function fmtTimecode(secs) {
+function playoutFmtTC(secs) {
   // HH:MM:SS:FF at 29.97 (rounded)
   const s = Math.floor(secs);
   const h = Math.floor(s / 3600);
@@ -317,7 +317,7 @@ function Playlist({ channel, playlistId, items, activeIndex, onReload }) {
       <div className="po-playlist-head">
         <span className="po-section-label">Playlist</span>
         <span className="mono muted" style={{ fontSize: 11, marginLeft: 'auto' }}>
-          {items.length} clip{items.length !== 1 ? 's' : ''} · {fmtDuration(totalSecs)}
+          {items.length} clip{items.length !== 1 ? 's' : ''} · {playoutFmtDur(totalSecs)}
         </span>
         {dropErr && <span className="po-drop-err">{dropErr}</span>}
       </div>
@@ -338,7 +338,7 @@ function Playlist({ channel, playlistId, items, activeIndex, onReload }) {
               {isActive ? <span className="po-pl-onair">▶</span> : index + 1}
             </span>
             <span className="po-pl-name">{it.clip_name || it.asset_id}</span>
-            <span className="mono po-pl-dur">{fmtDuration(dur)}</span>
+            <span className="mono po-pl-dur">{playoutFmtDur(dur)}</span>
             <span className={'badge po-pl-badge ' + (
               it.media_status === 'ready'   ? 'success' :
               it.media_status === 'staging' ? 'warn' :
@@ -552,7 +552,7 @@ function ProgramMonitor({ channel, engine, elapsed }) {
         )}
 
         {onAir && (
-          <div className="po-tc-overlay mono">{fmtTimecode(elapsed)}</div>
+          <div className="po-tc-overlay mono">{playoutFmtTC(elapsed)}</div>
         )}
 
         <div className="po-meters-wrap">
@@ -580,7 +580,7 @@ function ProgramMonitor({ channel, engine, elapsed }) {
               </span>
               {timeRemaining > 0 && (
                 <span className="po-clip-remain" title="Time remaining in clip">
-                  -{fmtDuration(timeRemaining)}
+                  -{playoutFmtDur(timeRemaining)}
                 </span>
               )}
               {engine.loop && <span title="Loop">↺</span>}
@@ -761,8 +761,8 @@ function NowPlayingCard({ engine, elapsed, items }) {
           <div className="po-nowplaying-fill" style={{ width: (progress * 100) + '%' }} />
         </div>
         <div className="po-nowplaying-times mono">
-          <span className="po-nowplaying-elapsed">{fmtDuration(elapsed)}</span>
+          <span className="po-nowplaying-elapsed">{playoutFmtDur(elapsed)}</span>
-          <span className="po-nowplaying-remain muted">-{fmtDuration(timeRemaining)}</span>
+          <span className="po-nowplaying-remain muted">-{playoutFmtDur(timeRemaining)}</span>
         </div>
       </div>
       {nextItem && (
@@ -813,7 +813,7 @@ function Timeline({ items, activeIndex, elapsed, breaks }) {
     <div className="po-tl">
       <div className="po-tl-head">
         <span className="po-section-label">Timeline</span>
-        <span className="mono muted" style={{ fontSize: 11 }}>{fmtDuration(totalSecs)} total</span>
+        <span className="mono muted" style={{ fontSize: 11 }}>{playoutFmtDur(totalSecs)} total</span>
       </div>
       <div className="po-tl-track-wrap">
         {activeIndex >= 0 && (
@@ -833,9 +833,9 @@ function Timeline({ items, activeIndex, elapsed, breaks }) {
               <div key={it.id}
                 className={'po-tl-clip' + (isActive ? ' po-tl-clip--active' : '')}
                 style={{ width: pct + '%', '--clip-color': color }}
-                title={`${it.clip_name || it.asset_id} · ${fmtDuration(dur)}`}>
+                title={`${it.clip_name || it.asset_id} · ${playoutFmtDur(dur)}`}>
                 <span className="po-tl-clip-name">{it.clip_name || it.asset_id}</span>
-                <span className="po-tl-clip-dur mono">{fmtDuration(dur)}</span>
+                <span className="po-tl-clip-dur mono">{playoutFmtDur(dur)}</span>
                 {it.media_status === 'staging' && (
                   <span className="po-tl-staging-dot" title="Staging…" />
                 )}
@@ -849,7 +849,7 @@ function Timeline({ items, activeIndex, elapsed, breaks }) {
         <div className="po-tl-ruler">
           {totalSecs > 0 && Array.from({ length: 5 }).map((_, i) => (
             <span key={i} className="po-tl-ruler-mark mono" style={{ left: (i * 25) + '%' }}>
-              {fmtDuration((totalSecs * i) / 4)}
+              {playoutFmtDur((totalSecs * i) / 4)}
             </span>
           ))}
         </div>
@@ -907,7 +907,7 @@ function AsRunDrawer({ channel, refreshKey, open, onClose }) {
                       <td>{r.clip_name || r.item_id || '—'}</td>
                       <td className="mono">
                         {r.duration_s != null
-                          ? fmtDuration(Number(r.duration_s))
+                          ? playoutFmtDur(Number(r.duration_s))
                           : (r.ended_at ? '—' : 'on air')}
                       </td>
                       <td className={'po-asrun-result po-asrun-' + (r.result || 'played')}>