feat: Full audio player with controls and scrubber

Player.tsx completely rewritten with professional controls:
- Play/Pause: large circular button with play/pause icons
- Stop: square icon, resets audio to 0 and pauses
- Restart: circular arrow, jumps to beginning and plays
- Time display: elapsed / total (M:SS format, tabular-nums)
- Scrubber: clickable progress bar with drag support
  - Visual progress fill (lyria-accent)
  - White scrubber handle on hover
  - Mouse drag anywhere on page while holding
- Volume: mute toggle + range slider (0-1, step 0.01)
  - Three volume icons: full, half, muted
  - Custom styled range input with white thumb
- Track info: title or prompt (hidden on mobile)
- Close button: X icon
- All buttons have title tooltips
- Uses useRef for audio element, useState for UI state
- useCallback for seek handler, useEffect for drag events
- Responsive: track info hidden on small screens

frontend/src/App.tsx

@@ -186,6 +186,7 @@ function App() {
           clip={currentClip}
           isPlaying={isPlaying}
           onTogglePlay={() => setIsPlaying(!isPlaying)}
+          onStop={() => setIsPlaying(false)}
           onClose={() => {
             setCurrentClip(null)
             setIsPlaying(false)

frontend/src/components/Player.tsx

@@ -1,7 +1,8 @@
-import { useRef, useEffect } from 'react'
+import { useRef, useEffect, useState, useCallback } from 'react'
 
 interface Clip {
   id: string
+  title?: string
   prompt: string
   duration_seconds: number
 }
@@ -10,28 +11,153 @@ interface Props {
   clip: Clip
   isPlaying: boolean
   onTogglePlay: () => void
+  onStop: () => void
   onClose: () => void
 }
 
-export default function Player({ clip, isPlaying, onTogglePlay, onClose }: Props) {
-  const audioRef = useRef<HTMLAudioElement>(null)
+function formatTime(seconds: number): string {
+  const mins = Math.floor(seconds / 60)
+  const secs = Math.floor(seconds % 60)
+  return `${mins}:${secs.toString().padStart(2, '0')}`
+}
 
+export default function Player({ clip, isPlaying, onTogglePlay, onStop, onClose }: Props) {
+  const audioRef = useRef<HTMLAudioElement>(null)
+  const [currentTime, setCurrentTime] = useState(0)
+  const [duration, setDuration] = useState(clip.duration_seconds)
+  const [volume, setVolume] = useState(1)
+  const [isMuted, setIsMuted] = useState(false)
+  const [isDragging, setIsDragging] = useState(false)
+  const progressRef = useRef<HTMLDivElement>(null)
+
+  // Sync play/pause with audio element
   useEffect(() => {
     if (audioRef.current) {
       if (isPlaying) {
-        audioRef.current.play()
+        audioRef.current.play().catch(() => {
+          // Autoplay blocked or other error
+        })
       } else {
         audioRef.current.pause()
       }
     }
   }, [isPlaying, clip.id])
 
+  // Update duration when metadata loads
+  const handleLoadedMetadata = () => {
+    if (audioRef.current) {
+      setDuration(audioRef.current.duration || clip.duration_seconds)
+    }
+  }
+
+  // Update current time during playback
+  const handleTimeUpdate = () => {
+    if (audioRef.current && !isDragging) {
+      setCurrentTime(audioRef.current.currentTime)
+    }
+  }
+
+  // Track ended
+  const handleEnded = () => {
+    onTogglePlay()
+    setCurrentTime(0)
+  }
+
+  // Seek to position
+  const handleSeek = useCallback((clientX: number) => {
+    if (!progressRef.current || !audioRef.current) return
+    const rect = progressRef.current.getBoundingClientRect()
+    const ratio = Math.max(0, Math.min(1, (clientX - rect.left) / rect.width))
+    const newTime = ratio * duration
+    audioRef.current.currentTime = newTime
+    setCurrentTime(newTime)
+  }, [duration])
+
+  // Progress bar mouse events
+  const handleProgressMouseDown = (e: React.MouseEvent) => {
+    setIsDragging(true)
+    handleSeek(e.clientX)
+  }
+
+  const handleProgressMouseMove = (e: React.MouseEvent) => {
+    if (isDragging) {
+      handleSeek(e.clientX)
+    }
+  }
+
+  const handleProgressMouseUp = () => {
+    setIsDragging(false)
+  }
+
+  // Global mouse events for drag
+  useEffect(() => {
+    if (isDragging) {
+      const handleMouseMove = (e: MouseEvent) => handleSeek(e.clientX)
+      const handleMouseUp = () => setIsDragging(false)
+      window.addEventListener('mousemove', handleMouseMove)
+      window.addEventListener('mouseup', handleMouseUp)
+      return () => {
+        window.removeEventListener('mousemove', handleMouseMove)
+        window.removeEventListener('mouseup', handleMouseUp)
+      }
+    }
+  }, [isDragging, handleSeek])
+
+  // Volume control
+  const handleVolumeChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const newVol = parseFloat(e.target.value)
+    setVolume(newVol)
+    if (audioRef.current) {
+      audioRef.current.volume = newVol
+    }
+    if (newVol > 0 && isMuted) {
+      setIsMuted(false)
+    }
+  }
+
+  const toggleMute = () => {
+    if (!audioRef.current) return
+    if (isMuted) {
+      audioRef.current.volume = volume > 0 ? volume : 0.5
+      setIsMuted(false)
+    } else {
+      audioRef.current.volume = 0
+      setIsMuted(true)
+    }
+  }
+
+  // Restart from beginning
+  const handleRestart = () => {
+    if (audioRef.current) {
+      audioRef.current.currentTime = 0
+      setCurrentTime(0)
+      if (!isPlaying) {
+        onTogglePlay()
+      }
+    }
+  }
+
+  // Stop
+  const handleStop = () => {
+    if (audioRef.current) {
+      audioRef.current.pause()
+      audioRef.current.currentTime = 0
+      setCurrentTime(0)
+    }
+    onStop()
+  }
+
+  const progress = duration > 0 ? (currentTime / duration) * 100 : 0
+  const displayTitle = clip.title || clip.prompt
+
   return (
-    <div className="fixed bottom-0 left-0 right-0 bg-lyria-panel border-t border-white/10 px-6 py-3">
-      <div className="max-w-6xl mx-auto flex items-center gap-4">
+    <div className="fixed bottom-0 left-0 right-0 bg-lyria-panel border-t border-white/10 px-4 py-3 z-40">
+      <div className="max-w-6xl mx-auto flex items-center gap-3">
+        {/* Play/Pause */}
         <button
           onClick={onTogglePlay}
-          className="w-10 h-10 rounded-full bg-lyria-accent flex items-center justify-center text-white hover:bg-lyria-accent/90 transition-colors shrink-0"
+          className="w-9 h-9 rounded-full bg-lyria-accent flex items-center justify-center text-white hover:bg-lyria-accent/90 transition-colors shrink-0"
+          title={isPlaying ? 'Pause' : 'Play'}
         >
           {isPlaying ? (
             <svg className="w-4 h-4" fill="currentColor" viewBox="0 0 24 24">
@@ -44,27 +170,119 @@ export default function Player({ clip, isPlaying, onTogglePlay, onClose }: Props
           )}
         </button>
 
-        <div className="flex-1 min-w-0">
-          <p className="text-sm text-white truncate">{clip.prompt}</p>
-          <p className="text-xs text-lyria-muted">{clip.duration_seconds}s</p>
+        {/* Stop */}
+        <button
+          onClick={handleStop}
+          className="w-7 h-7 rounded flex items-center justify-center text-lyria-muted hover:text-white hover:bg-white/5 transition-colors shrink-0"
+          title="Stop"
+        >
+          <svg className="w-3.5 h-3.5" fill="currentColor" viewBox="0 0 24 24">
+            <rect x="6" y="6" width="12" height="12" rx="1" />
+          </svg>
+        </button>
+
+        {/* Restart */}
+        <button
+          onClick={handleRestart}
+          className="w-7 h-7 rounded flex items-center justify-center text-lyria-muted hover:text-white hover:bg-white/5 transition-colors shrink-0"
+          title="Play from beginning"
+        >
+          <svg className="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
+          </svg>
+        </button>
+
+        {/* Time + Scrubber */}
+        <div className="flex-1 min-w-0 flex items-center gap-3">
+          <span className="text-xs text-lyria-muted tabular-nums shrink-0 w-10 text-right">
+            {formatTime(currentTime)}
+          </span>
+
+          <div
+            ref={progressRef}
+            className="flex-1 h-2 bg-white/10 rounded-full cursor-pointer relative group"
+            onMouseDown={handleProgressMouseDown}
+            onMouseMove={handleProgressMouseMove}
+            onMouseUp={handleProgressMouseUp}
+          >
+            <div
+              className="absolute inset-y-0 left-0 bg-lyria-accent rounded-full transition-all duration-75"
+              style={{ width: `${progress}%` }}
+            />
+            {/* Scrubber handle */}
+            <div
+              className="absolute top-1/2 -translate-y-1/2 w-3 h-3 bg-white rounded-full shadow opacity-0 group-hover:opacity-100 transition-opacity"
+              style={{ left: `calc(${progress}% - 6px)` }}
+            />
           </div>
 
-        <audio
-          ref={audioRef}
-          src={`/api/clips/${clip.id}/audio`}
-          onEnded={() => onTogglePlay()}
-          className="hidden"
-        />
+          <span className="text-xs text-lyria-muted tabular-nums shrink-0 w-10">
+            {formatTime(duration)}
+          </span>
+        </div>
 
+        {/* Track info */}
+        <div className="hidden sm:block min-w-0 max-w-[200px]">
+          <p className="text-xs text-white truncate">{displayTitle}</p>
+        </div>
+
+        {/* Volume */}
+        <div className="flex items-center gap-2 shrink-0">
+          <button
+            onClick={toggleMute}
+            className="text-lyria-muted hover:text-white transition-colors"
+            title={isMuted ? 'Unmute' : 'Mute'}
+          >
+            {isMuted || volume === 0 ? (
+              <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M5.586 15H4a1 1 0 01-1-1v-4a1 1 0 011-1h1.586l4.707-4.707C10.923 3.663 12 4.109 12 5v14c0 .891-1.077 1.337-1.707.707L5.586 15z" />
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M17 14l2-2m0 0l2-2m-2 2l-2-2m2 2l2 2" />
+              </svg>
+            ) : volume < 0.5 ? (
+              <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M5.586 15H4a1 1 0 01-1-1v-4a1 1 0 011-1h1.586l4.707-4.707C10.923 3.663 12 4.109 12 5v14c0 .891-1.077 1.337-1.707.707L5.586 15z" />
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15.536 8.464a5 5 0 010 7.072" />
+              </svg>
+            ) : (
+              <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15.536 8.464a5 5 0 010 7.072m2.828-9.9a9 9 0 010 12.728M5.586 15H4a1 1 0 01-1-1v-4a1 1 0 011-1h1.586l4.707-4.707C10.923 3.663 12 4.109 12 5v14c0 .891-1.077 1.337-1.707.707L5.586 15z" />
+              </svg>
+            )}
+          </button>
+          <input
+            type="range"
+            min="0"
+            max="1"
+            step="0.01"
+            value={isMuted ? 0 : volume}
+            onChange={handleVolumeChange}
+            className="w-20 h-1 bg-white/20 rounded-full appearance-none cursor-pointer
+              [&::-webkit-slider-thumb]:appearance-none [&::-webkit-slider-thumb]:w-2.5 [&::-webkit-slider-thumb]:h-2.5
+              [&::-webkit-slider-thumb]:bg-white [&::-webkit-slider-thumb]:rounded-full
+              [&::-moz-range-thumb]:w-2.5 [&::-moz-range-thumb]:h-2.5 [&::-moz-range-thumb]:bg-white [&::-moz-range-thumb]:rounded-full [&::-moz-range-thumb]:border-0"
+          />
+        </div>
+
+        {/* Close */}
         <button
           onClick={onClose}
           className="text-lyria-muted hover:text-white transition-colors shrink-0"
+          title="Close player"
         >
           <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
             <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
           </svg>
         </button>
       </div>
+
+      <audio
+        ref={audioRef}
+        src={`/api/clips/${clip.id}/audio`}
+        onLoadedMetadata={handleLoadedMetadata}
+        onTimeUpdate={handleTimeUpdate}
+        onEnded={handleEnded}
+        className="hidden"
+      />
     </div>
   )
 }