Add audio validation, seamless transitions, and quality improvements for music streaming

Dockerfile

@@ -20,27 +20,35 @@ RUN apk add --no-cache \
     make \
     python3
 
-# Download and extract Weatherscan music
+# Download and extract Weatherscan music with fast quality processing
 RUN mkdir -p /music /music-temp && \
     echo "Downloading Weatherscan music..." && \
     wget -O /tmp/weatherscan.zip "https://archive.org/compress/weatherscancompletecollection/formats=OGG%20VORBIS&file=/weatherscancompletecollection.zip" && \
     echo "Extracting OGG files..." && \
     unzip -j /tmp/weatherscan.zip "*.ogg" -d /music-temp && \
     rm /tmp/weatherscan.zip && \
-    echo "Repairing and validating music files (fast parallel processing)..." && \
+    echo "Processing music (fast parallel)..." && \
     cd /music-temp && \
-    JOBS=0 && MAX_JOBS=12 && \
+    JOBS=0 && MAX_JOBS=16 && \
     for file in *.ogg; do \
       while [ $JOBS -ge $MAX_JOBS ]; do \
         wait -n 2>/dev/null && JOBS=$((JOBS-1)) || JOBS=0; \
       done; \
-      (ffmpeg -y -v error -i "$file" -c:a libvorbis -b:a 128k "/music/$file" 2>&1 && echo "✓ $file" || echo "✗ $file") & \
+      (ffmpeg -y -v error -i "$file" \
+        -c:a libvorbis \
+        -q:a 5 \
+        -ar 44100 \
+        -ac 2 \
+        -compression_level 4 \
+        "/music/$file" 2>&1 && echo "✓ $file" || echo "✗ $file") & \
       JOBS=$((JOBS+1)); \
     done && \
     wait && \
     cd / && rm -rf /music-temp && \
-    echo "Music files ready: $(ls -1 /music/*.ogg 2>/dev/null | wc -l) files" && \
-    echo "Weatherscan music setup complete!"
+    echo "════════════════════════════════════════" && \
+    echo "Music ready: $(ls -1 /music/*.ogg 2>/dev/null | wc -l) files" && \
+    echo "🎵 Quality: VBR q5 (~160kbps), 44.1kHz stereo" && \
+    echo "════════════════════════════════════════"
 
 # Set Puppeteer to use installed Chromium
 ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
@@ -58,5 +66,5 @@ COPY src/ ./src/
 # Expose both ports
 EXPOSE 3000 8080
 
-# Start both services
-CMD cd /app && node index.js & cd /streaming-app && yarn start
+# Start both services using JSON array format
+CMD ["/bin/sh", "-c", "cd /app && node index.js & cd /streaming-app && yarn start"]