Release v1.3.0: Multi-source downloads, audio analyzer resilience, mobile improvements

Major Features:
- Multi-source download system (Soulseek/Lidarr with fallback)
- Configurable enrichment speed control (1-5x)
- Mobile touch drag support for seek sliders
- iOS PWA media controls (Control Center, Lock Screen)
- Artist name alias resolution via Last.fm
- Circuit breaker pattern for audio analysis

Critical Fixes:
- Audio analyzer stability (non-ASCII, BrokenProcessPool, OOM)
- Discovery system race conditions and import failures
- Radio decade categorization using originalYear
- LastFM API response normalization
- Mood bucket infinite loop prevention

Security:
- Bull Board admin authentication
- Lidarr webhook signature verification
- JWT token expiration and refresh
- Encryption key validation on startup

Closes #2, #6, #9, #13, #21, #26, #31, #34, #35, #37, #40, #43

services/audio-analyzer/Dockerfile

@@ -6,6 +6,17 @@ FROM ubuntu:20.04
 ENV DEBIAN_FRONTEND=noninteractive
 ENV TZ=UTC
 
+# CPU thread limiting for TensorFlow and numerical libraries
+# Prevents each worker from using all CPU cores
+# Override with docker-compose environment variables
+ENV TF_NUM_INTRAOP_THREADS=1 \
+    TF_NUM_INTEROP_THREADS=1 \
+    OMP_NUM_THREADS=1 \
+    OPENBLAS_NUM_THREADS=1 \
+    MKL_NUM_THREADS=1 \
+    NUMEXPR_MAX_THREADS=1 \
+    THREADS_PER_WORKER=1
+
 # Install system dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
     python3 \