Fix libgomp OMP_NUM_THREADS Invalid value error with explicit export

v1.3.12 - Research-based fix for persistent libgomp warning:
- Root cause: OMP_NUM_THREADS getting set to empty string somewhere
- Solution: Explicit export in CMD: 'export OMP_NUM_THREADS=1 && python app.py'
- This ensures the variable is set to valid positive integer at runtime
- Based on libgomp documentation: requires positive integer, not empty string

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Dockerfile

@@ -43,8 +43,9 @@ RUN chown -R appuser:appuser /app
 # Switch back to non-root user for running the app
 USER appuser
 
-# Set environment variables to fix OpenMP, CUDA memory, and caching issues  
-ENV OMP_NUM_THREADS="1"
+# Set environment variables to fix OpenMP, CUDA memory, and caching issues
+# Remove quotes and set as integer - libgomp requires positive integer, not empty string  
+ENV OMP_NUM_THREADS=1
 ENV PYTORCH_CUDA_ALLOC_CONF=expandable_segments:True
 ENV CUDA_LAUNCH_BLOCKING=0
 ENV HF_HOME=/app/hf_cache
@@ -58,5 +59,5 @@ EXPOSE 7860
 HEALTHCHECK --interval=60s --timeout=45s --start-period=300s --retries=5 \
     CMD curl -f http://localhost:7860/health || exit 1
 
-# Run application as non-root user
-CMD ["python", "app.py"]
+# Run application as non-root user with explicit OMP_NUM_THREADS
+CMD ["sh", "-c", "export OMP_NUM_THREADS=1 && python app.py"]

app.py

@@ -16,7 +16,7 @@ from fastapi.responses import JSONResponse, HTMLResponse
 import uvicorn
 
 # Version tracking
-VERSION = "1.3.11"
+VERSION = "1.3.12"
 COMMIT_SHA = "TBD"
 
 # Configure logging