Add GPU support and improve Docker deployment

- Add GPU deployment support with NVIDIA runtime
  - Update Dockerfile.allinone with GPU environment variables
  - Add comprehensive GPU_DEPLOYMENT.md guide

- Make port 11434 (Ollama) optional for security
  - Update DEPLOYMENT.md with CPU and GPU deployment options
  - Simplify default docker run commands
  - Update healthcheck to only check web application

- Add memory requirements documentation
  - Create MEMORY_REQUIREMENTS.md with model comparison
  - Add build-8b.sh script for lower memory usage
  - Document OOM troubleshooting steps

- Improve Docker build process
  - Add BUILD_TROUBLESHOOTING.md for common issues
  - Add DISTRIBUTION.md for image distribution methods
  - Update .gitignore to exclude large binary files
  - Improve docker-entrypoint.sh with better diagnostics

- Update .dockerignore to include ollama-linux-amd64.tgz
- Add backup file exclusions to .gitignore

.dockerignore

@@ -14,6 +14,8 @@ build
 .idea
 *.md
 !README.md
+# Include pre-downloaded Ollama binary for offline build
+!ollama-linux-amd64.tgz
 local_docs
 examples
 outputs