Add dev infrastructure improvements

- Central config with logging on startup
- Hot reload support for GPU worker (docker-compose.gpu-dev.yml)
- Quick deploy script (scripts/gpu-dev-deploy.sh)
- GPU/CPU frame compatibility tests
- CI/CD pipeline for GPU worker (.gitea/workflows/gpu-worker.yml)
- Standardize GPU_PERSIST default to 0 across all modules

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

sexp_effects/primitive_libs/blending_gpu.py

@@ -18,7 +18,7 @@ except ImportError:
     print("[blending_gpu] CuPy not available, using CPU fallback")
 
 # GPU persistence mode - keep frames on GPU between operations
-GPU_PERSIST = os.environ.get("STREAMING_GPU_PERSIST", "1") == "1"
+GPU_PERSIST = os.environ.get("STREAMING_GPU_PERSIST", "0") == "1"
 if GPU_AVAILABLE and GPU_PERSIST:
     print("[blending_gpu] GPU persistence enabled - frames stay on GPU")
 

sexp_effects/primitive_libs/color_ops_gpu.py

@@ -21,7 +21,7 @@ except ImportError:
     print("[color_ops_gpu] CuPy not available, using CPU fallback")
 
 # GPU persistence mode - keep frames on GPU between operations
-GPU_PERSIST = os.environ.get("STREAMING_GPU_PERSIST", "1") == "1"
+GPU_PERSIST = os.environ.get("STREAMING_GPU_PERSIST", "0") == "1"
 if GPU_AVAILABLE and GPU_PERSIST:
     print("[color_ops_gpu] GPU persistence enabled - frames stay on GPU")
 

sexp_effects/primitive_libs/geometry_gpu.py

@@ -25,7 +25,7 @@ except ImportError:
 
 # GPU persistence mode - keep frames on GPU between operations
 # Set STREAMING_GPU_PERSIST=1 for maximum performance
-GPU_PERSIST = os.environ.get("STREAMING_GPU_PERSIST", "1") == "1"
+GPU_PERSIST = os.environ.get("STREAMING_GPU_PERSIST", "0") == "1"
 if GPU_AVAILABLE and GPU_PERSIST:
     print("[geometry_gpu] GPU persistence enabled - frames stay on GPU")