@mytec: iter3.2.5 gpu polish start

backend/requirements-dev.txt

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+# Development and testing dependencies
+# Install with: pip install -r requirements-dev.txt
+
+pytest>=7.0.0
+pytest-asyncio>=0.21.0
+httpx>=0.27.0
+ruff>=0.1.0
+mypy>=1.7.0

backend/requirements-gpu-nvidia.txt

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+# NVIDIA GPU acceleration via CuPy
+# Install with: pip install -r requirements-gpu-nvidia.txt
+#
+# Choose ONE based on your CUDA version:
+#   - cupy-cuda12x for CUDA 12.x (RTX 30xx, 40xx, newer)
+#   - cupy-cuda11x for CUDA 11.x (older cards)
+#
+# CuPy bundles CUDA runtime (~700 MB) - no separate CUDA install needed
+
+cupy-cuda12x>=13.0.0

backend/requirements-gpu-opencl.txt

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+# Intel/AMD GPU acceleration via PyOpenCL
+# Install with: pip install -r requirements-gpu-opencl.txt
+#
+# Works with:
+#   - Intel UHD/Iris Graphics (integrated)
+#   - AMD Radeon (discrete)
+#   - NVIDIA GPUs (alternative to CUDA)
+#
+# Requires OpenCL runtime:
+#   - Intel: Intel GPU Computing Runtime
+#   - AMD: AMD Adrenalin driver (includes OpenCL)
+#   - NVIDIA: NVIDIA driver (includes OpenCL)
+
+pyopencl>=2023.1