feat(actpred): 动作预测模块入库（PyTorch 训练/预测/ONNX 导出）

actpred/_set.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+cd "$(dirname "$0")" || exit
+python3 -m venv venv
+source venv/bin/activate
+
+# CPU-only PyTorch (no CUDA dependency)
+pip install torch torchvision --index-url https://download.pytorch.org/whl/cpu
+
+# Remaining deps from Tsinghua mirror
+pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple
+
+mkdir -p checkpoints data