Initial web ui and control for robot

.devcontainer/Dockerfile

@@ -18,7 +18,7 @@ RUN groupadd --gid $USER_GID $USERNAME \
 RUN apt-get update && apt-get upgrade -y
 
 # C++ development tools
-RUN apt-get install -y \
+RUN apt-get update && apt-get install -y \
     build-essential \
     cmake \
     gdb \
@@ -28,8 +28,9 @@ RUN apt-get install -y \
     libboost-all-dev
 
 # Python development tools
-RUN apt-get install -y \
+RUN apt-get update && apt-get install -y \
     python3-pip \
+    python3-venv \
     python3-dev \
     python3-argcomplete \
     python3-colcon-common-extensions \
@@ -45,6 +46,17 @@ RUN apt-get install -y \
 #     ros-${ROS_DISTRO}-ament-lint-auto \
 #     ros-${ROS_DISTRO}-ament-lint-common
 
+# Node.js for frontend development
+RUN curl -fsSL https://deb.nodesource.com/setup_22.x | bash - \
+    && apt-get install -y nodejs
+
+# Python venv for webui backend (isolated from system packages)
+RUN python3 -m venv /opt/webui-venv \
+    && /opt/webui-venv/bin/pip install --no-cache-dir \
+        fastapi \
+        "uvicorn[standard]" \
+        numpy
+
 ENV SHELL /bin/bash
 
 # ********************************************************