fix(codespaces): reverted the user id changes as they were interfering with Playwright

Author: jan-molak

.devcontainer/Dockerfile

@@ -3,11 +3,6 @@ FROM mcr.microsoft.com/playwright:v1.56.1-noble
 ARG DEBIAN_FRONTEND=noninteractive
 ARG TZ=UTC
 
-# Add user args (defaults can be overridden via devcontainer.json build.args)
-ARG USERNAME=serenity-js
-ARG USER_UID=1000
-ARG USER_GID=1000
-
 ENV SHELL=/bin/bash
 ENV PATH="/opt/google/chrome:${PATH}"
 ENV HOME=/home/${USERNAME}
@@ -34,22 +29,7 @@ RUN \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
-# Create a non-root user to run the workspace (more secure than using root)
-RUN set -eux; \
-    # create group (if it doesn't already exist) and user with specified uid/gid
-    if ! getent group ${USER_GID} >/dev/null 2>&1; then \
-      groupadd --gid ${USER_GID} ${USERNAME}; \
-    fi; \
-    if ! id -u ${USERNAME} >/dev/null 2>&1; then \
-      useradd -m -s /bin/bash -u ${USER_UID} -g ${USER_GID} ${USERNAME}; \
-    fi; \
-    # Ensure /workspaces exists and is owned by the non-root user so postCreateCommand can write
-    mkdir -p /workspaces; \
-    chown -R ${USERNAME}:${USERNAME} /workspaces /home/${USERNAME}
-
 # Copy welcome message for Codespaces/Dev Containers
 COPY welcome-message.txt /usr/local/etc/vscode-dev-containers/first-run-notice.txt
 
-# Switch to the non-root user for the running container
-USER ${USERNAME}
 WORKDIR /workspaces

.devcontainer/devcontainer.json

@@ -1,12 +1,7 @@
 {
   "build": {
     "context": ".",
-    "dockerfile": "Dockerfile",
-    "args": {
-      "USERNAME": "serenity-js",
-      "USER_UID": "1002",
-      "USER_GID": "1002"
-    }
+    "dockerfile": "Dockerfile"
   },
 
   "features": {