Add devcontainer configuration

.devcontainer/Dockerfile

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+FROM ubuntu:22.04
+
+# Avoid interactive prompts during package install
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install required packages
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    cmake \
+    libsqlite3-dev \
+    nodejs \
+    npm \
+    pkg-config \
+    libavcodec-dev \
+    libavformat-dev \
+    libavutil-dev \
+    libswscale-dev \
+    libcurl4-openssl-dev \
+    libmbedtls-dev \
+    libcjson-dev \
+    libwolfssl-dev \
+    libssl-dev \
+    && apt-get clean
+
+# Create a non-root user for VS Code
+RUN useradd -m vscode
+USER vscode
+WORKDIR /home/vscode

.devcontainer/devcontainer.json

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+{
+  "name": "Dev Container with Build Tools and Node",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+  "settings": {
+    "terminal.integrated.shell.linux": "/bin/bash"
+  },
+  "extensions": [
+    "ms-vscode.cpptools",
+    "dbaeumer.vscode-eslint"
+  ],
+  "forwardPorts": [],
+  "postCreateCommand": "npm install",
+  "remoteUser": "vscode"
+}

.gitattributes

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+* text eol=lf