chore: add devcontainer

.devcontainer/Dockerfile

@@ -0,0 +1,86 @@
+# Development Dockerfile for ConvertX
+FROM debian:trixie-slim
+
+LABEL org.opencontainers.image.source="https://github.com/C4illin/ConvertX"
+LABEL description="Development environment for ConvertX with all tools and dependencies"
+
+WORKDIR /app
+
+# Install system dependencies and development tools
+RUN apt-get update && apt-get install -y \
+  # Basic tools
+  curl \
+  unzip \
+  git \
+  ca-certificates \
+  # Build tools
+  build-essential \
+  # ConvertX runtime dependencies
+  assimp-utils \
+  calibre \
+  dasel \
+  dcraw \
+  dvisvgm \
+  ffmpeg \
+  ghostscript \
+  graphicsmagick \
+  imagemagick-7.q16 \
+  inkscape \
+  latexmk \
+  libheif-examples \
+  libjxl-tools \
+  libreoffice \
+  libva2 \
+  libvips-tools \
+  libemail-outlook-message-perl \
+  lmodern \
+  mupdf-tools \
+  pandoc \
+  poppler-utils \
+  potrace \
+  python3-numpy \
+  resvg \
+  texlive \
+  texlive-fonts-recommended \
+  texlive-latex-extra \
+  texlive-latex-recommended \
+  texlive-xetex \
+  --no-install-recommends \
+  && rm -rf /var/lib/apt/lists/*
+
+# Install Bun (JavaScript runtime and package manager)
+RUN ARCH=$(uname -m) && \
+  if [ "$ARCH" = "aarch64" ]; then \
+  curl -fsSL -o bun-linux-aarch64.zip https://github.com/oven-sh/bun/releases/download/bun-v1.2.2/bun-linux-aarch64.zip; \
+  else \
+  curl -fsSL -o bun-linux-x64-baseline.zip https://github.com/oven-sh/bun/releases/download/bun-v1.2.2/bun-linux-x64-baseline.zip; \
+  fi && \
+  unzip -j bun-linux-*.zip -d /usr/local/bin && \
+  rm bun-linux-*.zip && \
+  chmod +x /usr/local/bin/bun
+
+# Install VTracer binary for vector tracing
+RUN ARCH=$(uname -m) && \
+  if [ "$ARCH" = "aarch64" ]; then \
+  VTRACER_ASSET="vtracer-aarch64-unknown-linux-musl.tar.gz"; \
+  else \
+  VTRACER_ASSET="vtracer-x86_64-unknown-linux-musl.tar.gz"; \
+  fi && \
+  curl -L -o /tmp/vtracer.tar.gz "https://github.com/visioncortex/vtracer/releases/download/0.6.4/${VTRACER_ASSET}" && \
+  tar -xzf /tmp/vtracer.tar.gz -C /tmp/ && \
+  mv /tmp/vtracer /usr/local/bin/vtracer && \
+  chmod +x /usr/local/bin/vtracer && \
+  rm /tmp/vtracer.tar.gz
+
+# Create data directory for development
+RUN mkdir -p data
+
+# Set environment variables for development
+ENV NODE_ENV=development
+ENV QTWEBENGINE_CHROMIUM_FLAGS="--no-sandbox"
+
+# Expose the development port
+EXPOSE 3000
+
+# Default command for development
+CMD ["bun", "run", "dev"]