chore: add devcontainer

.devcontainer/Dockerfile

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+# 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"]

.devcontainer/devcontainer.json

@@ -0,0 +1,57 @@
+{
+  "name": "ConvertX Development Environment",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "context": ".."
+  },
+  "features": {
+    "ghcr.io/devcontainers/features/git:1": {},
+    "ghcr.io/devcontainers/features/github-cli:1": {}
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-vscode.vscode-typescript-next",
+        "bradlc.vscode-tailwindcss",
+        "esbenp.prettier-vscode",
+        "dbaeumer.vscode-eslint",
+        "ms-vscode.vscode-json",
+        "ms-vscode.vscode-docker"
+      ],
+      "settings": {
+        "editor.defaultFormatter": "esbenp.prettier-vscode",
+        "editor.formatOnSave": true,
+        "editor.codeActionsOnSave": {
+          "source.fixAll.eslint": "explicit"
+        },
+        "typescript.preferences.importModuleSpecifier": "relative",
+        "typescript.suggest.autoImports": true,
+        "tailwindCSS.includeLanguages": {
+          "typescript": "javascript",
+          "typescriptreact": "javascript"
+        },
+        "files.associations": {
+          "*.css": "tailwindcss"
+        },
+        "terminal.integrated.defaultProfile.linux": "bash"
+      }
+    }
+  },
+  "forwardPorts": [3000],
+  "portsAttributes": {
+    "3000": {
+      "label": "ConvertX Application",
+      "onAutoForward": "notify"
+    }
+  },
+  // "postCreateCommand": "bun install && bun run dev",
+  "remoteUser": "root",
+  "mounts": [
+    "source=${localWorkspaceFolder}/data,target=/app/data,type=bind",
+    "source=${localWorkspaceFolder}/src,target=/app/src,type=bind"
+  ],
+  "containerEnv": {
+    "NODE_ENV": "development",
+    "QTWEBENGINE_CHROMIUM_FLAGS": "--no-sandbox"
+  }
+}