chore: move backend dockerfile to root

Dockerfile.backend

@@ -0,0 +1,54 @@
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/playwright:v1.46.0-noble
+
+# Set working directory
+WORKDIR /app
+
+COPY .sequelizerc .sequelizerc
+COPY .env .env
+
+# Install node dependencies
+COPY package*.json ./
+COPY src ./src
+COPY public ./public 
+COPY server ./server
+COPY tsconfig.json ./
+COPY server/tsconfig.json ./server/
+# COPY server/start.sh ./  
+
+# Install dependencies
+RUN npm install --legacy-peer-deps
+
+# Install Playwright browsers and dependencies
+RUN npx playwright install --with-deps chromium
+
+# Create the Chromium data directory with necessary permissions
+RUN mkdir -p /tmp/chromium-data-dir && \
+    chmod -R 777 /tmp/chromium-data-dir
+
+# Install dependencies
+RUN apt-get update && apt-get install -y \
+    libgbm1 \
+    libnss3 \
+    libatk1.0-0 \
+    libatk-bridge2.0-0 \
+    libdrm2 \
+    libxkbcommon0 \
+    libglib2.0-0 \
+    libdbus-1-3 \
+    libx11-xcb1 \
+    libxcb1 \
+    libxcomposite1 \
+    libxcursor1 \
+    libxdamage1 \
+    libxext6 \
+    libxi6 \
+    libxtst6 \
+    && rm -rf /var/lib/apt/lists/* \
+    && mkdir -p /tmp/.X11-unix && chmod 1777 /tmp/.X11-unix
+
+# Expose backend port
+EXPOSE ${BACKEND_PORT:-8080}
+
+# Run migrations & start backend using start script
+CMD ["npm", "run", "server"]
+# CMD ["sh", "-c", "npm run migrate && npm run server"]