reverting docker file changes, adding script to test things locally

Dockerfile

@@ -8,15 +8,11 @@ RUN apt-get update \
   && apt-get install -y --no-install-recommends chromium curl \
   && rm -rf /var/lib/apt/lists/*
 
-# Use predefined node user (UID 1000, GID 1000)
-# Set home directory ownership for node user
-RUN usermod -d /fredy node
-
 ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
     PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium
 
 # Copy lockfiles first to leverage cache for dependencies
-COPY --chown=node:node package.json yarn.lock .
+COPY package.json yarn.lock .
 
 # Set Yarn timeout, install dependencies and PM2 globally
 RUN yarn config set network-timeout 600000 \
@@ -24,13 +20,13 @@ RUN yarn config set network-timeout 600000 \
   && yarn global add pm2
 
 # Copy application source and build production assets
-COPY --chown=node:node . .
+COPY . .
 RUN yarn build:frontend
 
 # Prepare runtime directories and symlinks for data and config
 RUN mkdir -p /db /conf \
-  && chown -R node:node /fredy /db /conf \
-  && chmod 755 /db /conf \
+  && chown 1000:1000 /db /conf \
+  && chmod 777 /db /conf \
   && ln -s /db /fredy/db \
   && ln -s /conf /fredy/conf
 
@@ -38,8 +34,5 @@ EXPOSE 9998
 VOLUME /db
 VOLUME /conf
 
-# Switch to non-root user
-USER node
-
 # Start application using PM2 runtime
 CMD ["pm2-runtime", "index.js"]