Update Dockerfile to include the specific r installation and package versions used in Version 2.0

Dockerfile

@@ -1,23 +1,32 @@
-FROM rocker/r-base:latest
+FROM rocker/r-ver:4.5.2
 
-# Install system dependencies
+# Install system dependencies for R packages
+# - libcurl4-openssl-dev, libssl-dev: for httr/curl (ellmer dependency)
+# - libxml2-dev: for xml2 (ellmer dependency)
+# - libpoppler-cpp-dev: for pdftools
+# - libmagick++-dev: for magick
+# - libfontconfig1-dev, libfreetype6-dev: for magick text rendering
 RUN apt-get update && apt-get install -y \
     libcurl4-openssl-dev \
     libssl-dev \
     libxml2-dev \
-    libgit2-dev \
-    libsodium-dev \
+    libpoppler-cpp-dev \
+    libmagick++-dev \
+    libfontconfig1-dev \
+    libfreetype6-dev \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /code
 
-# Install R packages
-RUN R -e "install.packages('shiny')" \
-    && R -e "install.packages('purrr')" \
-    && R -e "install.packages('readr')" \
-    && R -e "install.packages('dplyr')" \
-    && R -e "install.packages('ellmer')"
-    
+# Install remotes package first, then install specific versions of required packages
+RUN R -e "install.packages('remotes', repos = 'https://cloud.r-project.org')" \
+    && R -e "remotes::install_version('shiny', version = '1.12.1', repos = 'https://cloud.r-project.org')" \
+    && R -e "remotes::install_version('purrr', version = '1.2.1', repos = 'https://cloud.r-project.org')" \
+    && R -e "remotes::install_version('ellmer', version = '0.4.0', repos = 'https://cloud.r-project.org')" \
+    && R -e "remotes::install_version('pdftools', version = '3.6.0', repos = 'https://cloud.r-project.org')" \
+    && R -e "remotes::install_version('magick', version = '2.9.0', repos = 'https://cloud.r-project.org')" \
+    && R -e "remotes::install_version('base64enc', version = '0.1.3', repos = 'https://cloud.r-project.org')"
+
 COPY . .
 
 CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=7860)"]