Add environment configuration and enhance Shiny app with AWS integration

shiny-app/Dockerfile

@@ -0,0 +1,22 @@
+FROM rocker/shiny:latest
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libpq-dev \
+    libcurl4-openssl-dev \
+    libssl-dev \
+    libxml2-dev \
+    curl \
+    unzip \
+  && rm -rf /var/lib/apt/lists/*
+
+RUN curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip" \
+  && unzip awscliv2.zip \
+  && ./aws/install \
+  && rm -rf awscliv2.zip aws
+
+RUN R -e "install.packages(c('DBI','RPostgres','dplyr','DT','glue','shiny'), repos='https://cloud.r-project.org')"
+
+WORKDIR /srv/shiny-server
+COPY app.R /srv/shiny-server/app.R
+
+EXPOSE 3838