chore(deploy): finalize 0309 SAE rollout updates

Sync deployment documentation to the final successful SAE state and clear pending deployment checklist items. Include backend/frontend/R hardening and diagnostics improvements required for stable production behavior.

Made-with: Cursor

r-statistics-service/Dockerfile

@@ -40,6 +40,9 @@ RUN R -e "install.packages(c( \
     'meta' \
 ), repos='https://cloud.r-project.org/', Ncpus=2)"
 
+# 构建期校验：关键包缺失则直接失败，阻止坏镜像发布
+RUN R -e "required <- c('plumber','jsonlite','ggplot2','glue','dplyr','tidyr','base64enc','yaml','car','httr','scales','gridExtra','gtsummary','gt','broom','meta'); installed <- rownames(installed.packages()); missing <- setdiff(required, installed); if (length(missing) > 0) { stop(paste('Missing required R packages:', paste(missing, collapse=', '))) } else { cat('All required R packages installed.\\n') }"
+
 # ===== 安全加固：创建非特权用户 =====
 RUN useradd -m -s /bin/bash appuser