Fix zsh alias error and sync packages across Dockerfiles

Fixed zsh configuration:
- Fixed '?' alias that was causing 'no matches found' error in zsh
- Added proper bat alias (bat → batcat on Ubuntu)
- Added conditional alias handling for different shells

Synchronized packages across Dockerfiles:
- Added bat, mpack, pandoc to Dockerfile.scratch
- Enhanced package cleanup in Dockerfile.scratch
- Both Dockerfiles now have identical package lists

New packages available:
- bat (as batcat) - syntax-highlighted cat alternative
- mpack - MIME email utilities
- pandoc - document converter

All shells (bash, zsh, fish) now work without errors!

Dockerfile

@@ -8,6 +8,7 @@ ENV TZ=Europe/Berlin
 # Install additional system packages that REMnux doesn't include
 RUN apt-get update && apt-get install -y \
     busybox \
+    bat \
     catdoc \
     docx2txt \
     fd-find \
@@ -17,6 +18,8 @@ RUN apt-get update && apt-get install -y \
     pipx \
     ripgrep \
     unrtf \
+    mpack \
+    pandoc \
     zsh \
     zsh-autosuggestions \
     zsh-syntax-highlighting \