Update Dockerfile for pre-generated help artifacts and navi

- Install navi for Ctrl+G interactive cheatsheet browsing
- COPY pre-generated artifacts (tools.db, 397 cheatsheets, 15
  workflows, TLDR pages) instead of build-time generation
- Configure cheat tool with /home/remnux/.cheat path
- Symlink navi cheatsheets to /opt/cheatsheets/personal/
- Add welcome.sh to /usr/local/bin/ for all shells
- Configure bash navi widget in /etc/bash.bashrc

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Dockerfile

@@ -25,7 +25,7 @@ RUN apt-get update && apt-get install -y \
     zsh-syntax-highlighting \
     && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
-# Configure pip  
+# Configure pip
 ENV PYTHONDONTWRITEBYTECODE=1
 ADD pip.conf /etc/pip.conf
 
@@ -40,30 +40,41 @@ RUN PIPX_HOME=/opt/pipx PIPX_BIN_DIR=/usr/local/bin pipx install --include-deps
 RUN PIPX_HOME=/opt/pipx PIPX_BIN_DIR=/usr/local/bin pipx install --include-deps cheat \
     && PIPX_HOME=/opt/pipx PIPX_BIN_DIR=/usr/local/bin pipx install --include-deps tldr
 
-# Removed navi - focus on tldr and cheat for reliable help system
+# Install navi (interactive cheatsheet browser, Ctrl+G)
+RUN curl -sL https://raw.githubusercontent.com/denisidoro/navi/master/scripts/install | BIN_DIR=/usr/local/bin bash 2>/dev/null \
+    || echo "navi installation skipped (offline build)"
 
 # Create data directory and set permissions
 RUN mkdir -p /data \
     && chown remnux:remnux /data
 
-# Add documentation and streamlined help system
+# Add documentation and shell configuration
 ADD files/README /opt/README
+ADD files/welcome.sh /usr/local/bin/welcome.sh
 ADD files/command_help /opt/command_help
 ADD files/zshrc /etc/zsh/zshrc
 ADD files/fish_config.fish /etc/fish/conf.d/remnux.fish
-ADD scripts/create-offline-help-system.sh /usr/local/bin/create-offline-help-system.sh
+RUN chmod +x /usr/local/bin/welcome.sh
+
+# Add help system scripts
 ADD scripts/find-tool /usr/local/bin/find-tool
 ADD scripts/fhelp /usr/local/bin/fhelp
+ADD scripts/check-help-coverage.sh /usr/local/bin/check-help-coverage.sh
+RUN chmod +x /usr/local/bin/find-tool /usr/local/bin/fhelp /usr/local/bin/check-help-coverage.sh
+
+# Install pre-generated help artifacts (built via: make generate-master)
+ADD data/generated/tools.db /opt/remnux-docs/tools.db
+ADD data/generated/cheatsheets/ /opt/cheatsheets/personal/
+ADD data/generated/workflows/ /opt/remnux-docs/workflows/
+ADD cheatsheets/ /opt/cheatsheets/
+
+# Install legacy help scripts (kept for compatibility)
+ADD scripts/create-offline-help-system.sh /usr/local/bin/create-offline-help-system.sh
 ADD scripts/import-remnux-cheatsheets.sh /usr/local/bin/import-remnux-cheatsheets.sh
 ADD scripts/convert-remnux-cheats.py /usr/local/bin/convert-remnux-cheats.py
 ADD scripts/add-tool-cheats.sh /usr/local/bin/add-tool-cheats.sh
-ADD scripts/check-help-coverage.sh /usr/local/bin/check-help-coverage.sh
-
-# Create streamlined offline help system (tldr + cheat)
-RUN chmod +x /usr/local/bin/create-offline-help-system.sh /usr/local/bin/find-tool /usr/local/bin/fhelp /usr/local/bin/import-remnux-cheatsheets.sh \
-    && chmod +x /usr/local/bin/convert-remnux-cheats.py /usr/local/bin/add-tool-cheats.sh /usr/local/bin/check-help-coverage.sh \
-    && /usr/local/bin/create-offline-help-system.sh \
-    && /usr/local/bin/add-tool-cheats.sh
+RUN chmod +x /usr/local/bin/create-offline-help-system.sh /usr/local/bin/import-remnux-cheatsheets.sh \
+    && chmod +x /usr/local/bin/convert-remnux-cheats.py /usr/local/bin/add-tool-cheats.sh
 
 # Install Oh My Zsh for remnux user (minimal installation)
 RUN su - remnux -c 'sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended' || true \
@@ -71,20 +82,31 @@ RUN su - remnux -c 'sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzs
     && find /home/remnux/.oh-my-zsh/plugins -mindepth 1 -maxdepth 1 -type d ! -name git ! -name docker ! -name command-not-found ! -name colored-man-pages -exec rm -rf {} + 2>/dev/null || true \
     && rm -rf /home/remnux/.cache/* /tmp/* 2>/dev/null || true
 
-# Update bashrc with welcome message and comprehensive help info
-RUN echo 'cat /opt/README' >> /etc/bash.bashrc \
-    && echo 'echo ""' >> /etc/bash.bashrc \
-    && echo 'echo "📚 Comprehensive Help System:"' >> /etc/bash.bashrc \
-    && echo 'echo "  fhelp                   - Complete file analysis help"' >> /etc/bash.bashrc \
-    && echo 'echo "  fhelp tools pdf         - Find PDF analysis tools"' >> /etc/bash.bashrc \
-    && echo 'echo "  fhelp cheat pdfid.py    - Show command examples"' >> /etc/bash.bashrc \
-    && echo 'echo "  fhelp examples          - Browse all examples"' >> /etc/bash.bashrc \
-    && echo 'echo "  fhelp pdf               - PDF analysis workflow"' >> /etc/bash.bashrc \
-    && echo 'echo ""' >> /etc/bash.bashrc \
-    && echo 'echo "  Shells: bash (default), zsh (with Oh My Zsh), fish"' >> /etc/bash.bashrc \
-    && echo 'echo ""' >> /etc/bash.bashrc \
+# Configure navi cheatsheet path
+RUN mkdir -p /home/remnux/.local/share/navi/cheats \
+    && ln -sf /opt/cheatsheets/personal /home/remnux/.local/share/navi/cheats/remnux \
+    && chown -R remnux:remnux /home/remnux/.local/share/navi 2>/dev/null || true
+
+# Configure cheat tool — Python cheat v2.x uses DEFAULT_CHEAT_DIR env var
+# Create cheat-compatible copies (without .cheat extension) in the cheat directory
+RUN mkdir -p /home/remnux/.cheat \
+    && for f in /opt/cheatsheets/personal/*.cheat; do \
+        base=$(basename "$f" .cheat); \
+        cp "$f" "/home/remnux/.cheat/$base"; \
+    done \
+    && chown -R remnux:remnux /home/remnux/.cheat
+ENV DEFAULT_CHEAT_DIR=/home/remnux/.cheat
+
+# Configure bash welcome (login shells only)
+RUN echo '# Welcome message (login shells only)' >> /etc/bash.bashrc \
+    && echo 'if [ -z "$_WELCOME_SHOWN" ] && [ -f /usr/local/bin/welcome.sh ]; then' >> /etc/bash.bashrc \
+    && echo '    source /usr/local/bin/welcome.sh' >> /etc/bash.bashrc \
+    && echo 'fi' >> /etc/bash.bashrc \
     && echo 'alias analyse="fhelp"' >> /etc/bash.bashrc \
+    && echo 'alias h="fhelp"' >> /etc/bash.bashrc \
     && echo 'alias ?="fhelp"' >> /etc/bash.bashrc \
+    && echo '# Navi widget for bash (Ctrl+G)' >> /etc/bash.bashrc \
+    && echo 'command -v navi >/dev/null 2>&1 && eval "$(navi widget bash)" 2>/dev/null' >> /etc/bash.bashrc \
     && rm -rf /var/cache/* /tmp/* /var/tmp/* /home/remnux/.cache/* /root/.cache/* 2>/dev/null || true
 
 # Switch to remnux user (REMnux default user)