Update Dockerfile

Dockerfile

@@ -5,9 +5,10 @@ FROM ubuntu:22.04
 ENV DEBIAN_FRONTEND=noninteractive
 ENV LANG=C.UTF-8 LC_ALL=C.UTF-8
 
-# Install ONLY Core Professional Tools (No heavy frameworks)
+# Install Core Professional Tools + Network Diagnostic Tools (net-tools, iproute2, lsof)
 RUN apt-get update && apt-get install -y --no-install-recommends \
     curl wget git htop nano vim python3 python3-pip sudo zsh tmux unzip locales \
+    net-tools iproute2 lsof procps \
     && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 # Web Terminal (ttyd) Setup - Silent and secure download
@@ -24,7 +25,6 @@ ENV PATH="/home/user/.local/bin:${PATH}"
 WORKDIR $HOME/app
 
 # ULTRA-FAST ZSH SETUP (No Oh-My-Zsh, zero lag, instant response)
-# We create a custom beautiful prompt that loads in 0.001 seconds
 RUN echo "autoload -U colors && colors" > ~/.zshrc \
     && echo "PROMPT=$'\n%{$fg[cyan]%}%~%{$reset_color%}\n%{$fg[green]%}❯%{$reset_color%} '" >> ~/.zshrc \
     && echo "alias ll='ls -alF'" >> ~/.zshrc \
@@ -45,8 +45,8 @@ RUN echo 'set -g default-terminal "screen-256color"' > ~/.tmux.conf \
     && echo 'set -g pane-border-style fg="#333333"' >> ~/.tmux.conf \
     && echo 'set -g pane-active-border-style fg="#555555",bg=default' >> ~/.tmux.conf
 
-# Copy project files
-COPY --chown=user:user . $HOME/app
+# 🚀 OPTIMIZATION: Copy requirements first to leverage Docker Layer Caching
+COPY --chown=user:user requirements.txt $HOME/app/
 
 # Safely install Python Requirements
 RUN if grep -q '^[^#[:space:]]' requirements.txt; then \
@@ -56,6 +56,11 @@ RUN if grep -q '^[^#[:space:]]' requirements.txt; then \
         echo "No active python packages found to install."; \
     fi
 
+# Copy the rest of the project files
+COPY --chown=user:user . $HOME/app
+
+# Port for ttyd or FastAPI
 EXPOSE 7860
 
+# Default execution command
 CMD ["python3", "app.py"]