feat: Phase 1 - Project structure and build environment

- Add project directory structure with config, src, tests directories
- Implement run.sh host wrapper script for Docker-based workflow
- Create Dockerfile for build/test environment with live-build
- Add basic live-build configuration with preseed and package lists
- Add .gitignore and .dockerignore files

This establishes the foundation for building the secure Debian ISO.

💘 Generated with Crush

Assisted-by: GLM-4.6 via Crush <crush@charm.land>

Dockerfile

@@ -0,0 +1,58 @@
+# KNEL-Football ISO Builder - Dockerfile
+# Multi-stage build for security hardening
+
+# Base stage
+FROM debian:13.3-slim AS base
+
+# Set environment variables
+ENV DEBIAN_FRONTEND=noninteractive
+ENV LANG=C.UTF-8
+
+# Install base dependencies
+RUN apt-get update && apt-get install -y \
+    ca-certificates \
+    gnupg \
+    curl \
+    wget \
+    git \
+    && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# Builder stage
+FROM base AS builder
+
+# Install build dependencies
+RUN apt-get update && apt-get install -y \
+    live-build \
+    debootstrap \
+    squashfs-tools \
+    xorriso \
+    grub-pc-bin \
+    grub-efi-amd64-bin \
+    mtools \
+    dosfstools \
+    && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# Install testing dependencies
+RUN apt-get update && apt-get install -y \
+    bats \
+    shellcheck \
+    nftables \
+    iptables \
+    && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# Install additional security tools
+RUN apt-get update && apt-get install -y \
+    auditd \
+    rsyslog \
+    && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# Create workspace directory
+WORKDIR /workspace
+
+# Set proper permissions
+RUN groupadd -r builder && useradd -r -g builder builder
+RUN chown -R builder:builder /workspace
+USER builder
+
+# Default command
+CMD ["/bin/bash"]