chore: Remove obsolete files and root scripts

- Remove .dockerignore, Dockerfile from root
- Remove LICENSE (moved to docs)
- Remove archive-docs/ directory
- Remove run.sh (moved to src/)
- Clean up obsolete configuration

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

Dockerfile

@@ -1,58 +0,0 @@
-# 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"]