Add Debian installer scripts and Python TUI installer

[Copilot]

Adds two new top-level folders providing installation tooling for Melvin God Mode: Debian-targeted shell scripts and a cross-platform Python TUI installer.

Debian/

• install.sh — Full system installer: apt packages, Ollama, Python venv at /opt/melvin/venv, config/data directories, optional systemd service. Accepts --uninstall.
• setup-dependencies.sh — apt-only dependency step; accepts --minimal for bare installs (useful in CI/offline scenarios).
• configure.sh — Interactive post-install wizard: model selection, Ollama pull, host/port, AES-256 encryption toggle. Uses jq for safe JSON serialisation with a printf fallback.

python-installer/

• installer.py — Full-screen TUI installer built on stdlib curses (no extra pip deps). Screens: Install, Model Manager, Configure (in-TUI config.json editor), Uninstall, About. Uses scrollable menus, checkbox multi-select, and live progress bars.

  ███╗   ███╗███████╗██╗    ██╗   ██╗██╗███╗   ██╗
  ...
            God Mode  v1.0.0  –  Installer
  ──────────────────────────────────────────────────

  ↑/↓ Navigate   Enter Select   q Quit

Housekeeping

• .gitignore added: excludes __pycache__/, .pyc, venvs, editor artefacts.

Original prompt

I want to make this repository have another folder called Debian with options for Debian machines. and another called python-installer which will be an all in one python script using tui for the layout in the terminal

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