Add Bitwarden, setup script, remove redundant files, update disk requirements, and add LinuxServer preference

- Add Vaultwarden (Bitwarden) password manager to utilities.yml
  - Self-hosted password manager with web UI
  - SMTP configuration for email notifications
  - Admin token for management
  - Access at bitwarden.${DOMAIN}
  - Protected by Authelia SSO

- Create automated first-run setup script (scripts/setup-homelab.sh)
  - Installs Docker Engine and Compose V2
  - Configures user groups (sudo, docker)
  - Enables SSH for remote management
  - Detects NVIDIA GPU and provides manual driver installation instructions
  - Creates directory structure and Docker networks
  - Comprehensive instructions for post-setup deployment

- Remove redundant compose files (now in core.yml)
  - Deleted authelia.yml, duckdns.yml, gluetun.yml, traefik.yml
  - All services consolidated into unified core.yml stack
  - Eliminates confusion and duplication

- Update disk space requirements across documentation
  - Changed from "100GB+ system, 1TB+ media" to:
  - "120GB+ system drive (NVMe or SSD highly recommended)"
  - "2TB+ for media & additional disks for services like Nextcloud"
  - Updated in README.md and getting-started.md

- Add preference for LinuxServer.io images
  - Updated copilot-instructions.md
  - LinuxServer images support PUID/PGID for proper file permissions
  - Preference noted in consistency guidelines

- Update core stack documentation
  - Emphasize unified core.yml deployment
  - Add both deployment methods (cd to directory vs full path)
  - Update getting-started.md with correct deployment steps
  - Note removal of separate stack files

- Add Bitwarden environment variables to .env.example
  - BITWARDEN_ADMIN_TOKEN, SIGNUPS_ALLOWED, INVITATIONS_ALLOWED
  - SMTP configuration for email notifications
  - Generation instructions included

- Update services-reference.md
  - Add Vaultwarden to utilities section (now 7 services)
  - Update service count and access URLs

All documentation now consistent with unified core stack approach and includes all requested features.

Co-authored-by: kelinfoxy <67766943+kelinfoxy@users.noreply.github.com>

scripts/README.md

@@ -0,0 +1,74 @@
+# AI-Homelab Setup Scripts
+
+## setup-homelab.sh
+
+Automated first-run setup script for preparing a fresh Debian installation for AI-Homelab deployment.
+
+### What It Does
+
+1. **System Update** - Updates all system packages
+2. **Install Dependencies** - Installs required packages (curl, git, etc.)
+3. **Install Docker** - Adds Docker repository and installs Docker Engine with Compose V2
+4. **Configure User Groups** - Adds user to sudo and docker groups
+5. **Configure SSH** - Enables and starts SSH server for remote access
+6. **Detect NVIDIA GPU** - Checks for NVIDIA graphics card and provides manual driver installation instructions
+7. **Create Directories** - Sets up `/opt/stacks`, `/opt/dockge`, `/mnt/media`, `/mnt/downloads`
+8. **Create Docker Networks** - Creates homelab-network, traefik-network, and media-network
+
+### Usage
+
+```bash
+# Download the repository
+git clone https://github.com/kelinfoxy/AI-Homelab.git
+cd AI-Homelab
+
+# Make the script executable (if needed)
+chmod +x scripts/setup-homelab.sh
+
+# Run with sudo
+sudo ./scripts/setup-homelab.sh
+```
+
+### After Running
+
+1. Log out and log back in for group changes to take effect
+2. Edit `.env` file with your configuration
+3. Deploy the core infrastructure stack
+4. Deploy the infrastructure stack (includes Dockge)
+5. Access Dockge to manage remaining stacks
+
+### NVIDIA GPU Support
+
+If an NVIDIA GPU is detected, the script will provide instructions for manual driver installation:
+
+1. Identify your GPU model from the output
+2. Visit https://www.nvidia.com/Download/index.aspx
+3. Download the official driver for your GPU
+4. Run the installer: `sudo bash NVIDIA-Linux-x86_64-XXX.XX.run`
+5. Install container toolkit:
+   ```bash
+   sudo apt-get install -y nvidia-container-toolkit
+   sudo nvidia-ctk runtime configure --runtime=docker
+   sudo systemctl restart docker
+   ```
+
+This manual approach avoids driver conflicts that often occur with automated installation methods.
+
+### Requirements
+
+- Fresh Debian installation (Debian 11 or 12)
+- Root access (via sudo)
+- Internet connection
+
+### Tested On
+
+- Debian 11 (Bullseye)
+- Debian 12 (Bookworm)
+
+### Notes
+
+- The script is idempotent - safe to run multiple times
+- Creates directories with proper ownership
+- Configures Docker networks automatically
+- SSH is enabled for remote management
+- NVIDIA driver installation requires manual intervention for reliability