docs(samba): add install, configure, and uninstall recipes

recipes/samba/01_install-samba.md

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+# Install Samba
+
+This recipe installs Samba on Ubuntu, enables the required services, and configures a basic file share.
+
+## Install Packages
+
+```bash
+sudo apt update
+sudo apt install -y samba
+```
+
+## Verify Installation
+
+```bash
+smbd --version
+```
+
+Expected output:
+
+```text
+Version 4.x.x
+```
+
+## Enable Services
+
+```bash
+sudo systemctl enable smbd
+sudo systemctl enable nmbd
+sudo systemctl start smbd
+sudo systemctl start nmbd
+```
+
+## Verify Services
+
+```bash
+systemctl status smbd --no-pager
+systemctl status nmbd --no-pager
+```
+
+Both services should be reported as **active (running)**.
+
+## Configure Samba
+
+Replace the default configuration.
+
+```bash
+sudo cp smb.conf /etc/samba/smb.conf
+```
+
+Validate the configuration.
+
+```bash
+testparm
+```
+
+Expected output:
+
+```text
+Loaded services file OK.
+```
+
+## Restart Samba
+
+```bash
+sudo systemctl restart smbd
+sudo systemctl restart nmbd
+```
+
+## Configure Firewall (Optional)
+
+If UFW is enabled:
+
+```bash
+sudo ufw allow samba
+```
+
+## Verify Listening Ports
+
+```bash
+sudo ss -tulpn | grep smb
+```
+
+Expected output should include ports **139** and **445**.
+
+## Create Samba User (Optional)
+
+```bash
+sudo smbpasswd -a <username>
+sudo smbpasswd -e <username>
+```
+
+List configured Samba users.
+
+```bash
+sudo pdbedit -L
+```

recipes/samba/02_configure-share.md

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+# Configure Samba Share
+
+This recipe configures a basic Samba file share.
+
+## Backup Existing Configuration
+
+```bash
+sudo cp /etc/samba/smb.conf /etc/samba/smb.conf.bak
+```
+
+## Create Configuration
+
+Replace the existing configuration.
+
+```bash
+sudo tee /etc/samba/smb.conf >/dev/null <<'EOF'
+[global]
+   workgroup = WORKGROUP
+   server string = Samba Server
+   security = user
+   map to guest = Bad User
+
+[Share]
+   path = /srv/samba
+   browseable = yes
+   writable = yes
+   guest ok = no
+   read only = no
+   create mask = 0664
+   directory mask = 0775
+EOF
+```
+
+## Create Share Directory
+
+```bash
+sudo mkdir -p /srv/samba
+```
+
+## Configure Permissions
+
+Replace `<username>` with your Linux username.
+
+```bash
+sudo chown -R <username>:<username> /srv/samba
+sudo chmod -R 775 /srv/samba
+```
+
+## Create Samba User
+
+If the user does not already exist on Linux, create it first.
+
+```bash
+sudo smbpasswd -a <username>
+sudo smbpasswd -e <username>
+```
+
+## Validate Configuration
+
+```bash
+testparm
+```
+
+Expected output:
+
+```text
+Loaded services file OK.
+```
+
+## Restart Samba
+
+```bash
+sudo systemctl restart smbd
+sudo systemctl restart nmbd
+```
+
+## Verify Share
+
+```bash
+smbclient -L localhost -U <username>
+```
+
+Expected output should include:
+
+```text
+Sharename       Type
+---------       ----
+Share           Disk
+```

recipes/samba/03_uninstall-samba.md

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+# Uninstall Samba
+
+This recipe completely removes Samba from Ubuntu, including services, packages, and configuration files.
+
+## Stop Services
+
+```bash
+sudo systemctl stop smbd
+sudo systemctl stop nmbd
+```
+
+## Disable Services
+
+```bash
+sudo systemctl disable smbd
+sudo systemctl disable nmbd
+```
+
+## Remove Packages
+
+```bash
+sudo apt purge -y samba samba-common samba-common-bin smbclient
+sudo apt autoremove -y
+```
+
+## Remove Configuration
+
+```bash
+sudo rm -rf /etc/samba
+sudo rm -rf /var/lib/samba
+sudo rm -rf /var/cache/samba
+sudo rm -rf /var/log/samba
+```
+
+## Remove Firewall Rule (Optional)
+
+If UFW was configured:
+
+```bash
+sudo ufw delete allow samba
+```
+
+## Remove Shared Directories (Optional)
+
+Only run this if the directory was created exclusively for Samba and does not contain important files.
+
+```bash
+sudo rm -rf /srv/samba
+```
+
+## Verify Removal
+
+Check that the package is no longer installed.
+
+```bash
+dpkg -l | grep samba
+```
+
+No packages should be listed.
+
+Verify that the service no longer exists.
+
+```bash
+systemctl status smbd
+```
+
+Expected output:
+
+```text
+Unit smbd.service could not be found.
+```
+
+Verify that the configuration directory has been removed.
+
+```bash
+ls /etc/samba
+```
+
+Expected output:
+
+```text
+ls: cannot access '/etc/samba': No such file or directory
+```