Add dnfinition connection port

Author: Your Name

opsm_ex/lib/opsm/cli.ex

@@ -239,13 +239,17 @@ defmodule Opsm.CLI do
     CONNECTION PORTS (system package managers):
       @deb      Debian/Ubuntu (apt)
       @rpm      Fedora/RHEL (dnf/yum)
+      @rpm-ostree Fedora Silverblue (rpm-ostree)
+      @dnfinition Unified OS PM bridge (dnfinition)
       @pacman   Arch Linux (pacman)
       @winget   Windows (winget)
       @choco    Windows (Chocolatey)
       @scoop    Windows (Scoop)
       @homebrew macOS/Linux (brew)
       @nix      NixOS/any (nix-env)
       @guix     Guix System (guix)
+      @flatpak  Flatpak (flatpak)
+      @snap     Snap (snap)
 
     EXAMPLES:
       opsm install lodash                      # From default/detected registry

opsm_ex/lib/opsm/federation.ex

@@ -408,6 +408,10 @@ defmodule Opsm.Federation do
       target: :rpm_ostree,
       command: "rpm-ostree"
     },
+    dnfinition: %ConnectionPort{
+      target: :dnfinition,
+      command: "dnfinition"
+    },
     snap: %ConnectionPort{
       target: :snap,
       command: "snap"
@@ -769,6 +773,7 @@ defmodule Opsm.Federation do
   defp install_args(:deb, package, _opts), do: ["install", "-y", package]
   defp install_args(:rpm, package, _opts), do: ["install", "-y", package]
   defp install_args(:rpm_ostree, package, _opts), do: ["install", package]
+  defp install_args(:dnfinition, package, _opts), do: ["install", package]
   defp install_args(:pacman, package, _opts), do: ["-S", "--noconfirm", package]
   defp install_args(:homebrew, package, _opts), do: ["install", package]
   defp install_args(:nix, package, _opts), do: ["-iA", "nixpkgs.#{package}"]