Add Debian packaging skeleton (5 component debs, debhelper-13)

debian/control

@@ -0,0 +1,55 @@
+Source: ubuntu-fido
+Section: admin
+Priority: optional
+Maintainer: Dangerous Things <ops@dangerousthings.com>
+Build-Depends:
+ debhelper-compat (= 13),
+ cargo,
+ rustc (>= 1.78),
+ libpam0g-dev,
+ libgtk-4-dev,
+ libadwaita-1-dev,
+ libfido2-dev,
+ pkg-config
+Standards-Version: 4.6.2
+Homepage: https://github.com/dangerousthings/ubuntu-fido
+Vcs-Browser: https://github.com/dangerousthings/ubuntu-fido
+Vcs-Git: https://github.com/dangerousthings/ubuntu-fido.git
+
+Package: ubuntu-fido
+Architecture: any
+Depends: ubuntu-fido-daemon (= ${binary:Version}),
+         ubuntu-fido-pam (= ${binary:Version}),
+         ubuntu-fido-cli (= ${binary:Version}),
+         ${misc:Depends}
+Recommends: ubuntu-fido-gui (= ${binary:Version})
+Suggests: ubuntu-fido-gnome-integration
+Description: Turnkey FIDO2/U2F/TOTP MFA for Ubuntu (metapackage)
+ Installs the full ubuntu-fido stack: daemon, PAM module, CLI, and
+ (if recommended) GUI.
+
+Package: ubuntu-fido-daemon
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}, libpam-u2f, libfido2-1
+Description: System daemon for ubuntu-fido MFA management
+ Provides the privileged D-Bus service that orchestrates enrollment,
+ policy edits, and lockout-prevention checks.
+
+Package: ubuntu-fido-pam
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}, libpam-runtime
+Description: PAM module backstopping ubuntu-fido first-login enrollment
+ Refuses authentication when /var/lib/ubuntu-fido/pending/<user> exists
+ and the user has not completed first-login MFA setup.
+
+Package: ubuntu-fido-cli
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}, ubuntu-fido-daemon
+Description: CLI for ubuntu-fido (admin and fleet)
+ Configure policy, enroll on behalf of users, generate recovery codes.
+
+Package: ubuntu-fido-gui
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}, ubuntu-fido-daemon
+Description: GTK4/libadwaita UI for ubuntu-fido
+ End-user-facing settings panel for enrollment and policy.