Parametrise playbook for a Swedish deployment

- Domain, admin email and git sources are variables (vars.yml); site.yml asserts
  that placeholders have been replaced before running
- Remove DARC maintainers' SSH keys and the German URL-shortener redirects
- Track the sv branch by default
- README in Swedish

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

users.yml

@@ -1,13 +1,10 @@
 ex_users: []
 
-users:
-  - {
-      name: "dc4lw",
-      sshkeys: "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGJQ5A3Ea1vKUh63Gkv6CyK2pIHbEBe8ggs+kwHi3F3h",
-      state: "present",
-    }
-  - {
-      name: "dl9mj",
-      sshkeys: "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9fle0ZeS+KOrC+sY+uUQhn+BObbUHbFyaMXvCotACTGt0IBxA8gDG0SSCU/TlW69B4SJA0vgVVVGmXlYpqBx4RbeaPzDn0Ui8AAR5msn+eYWmGREDyQam1ZhFAlKyfU3efwbv7Uu0VeWzamwmrdihhUnsw+kvokZOH5LZzA/if0Yw7SV/hkU/QeAahciYSVTzZLzCmJFK6kMwgR9Doix/gjm69s5lOGvXldfm2LcMdiXdBFdKxG//z1Xn+69fWUg2LLilsz/cy4sGinCxpt5UQs3/VpR/JQO8rGhTEJno5vcFRVnMSv1Cp2VMh+2UXCQKSRRjKfOpsHyz8boFrEjr",
-      state: "present",
-  }
+# Administratörer som ska få SSH-nyckel och sudo på servern.
+# Exempel:
+#  - {
+#      name: "anna",
+#      sshkeys: "ssh-ed25519 AAAA... anna@laptop",
+#      state: "present",
+#    }
+users: []