schema: add Init record

package.dhall

@@ -1,10 +1,10 @@
 { Schema =
       ./schema.dhall
-        sha256:1aa8c2f42fc6fc3055a35c1285314340f934aa50226c6cdc96f8d19471a84835
+        sha256:d393b005ad10d5b8e775956dbc4e792c9da9c7760baf03e537dfac52b1ecfd31
     ? ./schema.dhall
 , Schema/validate =
       ./validate.dhall
-        sha256:78f05c1c7d49d3d8854b8a000600a30e55c7c2771bf9f91dc4717ef30a191a91
+        sha256:aff9136148e3214a4ea0f091901516cf5e74eb24648492b60fa9ee6892e1237b
     ? ./validate.dhall
 , Schema/version =
       ./version.dhall

schema.dhall

@@ -40,7 +40,7 @@ let Schema =
               , MaxAge : Natural
               }
           , Logger : { JSON : Bool, Fmt : Optional Text }
-          , InitialAdminPassword : Text
+          , Init : { CreateAdmin : Bool, AdminPassword : Text }
           , Registration : { Allowed : Bool }
           }
       , default =
@@ -78,9 +78,16 @@ let Schema =
             , MaxAge = 3600
             }
           , Logger = { JSON = True, Fmt = None Text }
-          , InitialAdminPassword =
-              -- | used for the first admin, forced change on first login.
-              "50ce50fd0e4f5894d74c4caecb450b00c594681d9397de98ffc0c76af5cff5953eb795f7"
+          , Init =
+            { CreateAdmin =
+                -- | if this is True, attempt to create a user with admin
+                -- | privileges with the password specified below (or better -
+                -- | overriden); it fails if users already exist in the DB.
+                False
+            , AdminPassword =
+                -- | used for the first admin, forced change on first login.
+                "50ce50fd0e4f5894d74c4caecb450b00c594681d9397de98ffc0c76af5cff5953eb795f7"
+            }
           , Registration.Allowed = True
           }
       }

validate.dhall

@@ -5,7 +5,7 @@ let Prelude =
 
 let Schema =
         ./schema.dhall
-          sha256:1aa8c2f42fc6fc3055a35c1285314340f934aa50226c6cdc96f8d19471a84835
+          sha256:d393b005ad10d5b8e775956dbc4e792c9da9c7760baf03e537dfac52b1ecfd31
       ? ./schema.dhall
 
 let Schema/validate