infra: auto reset password of public user

nix/infra/backend.nix

@@ -30,6 +30,28 @@ in
     };
   };
 
+  systemd.services.public-pw-reset = {
+    enable = true;
+    description = "Rest Public Password";
+    serviceConfig = {
+      User = "root";
+      script = ''
+        /root/fixpw.sh
+      '';
+    };
+  };
+
+  systemd.timers..public-pw-reset = {
+    enable = true;
+    description = "Rest Public Password";
+    wants = [ "public-pw-reset.services" ];
+    wantedBy = [ "multi-user.target" ];
+    timerConfig = {
+      OnBootSec= "0min";
+      OnCalendar = "*:0/1";
+    };
+  };
+
   services.postgresql = {
     enable = true;
     ensureDatabases = [ user ];