✨ [pi4] Fix nginx config with TLS

hosts/pi4/nginx.nix

@@ -14,9 +14,11 @@ let
     forceSSL = true;
     inherit locations;
   };
-  homelab = common.localIpAddr 231;
+  homelab = "http://${common.localIpAddr 231}";
   homelabProxy = proxyTo homelab; # TODO get homelab local ip from systems
   redirect = subdomain: {
+    enableACME = true;
+    forceSSL = true;
     globalRedirect = if subdomain == "" then domain else "${subdomain}.${domain}";
   };
 in
@@ -46,7 +48,7 @@ in
       # Uptime Kuma
       "status.${domain}" = homelabProxy 3001;
       # Headscale
-      "vpm.${domain}" = proxyLocations {
+      "vpn.${domain}" = proxyLocations {
         "/web".proxyPass = "${homelab}:8084";
         "/".proxyPass = "${homelab}:8082";
       };