fix: temporarily disable Transmission due to build issues

- Disable Transmission service due to compilation errors in unstable
- Keep download directory creation for future re-enablement
- Remove Transmission firewall port (9091) from sleeper-service
- Focus on deploying NFS server functionality first

This allows sleeper-service deployment to proceed with NFS services
while Transmission package issues are resolved upstream.

machines/sleeper-service/configuration.nix

@@ -54,7 +54,7 @@
   programs.zsh.enable = true;
 
   # Firewall configuration
-  networking.firewall.allowedTCPPorts = [ 22 9091 ]; # SSH and Transmission RPC
+  networking.firewall.allowedTCPPorts = [ 22 ]; # SSH only (Transmission disabled temporarily)
 
   system.stateVersion = "25.05";
 }

modules/system/transmission.nix

@@ -1,8 +1,10 @@
 { config, pkgs, ... }:
 
 {
+  # Transmission temporarily disabled due to build issues
+  # Will re-enable once package is stable
   services.transmission = {
-    enable = true;
+    enable = false;
     user = "geir";
     group = "users";
     settings.rpc-port = 9091;
@@ -14,4 +16,9 @@
       rpc-host-whitelist = "sleeper-service,localhost";
     };
   };
+  
+  # Ensure downloads directory exists even without Transmission
+  systemd.tmpfiles.rules = [
+    "d /mnt/storage/downloads 0755 geir users -"
+  ];
 }