refactor: drop disko, simplify inputs, centralize fuse/rclone, bump state versions

- Remove disko everywhere:
  - Delete hosts/Nixbook/disko.nix and hosts/Nixtest/disko.nix
  - Drop disko input, modules, and disko-install app
  - Update README to remove disko mention
- Simplify flake inputs:
  - Use nixpkgs = nixos-unstable only
  - Home Manager -> master (follows nixpkgs)
  - Remove nixpkgs-unstable and vscode-extensions
  - Pass allowUnfree via specialArgs
- Centralize storage tools:
  - Add fuse3 and rclone to hosts/common/default.nix
  - Remove hosts/common/rclone.nix and screen.nix
  - Add user thiago to "fuse" group
  - Drop per-host rclone packages
- NVIDIA module:
  - Use pkgs.linuxPackages.nvidiaPackages.latest (no unstable import)
  - Keep nvidiaSettings=true, open=false
  - Remove sunshine service block
- Hosts:
  - Nixstation: remove Hyprland block, zramSwap 30% -> 25%
  - Clean hardware-configuration args
- Versions:
  - system.stateVersion: 24.05 -> 25.11 (Nixstation)
  - home.stateVersion: 24.05 -> 25.11
- README: adjust Nixbook and common modules descriptions

hosts/Nixstation/default.nix

@@ -8,8 +8,6 @@
     ../common/keychron.nix
     ../common/network.nix
     ../common/nvidia/default.nix
-    ../common/rclone.nix
-    ../common/screen.nix
     ./hardware-configuration.nix
   ];
 
@@ -111,11 +109,6 @@
 
     # };
     dconf.enable = true;
-    hyprland = {
-      enable = false;
-      withUWSM = true;
-      xwayland.enable = true;
-    };
     virt-manager.enable = true;
   };
   security.pam.services.gdm.enableGnomeKeyring = true;
@@ -150,8 +143,6 @@
 
     flatpak.enable = true;
 
-
-
     pipewire = {
       enable = true;
       alsa.enable = true;
@@ -159,6 +150,7 @@
       pulse.enable = true;
     };
   };
+
   systemd = {
     services."getty@tty1".enable = false;
     services."autovt@tty1".enable = false;
@@ -184,7 +176,7 @@
       };
     };
   };
-  system.stateVersion = "24.05"; # keep it!
+  system.stateVersion = "25.11"; # keep it!
   time.timeZone = "America/Sao_Paulo";
   virtualisation = {
     vmware.host.enable = false;
@@ -199,7 +191,7 @@
 
   zramSwap = {
     enable = true;
-    memoryPercent = 30;
+    memoryPercent = 25;
     algorithm = "zstd";
   };
 }