Split shared host config into dedicated modules

- Add shared modules for boot, hardware, networking, input, and host defaults
- Move host-specific TOML flags to new option namespaces
- Update SSH and service defaults for the new layout

hosts/dunamis/host.toml

@@ -4,9 +4,12 @@ id = "c7f6c4a1"
 type = "workstation"
 stateVersion = "24.11"
 
+[boot.secureBoot]
+enable = true
+
+[boot.tpmDiskUnlock]
+enable = true
+
 [config]
 locale = "uk_UA.UTF-8"
 timeZone = "Europe/Kyiv"
-secureBoot = true
-tpmDiskUnlock = true
-