refactor: rename config dir to lyrathorpe and host labels

Move ./emmathorpe -> ./lyrathorpe (git mv preserves history) and rename the MBP/X1 nixosConfiguration names to lyrathorpe-mbp / lyrathorpe-x1c. The EDaaS host keeps its emmathorpe-edaas name and Emma Thorpe identity; it still imports the shared (renamed) config dir.

Derivation outputs are byte-identical to before; pure relabel.

flake.nix

@@ -53,7 +53,7 @@
 
         # Shared scaffolding for every host: common user, overlays, home-manager.
         baseModules = [
-          ./emmathorpe/user.nix
+          ./lyrathorpe/user.nix
           {
             nixpkgs.overlays = overlays;
             nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) unfreePackages;
@@ -103,32 +103,32 @@
         # give it a name, its `system`, the owning user, and the module lists.
         # mapAttrs below turns each entry into a nixosConfiguration of the same name.
         hosts = {
-          emmathorpe-mbp = {
+          lyrathorpe-mbp = {
             system = "aarch64-linux";
             username = "lyrathorpe";
             fullName = "Lyra Thorpe";
             modules = [
               ./system/machine/MBP-Asahi/configuration.nix
               nixos-apple-silicon.nixosModules.default
-              ./emmathorpe/swaywm.nix
+              ./lyrathorpe/swaywm.nix
             ];
             homeModules = [
-              ./emmathorpe/home
-              ./emmathorpe/home/desktop.nix
+              ./lyrathorpe/home
+              ./lyrathorpe/home/desktop.nix
             ];
           };
 
-          emmathorpe-x1c = {
+          lyrathorpe-x1c = {
             system = "x86_64-linux";
             username = "lyrathorpe";
             fullName = "Lyra Thorpe";
             modules = [
               ./system/machine/X1/configuration.nix
-              ./emmathorpe/swaywm.nix
+              ./lyrathorpe/swaywm.nix
             ];
             homeModules = [
-              ./emmathorpe/home
-              ./emmathorpe/home/desktop.nix
+              ./lyrathorpe/home
+              ./lyrathorpe/home/desktop.nix
             ];
           };
 
@@ -139,10 +139,10 @@
             modules = [
               ./system/machine/EDaaS/configuration.nix
               nixos-wsl.nixosModules.default
-              ./emmathorpe/swaywm.nix
+              ./lyrathorpe/swaywm.nix
             ];
             homeModules = [
-              ./emmathorpe/home
+              ./lyrathorpe/home
               ./system/modules/work/default.nix
             ];
           };