Update dependencies and fix zen-browser package name

- Change "zen-browser" to "zen" in cask configuration
- Add system.primaryUser setting in darwin.nix
- Remove commented networking.hosts configuration
- Update flake.lock with latest home-manager, nix-darwin, and nixpkgs

cask.nix

@@ -26,7 +26,7 @@
   "figma"
   "arc"
   "firefox"
-  "zen-browser"
+  "zen"
   "brave-browser"
   "vivaldi"
   "bitwarden"

darwin.nix

@@ -20,12 +20,7 @@
   # Nix Darwin
   # https://daiderd.com/nix-darwin/manual/index.html
 
-  # networking.hosts = {
-  #   "127.0.0.1" = [
-  #     "localhost"
-  #     "dev.buena.com"
-  #   ];
-  # };
+  system.primaryUser = host.username;
 
   system.defaults = {
     # Security

flake.lock

@@ -7,11 +7,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1747073329,
-        "narHash": "sha256-scQ27LiotByFatLKsqQ5VQSG7ynyXigRgA9ob3CYqkg=",
+        "lastModified": 1748529677,
+        "narHash": "sha256-MJEX3Skt5EAIs/aGHD8/aXXZPcceMMHheyIGSjvxZN0=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "0b24658ec09908e5a6515cacc54f29d589c8423b",
+        "rev": "da282034f4d30e787b8a10722431e8b650a907ef",
         "type": "github"
       },
       "original": {
@@ -27,11 +27,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1747069642,
-        "narHash": "sha256-a4TdGi/Ju8P3r5OIecNfM3LH3kccMY0dIo+EwiyphmM=",
+        "lastModified": 1748352827,
+        "narHash": "sha256-sNUUP6qxGkK9hXgJ+p362dtWLgnIWwOCmiq72LAWtYo=",
         "owner": "LnL7",
         "repo": "nix-darwin",
-        "rev": "d642c9856003ed37ce34dab618abf37e3ade1061",
+        "rev": "44a7d0e687a87b73facfe94fba78d323a6686a90",
         "type": "github"
       },
       "original": {
@@ -42,11 +42,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1746576598,
-        "narHash": "sha256-FshoQvr6Aor5SnORVvh/ZdJ1Sa2U4ZrIMwKBX5k2wu0=",
+        "lastModified": 1748406211,
+        "narHash": "sha256-B3BsCRbc+x/d0WiG1f+qfSLUy+oiIfih54kalWBi+/M=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b3582c75c7f21ce0b429898980eddbbf05c68e55",
+        "rev": "3d1f29646e4b57ed468d60f9d286cde23a8d1707",
         "type": "github"
       },
       "original": {