fix: commit hardware-configuration.nix per host, remove incorrect gitignore

.gitignore

@@ -0,0 +1 @@
+.claude/

flake.lock

@@ -0,0 +1,49 @@
+{
+  "nodes": {
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1785119570,
+        "narHash": "sha256-Rgs2xKnGLFWQscxUaXX07oyZeuMDOHEbqDOsgliLFGM=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "d4fd24667c8cbef124bb70a20380cab75ec8474d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "release-26.05",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1785858998,
+        "narHash": "sha256-fKCq5jphd6l/Ms6gc3dptkw/TcKLYub9lQE5g6rbbkc=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "04607e1165ac22c5fde6dcc54c9e0b3c0487c555",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-26.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "home-manager": "home-manager",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

hosts/nixos/configuration.nix

@@ -77,5 +77,10 @@
     git
   ];
 
+  services.openssh = {
+    enable = true;
+    settings.PasswordAuthentication = true;
+  };
+
   system.stateVersion = "26.05";
 }