refactor: archive old features directory to features.old

The new profile-based structure (home/base, home/desktop, home/server,
home/profiles/, home/coding) is fully operational and imported via
home/lib/mkHomeConfig. The legacy home/features directory is no longer
referenced anywhere in the configuration.

Archived rather than deleted to preserve history for reference.

home/features.old/cli/television.nix

@@ -0,0 +1,64 @@
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.features.cli.television;
+in {
+  options.features.cli.television.enable = mkEnableOption "enable nitch";
+
+  config = mkIf cfg.enable {
+    programs.television = {
+      enable = true;
+      channels = {
+        tldr = {
+          metadata = {
+            description = "Browse TLDR pages";
+            name = "tldr";
+            requirements = [
+              "tldr"
+            ];
+          };
+          preview = {
+            command = "tldr '{}'";
+          };
+          source = {
+            command = "tldr --list";
+          };
+        };
+        git-diff = {
+          metadata = {
+            description = "A channel to select files from git diff commands";
+            name = "git-diff";
+            requirements = [
+              "git"
+            ];
+          };
+          preview = {
+            command = "git diff HEAD --color=always -- '{}'";
+          };
+          source = {
+            command = "git diff --name-only HEAD";
+          };
+        };
+        git-log = {
+          metadata = {
+            description = "A channel to select from git log entries";
+            name = "git-log";
+            requirements = [
+              "git"
+            ];
+          };
+          preview = {
+            command = "git show -p --stat --pretty=fuller --color=always '{0}'";
+          };
+          source = {
+            command = "git log --oneline --date=short --pretty=\"format:%h %s %an %cd\" \"$@\"";
+            output = "{split: :0}";
+          };
+        };
+      };
+    };
+  };
+}