CLI: add config path subcommand to print active config file path (#26256)

Merged via squash.

Prepared head SHA: b11c593a34c5730f4244c054e1d1ab536953b0ef
Co-authored-by: cyb1278588254 <48212932+cyb1278588254@users.noreply.github.com>
Co-authored-by: gumadeiras <5599352+gumadeiras@users.noreply.github.com>
Reviewed-by: @gumadeiras

src/cli/program/command-registry.ts

@@ -83,7 +83,7 @@ const coreEntries: CoreCliEntry[] = [
       {
         name: "config",
         description:
-          "Non-interactive config helpers (get/set/unset). Default: starts setup wizard.",
+          "Non-interactive config helpers (get/set/unset/file). Default: starts setup wizard.",
         hasSubcommands: true,
       },
     ],