feat: add local backup CLI (#40163)

Merged via squash.

Prepared head SHA: ed46625ae2
Co-authored-by: shichangs <46870204+shichangs@users.noreply.github.com>
Co-authored-by: gumadeiras <5599352+gumadeiras@users.noreply.github.com>
Reviewed-by: @gumadeiras

src/cli/program/command-registry.ts

@@ -92,6 +92,19 @@ const coreEntries: CoreCliEntry[] = [
       mod.registerConfigCli(program);
     },
   },
+  {
+    commands: [
+      {
+        name: "backup",
+        description: "Create and verify local backup archives for OpenClaw state",
+        hasSubcommands: true,
+      },
+    ],
+    register: async ({ program }) => {
+      const mod = await import("./register.backup.js");
+      mod.registerBackupCommand(program);
+    },
+  },
   {
     commands: [
       {