feat(contracts,automation): add multi-group scopes, SMS macros and operator registry

- Allow scheduled operations to resolve multiple device groups.

- Add reusable SMS time and random-value macros.

- Add China operator PLMN metadata shared by API and UI.

apps/api/src/application/automation/target-resolver.test.ts

@@ -64,7 +64,7 @@ describe('resolveTargets', () => {
     db.close();
   });
 
-  it('resolves the Hub all-devices and single-group selectors', () => {
+  it('resolves the Hub all-devices and group selectors', () => {
     const db = fixture();
     const now = '2026-07-30T00:00:00.000Z';
     db.prepare(
@@ -78,6 +78,9 @@ describe('resolveTargets', () => {
     expect(resolveTargets(db, { mode: 'group', groupId: 'g-lab' })).toEqual([
       { id: 'a', revision: 3 },
     ]);
+    expect(resolveTargets(db, { mode: 'groups', groupIds: ['g-lab', 'g-office'] })).toEqual([
+      { id: 'a', revision: 3 },
+    ]);
     db.close();
   });