Move the two in-repo consumers onto crdt_sync_dart-v0.11.1

sync_settings_ui 0.4.1 and crdt_sync_flutter 0.3.1 both pinned the v0.11.0
tag, which predates crdt_sync_dart's exact pins -- so anything taking these
libraries resolved the shared package to its pre-upgrade constraints.

`flutter pub get` re-resolves cleanly in both; 88 tests green in
crdt_sync_flutter, 35 in sync_settings_ui, 321 in crdt_sync_dart.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CRykabMwPgDzFHcARoqpaK

crdt_sync_flutter/pubspec.yaml

@@ -4,7 +4,7 @@ description: >-
   persisted per-install device id, and a one-call bootstrap. Removes the
   ~150 lines of firebase_backend.dart every consuming app was copying.
 publish_to: 'none'
-version: 0.3.0
+version: 0.3.1
 
 environment:
   sdk: ^3.12.2
@@ -13,7 +13,7 @@ dependencies:
   crdt_sync:
     git:
       url: https://github.com/kuhyx/utils
-      ref: crdt_sync_dart-v0.11.0
+      ref: crdt_sync_dart-v0.11.1
       path: crdt_sync_dart
   crypto: 3.0.7
   flutter:

sync_settings_ui/pubspec.yaml

@@ -5,7 +5,7 @@ description: >-
   injected closures -- no keystore or platform plugin access lives in this
   package itself.
 publish_to: 'none'
-version: 0.4.0
+version: 0.4.1
 
 environment:
   sdk: ^3.12.2
@@ -14,7 +14,7 @@ dependencies:
   crdt_sync:
     git:
       url: https://github.com/kuhyx/utils
-      ref: crdt_sync_dart-v0.11.0
+      ref: crdt_sync_dart-v0.11.1
       path: crdt_sync_dart
   flutter:
     sdk: flutter