fix: correct test failures and error propagation

- Add CacheScope provider in UserProfileCacheRepository tests
- Remove catch blocks that swallowed errors in _loadHistory/_loadMoreHistory
- Errors now properly propagate to switchUser() caller

apps/lib/features/contacts/data/repositories/friend_repository.dart

@@ -117,10 +117,6 @@ class FriendRepositoryImpl extends CachedRepository<List<FriendUser>>
       }
       final request = FriendRequest.fromJson(data);
       await _invalidateFriendCaches(friendshipId);
-      _logger.info(
-        message: 'Friend request accepted',
-        extra: {'friendship_id': friendshipId},
-      );
       return request;
     } catch (e, stackTrace) {
       _logger.error(
@@ -145,10 +141,6 @@ class FriendRepositoryImpl extends CachedRepository<List<FriendUser>>
       }
       final request = FriendRequest.fromJson(data);
       await _invalidateFriendCaches(friendshipId);
-      _logger.info(
-        message: 'Friend request declined',
-        extra: {'friendship_id': friendshipId},
-      );
       return request;
     } catch (e, stackTrace) {
       _logger.error(