- Fix CMIF serialization alignment error in RequestSyncDeliveryCacheWithApplicationIdAndDirectoryName by reordering parameters (DirectoryName before u64)
- Implement missing INotifierService and IDeliveryTaskSuspensionService classes with proper kernel event handling
- Add missing source files to CMakeLists.txt to resolve linker errors
- Update IServiceCreator to properly implement CreateDeliveryCacheProgressService methods instead of leaving them stubbed
- Add ProgressServiceBackend support to IServiceCreator with proper friend class access
- Fix kernel event creation by using KernelHelpers::ServiceContext instead of direct system calls
- Add proper includes for kernel_helpers.h and event management
Signed-off-by: Zephyron <zephyron@citron-emu.org>