feat: implement missing kernel event handle and service function

- Implement CreateInterruptEvent SVC function to resolve panic
  - Add proper resource management with KScopedResourceReservation
  - Use regular KEvent as placeholder for interrupt events
  - Add proper cleanup with SCOPE_EXIT
  - Include debug logging for troubleshooting

- Implement GetLaunchRequiredVersionUpgrade in IApplicationFunctions service
  - Fix "Unknown / unimplemented function" error for command 210
  - Return event handle instead of boolean to match Nintendo Switch API
  - Use state_changed_event as placeholder until dedicated event is implemented
  - Add function declaration to header file

Tested with Hollow Knight: Silksong - successfully boots.

Signed-off-by: Zephyron <zephyron@citron-emu.org>

src/core/hle/service/am/service/application_functions.cpp

@@ -86,7 +86,7 @@ IApplicationFunctions::IApplicationFunctions(Core::System& system_, std::shared_
         {181, nullptr, "UpgradeLaunchRequiredVersion"},
         {190, nullptr, "SendServerMaintenanceOverlayNotification"},
         {200, nullptr, "GetLastApplicationExitReason"},
-        {210, nullptr, "GetLaunchRequiredVersionUpgrade"},
+        {210, D<&IApplicationFunctions::GetLaunchRequiredVersionUpgrade>, "GetLaunchRequiredVersionUpgrade"},
         {211, nullptr, "GetLaunchRequiredVersionUpgradeStatus"},
         {300, nullptr, "RequestToLaunchApplication"},
         {301, nullptr, "RequestToLaunchApplicationWithUserAndArguments"},
@@ -508,4 +508,13 @@ Result IApplicationFunctions::PrepareForJit() {
     R_SUCCEED();
 }
 
+Result IApplicationFunctions::GetLaunchRequiredVersionUpgrade(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    // TODO(ZEP): Add a dedicated launch_required_version_upgrade_event when implemented
+    *out_event = m_applet->state_changed_event.GetHandle();
+
+    R_SUCCEED();
+}
+
 } // namespace Service::AM

src/core/hle/service/am/service/application_functions.h

@@ -77,6 +77,7 @@ private:
     Result GetNotificationStorageChannelEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
     Result GetHealthWarningDisappearedSystemEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
     Result PrepareForJit();
+    Result GetLaunchRequiredVersionUpgrade(OutCopyHandle<Kernel::KReadableEvent> out_event);
 
     const std::shared_ptr<Applet> m_applet;
 };