feat(playerinvitationdialog): implement scePlayerInvitationDialogGetResult

[aryanrawatispro-ship-it]

What

scePlayerInvitationDialogGetResult was the last unimplemented export of libScePlayerInvitationDialog. It now makes the common dialog checks of sceWebBrowserDialogGetResult:

• NOT_INITIALIZED (0x80B80003) before scePlayerInvitationDialogInitialize and after scePlayerInvitationDialogTerminate;
• ARG_NULL (0x80B8000D) for a null result;
• NOT_FINISHED (0x80B80005) while the dialog is initialized or running.

The dialog shows no UI and sends no invitation, so a finished dialog reports USER_CANCELED with error code 0, and the reserved bytes are cleared.

The 40-byte ScePlayerInvitationDialogResult layout (error code, result, 32 reserved bytes) comes from SharpProspero's PlayerInvitationDialog.cs. The existing TechnicalDebt entry for the dialog now records the result and its sources, and the dialog is dropped from the "exports added without an implementation have assumed signatures" line.

Tested

• Linux (Ubuntu 24.04 on WSL2), GCC 13.2, Release, BUILD_TESTING=ON, lavapipe.
• player_invitation_dialog: the result before initialization and after termination, a null result, the result while initialized and while running, and the finished result (error code, USER_CANCELED, cleared reserved bytes over a buffer filled with 0xFF). On main the same test stops with scePlayerInvitationDialogGetResult not implemented.
• ctest: 358 of 359 pass. guest_sce_net also fails on unmodified main in this environment (its resolver test), unrelated to this change.
• The patched libScePlayerInvitationDialog.prx exports AhqlQ8cngrk.
• Not tested on Windows or with a title.

Checklist

• Based on current main; no other open PR implements the same functions
• One topic per PR; follow-ups go in a new PR
• No comments in code except technical debt
• Unimplemented paths throw (NotImplemented_nid_no_patch); silent stubs are listed in TechnicalDebt
• No notes, investigation .md files or images added to the repository (attach them to this PR)
• New third-party code is a submodule built from source
• Generic behaviour, not specific to one title
• Depends on: none
• AI-assisted: yes

🤖 Generated with Claude Code

[github-actions]

Other open pull requests touch the same code. Merging one will break the other, or both implement the same thing. If this one builds on them, list them in Depends on.

Pull request	Conflicting files (lines on main)	Same exports	Same new files
#805	docs/dev/TechnicalDebt.md L189-190
#907	docs/dev/TechnicalDebt.md L189-190
#934	docs/dev/TechnicalDebt.md L189-190

[github-actions]

Progress report (5895ea7 → 8ef51df)

📈 System libraries: 87.03% (+0.03%, +1 implemented functions)

✅ 1 implemented

Library	Name
libScePlayerInvitationDialog	scePlayerInvitationDialogGetResult