Lending Tracker: fix cross-machine invite codes & sync reliability

[Guess34]

Patch update

• Fixed invite codes failing to join across computers.
• Cloud Sync now activates immediately when toggled on (no restart).
• Invite codes are confirmed published before sharing; clearer join error messages.
• Added a relay keepalive and catch-up sync so joiners get current group state.
• "Invite to Lending Group" now anchors on the player "Report" option.

Cloud Sync remains opt-in and off by default. No new dependencies.

[runelite-github-app]

lendingtracker: af437e4ac00ca30c9e8675141125ca0978053bbb..04be5658c36e0dbb57630dfdc1da1d92fd274b2a

[runelite-github-app]

This plugin requires a review from a Plugin Hub maintainer. The reviewer will request any additional changes if needed.

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Internal use only: Reviewer details Maintainer details

[riktenx]

• thread sleep is not allowed
• thread interrupt is not allowed

[riktenx]

get rid of this https://github.com/Guess34/Lend-Borrow_Tracker/blob/e52dbe4d7d6060dd199783d94e363d6fb7db3b5f/src/main/java/com/guess34/lendingtracker/services/ProofScreenshot.java#L166 and use the draw manager instead https://static.runelite.net/runelite-client/apidocs/net/runelite/client/ui/DrawManager.html#requestNextFrameListener(java.util.function.Consumer)

[riktenx]

you need much stricter gating of requests to your backend behind the opt-in flag. every api call should have a check for the optin config right before it, that throws an exception / returns early if it happens to be false, so it is exhaustively clear from reading the code that you're not making requests without user consent.