2025.5.30.1277 - Bugfixes for grabbing & mesh upload, security fix

Got another build for you! Since it's Friday, it's mostly just bugfixes for things!

The build is compatible with previous one! Though given the security fix we recommend updating as soon as you can.

Security:

• RenderToTextureAsset now properly fails if the user is unfocused from the world. This prevents situations where the node would render visuals from other sessions (reported by @bd_ , security ticket #804462 and @chameleono2, security ticket #552727 fixed by @dantetucker)

Tweaks:

• Removed debug logging on bounds on empty meshes (based on report by brecert, @luxkitty, @nytra, issue #4513)

Locale:

• Merged Japanese locale update by @zozokasu
• Merged German locale update by @muppeq
• Merged Korean locale update by @mirpasec

Fixes:

• Reverted changed in 2025.5.30.4 that caused GrabBlock to apply incorrectly to hierarchies (reported by @colin.cat, issue #4511, fixed by @probableprime ) -- This also fixes grabbable objects under tools not working (reported by @aegis_wolf, @modernballoonie, issue #4514)
• Fixed Laser Icons not updating for Some Grabbables in GrabBlock Scenarios (discovered when working on issue #4511, fixed by @probableprime)
• Fixed UV imprecisions due to using half datatype for static meshes and float -> half causing imprecision (based on report by @ohzee, @bluecyro, @foohy, @pizza.hut, issue #4519) -- Note: We'll likely try to switch back to half once we move to .NET 9 as the native implementation has better conversion algorithm
• Fixed potential race condition in GridMesh when using displacement texture