[Big-Iron-Cheems]

Type of change

• Bug fix
• New feature

Description

Fixes a render-thread crash when using Meteor's ESP or Chams with Litematica on Minecraft 26.3.

Meteor's custom outline renderer previously reused vanilla's RenderBuffers and executed outline rendering outside the vanilla main-pass timing, which could cause Cannot append draw after upload or invalid frame-graph resource access.

This change:

• Defers Meteor's custom outline rendering until the vanilla main pass.
• Uses a dedicated RenderBuffers instance for Meteor's outline dispatcher.
• Keeps Chams and entity outlines in separate command queues.
• Resets and closes the dedicated staged buffer with the renderer lifecycle.

Related issues

Closes #6748

How Has This Been Tested?

Tested locally with Minecraft 26.3, Meteor, Litematica, and MaLiLib, by enabling ESP;
the previous render-thread crash no longer occurs.

Checklist:

• My code follows the style guidelines of this project.
• I have added comments to my code in more complex areas.
• I have tested the code in both development and production environments.