Tracking: Minecraft Bedrock UI Diagnostics & Project Provider Support

[DaanV2]

Overview

This issue tracks implementing diagnostics, project provider, and language server support for resource pack UI definitions in Minecraft Bedrock.

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Motivation

• The language server currently does NOT validate, lint, or offer diagnostics for any files in resource_pack/ui/*, even though these power most custom screens and modded menus.
• Users are flying blind for JSON errors, misspelled UI types, broken @ inheritance, missing bindings, or misplaced variables.

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Task Breakdown

Prerequisites

• Add Mojang/bedrock-samples as a submodule for real UI corpus and live testing

Diagnostics Engine

• Add FileType.ui detection/parsing to project provider and dispatcher
• Integrate UI schema validation from Blockception/Minecraft-bedrock-json-schemas

Project Provider Extensions

Testing

• Use files from Mojang/bedrock-samples as test fixtures for UI diagnostics and project provider

Documentation

• Add new UI diagnostic details to extension/help docs

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Links

• Reference UI files: Mojang/bedrock-samples/resource_pack/ui
• Schema tracking: [Blockception/Minecraft-bedrock-json-schemas#ui-tracking] (link TBD)

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This tracking issue is the primary place for discussion and coordination for language server UI support. Please post PRs, blockers, and ideas here.