Port Forge support from Minecraft 26.1 to 26.2

[Gordonynh]

Summary

• base the port on the upstream 26.1 branch
• update the Minecraft target from 26.1.2 to 26.2 and Forge from 64.0.11 to 65.0.3
• adapt tuple usage, dyed block registries, client GUI access, mixins, and rendering calls to the 26.2 API
• keep the upstream 26.1 Elytra changes and Nether pathfinder 1.6 integration

Current limitation

Minecraft 26.2 removed immediate RenderType.draw submission. Baritone still builds path and goal vertices, but overlay submission is disabled until it is integrated with the new render graph. Core pathing and command behavior remain available.

Verification

• JAVA_HOME=$(brew --prefix openjdk@25)/libexec/openjdk.jdk/Contents/Home ./gradlew test build
• Forge remap, tests, ProGuard, and distribution tasks completed successfully

[Gordonynh]

Codacy appears to be failing internally rather than reporting a code issue. Its public analysis API reports zero issues, while the analysis log shows Preparing Source Code: success, followed by Diff: error and Deltas: error. The same Diff/Deltas failure currently affects the other open PRs targeting 1.21.11 (including #5074, #5062, #5061, #5042, and #4990), whereas checks on PRs targeting 1.19.4 complete normally.

The commit graph for this PR is intact (7506445 directly parents the current 1.21.11 head, 775f4ca). This likely needs a Codacy re-run/configuration fix or a maintainer bypass rather than a source change.