Bedrock general movement

[Yomamaeatstoes]

Summary

Improves general movement compatibility for Bedrock/Geyser/Floodgate-style clients and modern server behavior, focusing on false positives outside the main SurvivalFly/elytra model work.

What Changed

• Improves Bedrock-aware movement handling in the moving listener path.
• Refines general movement state handling used by movement checks.
• Improves Passable and NoFall behavior around modern movement edge cases.
• Adjusts vehicle movement envelope handling to reduce false positives.
• Improves combat/block direction related compatibility paths that could false flag during normal interaction.
• Adds supporting movement utility changes used by the compatibility models.

Why

Bedrock clients and modern server movement timing can differ from legacy Java assumptions, especially around partial-block movement, combat/velocity, vehicles, and event ordering. These changes reduce normal-player false positives without putting the larger SurvivalFly/elytra model changes into this PR.

Notes

This is PR 4 in the stacked series.

Base branch: block-environment-foundations
Head branch: bedrock-general-movement

This PR intentionally does not include the large SurvivalFly/elytra model changes. Those are isolated in the next stacked PR.