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Refresh conditional setting visibility for module and HUD settings

This makes conditional setting visibility updates systemic instead of value-only.

Backend setting-change broadcasts now include a full visibility map for the affected module/HUD element.

Frontend stores apply that visibility map on each setting update, so dependent controls refresh immediately when parent modes/options change.

This fixes stale UI for mode-dependent settings (NoFall was just one visible symptom) across Meteor and addon modules.

Update to 1.21.11

chore: Bump version to 0.3.0

Updated version across the project:
- gradle/libs.versions.toml: mod-version 0.2.0 → 0.3.0
- webui/package.json: version 0.2.0 → 0.3.0

Add minecraft-fabric-dev skill for Fabric mod development.

v0.2.0

refactor: Migrate to Gradle version catalog