MultiblockEngine

Breaking changes:

• Refactored service implementations and extracted core tool contracts (ToolModeExecutionService, ToolModeMetricsService, ToolSessionService) into the public API (dev.darkblade.mbe.api.tool.*).
• Relocated UIRuntimeRegistry to dev.darkblade.mbe.api.ui.runtime and updated UI service implementation references across core and addon modules.

Internal changes:

• Introduced AddonContext#registerMultiblockDirectory allowing addons to dynamically inject custom multiblock directory paths into the core structure catalog.
• Added PanelDirectoryRegistry and PanelMappingRegistry to dev.darkblade.mbe.api.ui for dynamic panel directory management and mapping resolution.
• Enhanced structure preview and blueprint placement system with Rotation support, DisplayEntityRenderer updates, PreviewPlacementController controls, and PacketEventsRendererBridge integration.
• Refactored PdcItemStackBridge for improved item persistent data container (PDC) operations.
• Added CodeMC Maven repositories (maven-releases and maven-snapshots) to the root build configuration.
• Standardized project documentation, agent skills, and AGENTS.md to English.

Bug fixes:

• Fixed a premature dependency check execution in AddonRuntimeLifecycleService during addon initialization.
• Resolved API dependency resolution across subprojects by enforcing project-level dependency references.

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Changes made by: @DarkBladeDev

Full Changelog: 4.8.5...4.9.1