Mob Conduit

A full audit, seven bug fixes, and a feature pass grounded in what players ask for from spawn-proofing mods.

New features:

• Suppression feedback: an action-bar ping (or particle puff) when the conduit eats a spawn. suppression_feedback: off, actionbar (default), particle.
• /mobconduit visualize: draws each conduit's coverage volume in particles for 10 seconds.
• radius_shape: sphere (default) or cylinder (same horizontal radius, full height).
• Status hologram: floating "Mob Conduit / radius N" text above the crystal — a vanilla text_display, nothing registered. hologram: false disables it.
• disabled_dimensions: dimension ids where conduits do nothing.
• suppress_exempt_types: mobs the conduit leaves entirely alone.

Behavior changes:

• Neutral mobs are no longer suppressed: endermen and zombified piglins spawn and persist inside the radius; spiders and piglins stay suppressed.
• Long-range effects (aura, beam, visualize) are sent with the server's overrideLimiter flag, so they render past 32 blocks.

Bug fixes:

• frame_block changes now fully tear down invalidated conduits (obsidian restored, rebuilds re-arm).
• frame_block: minecraft:air is rejected instead of activating every crystal for free.
• Erasure lights no longer strand on chunk unload; light placement can no longer sync-load a chunk.
• Teleported crystals deactivate the conduit they leave behind; reload drops crystal-less conduits.
• Fixed a per-tick drain that stayed hot after the last conduit deactivated, a visualizer leak across world restarts, and a sidebar leak across integrated-server worlds.

Server-side only; vanilla clients need nothing. Minecraft 26.2, Fabric Loader 0.19.3+, Fabric API 0.156.0+26.2, Java 25.