Mekanism: Mekacrafter

**⚠️ Update server and clients together: the network protocol changed (v3). Old worlds load fine.** ### Fixed * **Item duplication on chunk unload**: reserved materials were refunded twice if a chunk unloaded mid-craft. * Machines bound to a private QIO frequency can no longer be used, rebound or drained by other players (Mekanism PUBLIC/TRUSTED/PRIVATE security is now enforced). * A failed job no longer stalls the rest of the queue. * Completed and cancelled jobs are removed from the queue automatically; the job history can no longer cause a false "queue full". * "Clear list" in the missing-materials view now actually clears it. * Craftable search results no longer leak between worlds/servers after switching or "/reload". * Cancelling a job now also stops its background planning computation. ### Added / Changed * **Redesigned GUI**: wider window, single action row, live status in the activity bar. * **New "Missing Materials" side panel** (toggled by the Missing button): item icon, name, missing amount and live availability — red/orange/green as you restock the QIO. * Identical duplicate requests are rejected while one is already queued. * If the QIO changes between planning and reservation (other players/machines), the job re-plans automatically instead of failing.