1.3.0+26.1.2

1.3.0

• Minecraft 26.1.2 support (Java 25).
• Modernize package and maven group: Java package net.rpg_foundation.structure_pool (was net.fabric_extras.structure_pool), maven group net.rpg_foundation (was net.foundation); mod id and data unchanged
• Spawn limits are now enforced for elements reached through a pool's fallback pool. They were silently uncapped before. This is seed-visible: filtering an element out of a candidate list changes what Util.shuffle returns, so an affected structure generates differently for the same seed. Only structures whose placement reaches an injected element via a fallback pool are affected.
• No longer ships an access widener (Fabric) / access transformer (NeoForge) — one fewer thing to conflict with.
• One fewer mixin: StructureTemplatePool is no longer mixed into at all (injected elements are now identified by instance identity), and all mixin-owned members are @Unique.
• injectIntoStructurePool is idempotent per pool instance: injecting the same structure into the same pool twice no longer doubles its weight, and warns instead.
• Injecting now invalidates the pool's memoised maxSize.
• The "structure pool not found" message goes to the mod logger instead of System.err, so a mistyped pool id in a config is visible in a filtered log.