Bank Vault

Catalog completeness release. Every cell rebuilt: the vault catalog is shared across all cells, so the classification work below applies product-wide, not just to 26.3.

Added

• The 48 items Minecraft 26.3-snapshot-7 introduced are now classified, not dumped in Uncategorized. 32 concrete slabs + stairs (all 16 dye colours) -> Colored Blocks, ranked directly beside the concrete they are cut from. 16 new per-target map items -- ancient_city_map, buried_treasure_map, the six *_village_maps, the explorer maps and the rest, which Mojang split out of filled_map -> Materials & Utility, ranked beside filled_map.
• The pre-existing classification backlog is closed too. 16 cushions and straw_bed -> Fabric & Color; the 7 infested blocks -> Stone & Masonry, each beside its base block; player_head -> Magic & Treasure with the other mob heads. 73 items classified in total, with keyword-search entries for the 48 new ids.
• The remaining 21 net-new registry ids are creative/technical only (command blocks, jigsaw, structure/test blocks, spawners, bedrock, budding_amethyst, suspicious_sand, spawn eggs, ...) and are deliberately excluded from the vault, consistent with how barrier and the spawn eggs have always been treated. They are now recorded as such in the taxonomy, so the "needs classification" list is empty and stays empty instead of re-surfacing every version.

Fixed

• A new Minecraft version used to add its items to the vault as storable-but-Uncategorized. Nothing reported this: the load-time log prints the catalog's own item count, which does not change when the registry grows, so the gap read as healthy. Catalog completeness is now an explicit release gate -- tooling/bv_new_items.py must return zero before a version ships.