git:20260813.c8addfe to git:20260814.76af98c

34 added, 0 removed. Audit B to A.

# 05 — 方块与物品 JSON
BP `minecraft:block` / `minecraft:item` + RP 纹理引用。identifier 必须 `namespace:name`。
+ ## Decision Flow
+
+ ```
+ → 方块教程 → stable/custom-block
+ → 方块组件名 → stable/block-components(表外禁止编 Java BlockBehaviour)
+ → 物品教程 → stable/custom-items
+ → 物品组件名 → stable/item-components
+ → 几何/材质 → RP(02)+ block-components 里的 geometry 等键,以 Learn 为准
+ ```
+
+ ## 已核实约束(Learn)
+
+ 方块(`stable/custom-block`):
+
+ ```json
+ {
+ "format_version": "1.21.80",
+ "minecraft:block": {
+ "description": { "identifier": "demo:die" },
+ "components": {}
+ }
+ }
+ ```
+
+ `description.identifier` 必须带命名空间。组件只从 `stable/block-components` 抄,例如已出现在该页的 `minecraft:collision_box`、`minecraft:geometry`、`minecraft:friction`、`minecraft:light_emission`、`minecraft:destructible_by_mining`、`minecraft:flammable`。标 Legacy / experimental / Upcoming-Creator-Features 的条目未点名实验不要用。
+
+ 物品:`minecraft:item` + `description.identifier`。组件只从 `stable/item-components` 抄,例如该页已有的 `minecraft:allow_off_hand`、`minecraft:block_placer`、`minecraft:can_destroy_in_creative`。`format_version` 随组件升高(Learn:trim ≥ 1.20.60,dyeable ≥ 1.21.30)。
+
+ JSON 校验:`validate_bp_json`。
+
+ ## 文档
+
+ `stable/custom-block`、`stable/block-components`、`stable/custom-items`、`stable/item-components`。
+