合并 origin/master：保留 3D 契约与 provider checkpoint，旧玩法表随主线退役

- server-rs/crates/shared-contracts/src/lib.rs：采用主线的模块裁剪（删掉 cfg(any()) 遗留模块、补上 agc_analytics 与 game_distribution），同时保留本分支的 editor_canvas、model3d 模块与 EDITOR_GENERATION_OPERATION_KINDS 导出
- server-rs/crates/spacetime-module/src/migration.rs：主线删除的 410 行旧玩法表 normalize 段保持删除，保留本分支的 provider_kind / provider_task_id 兼容段与对应用例
- docs/【开发运维】本地开发验证与生产运维-2026-05-15.md：校验清单同时保留 Tripo 3D 生成任务与 editor_background_music_generation / model3d_text_to_model / model3d_image_to_model
- .gitignore：补回本分支新增的 3D 模型文件忽略规则（*.glb / *.gltf 等 12 行），压测数据段随主线一并删除
- 共享记忆：本分支的 3D 决策与踩坑条目保留在主线重排后的 decision-log.md 与 pitfalls.md 中

server-rs/Cargo.lock

@@ -217,6 +217,7 @@ dependencies = [
  "module-assets",
  "module-auth",
  "module-editor-agent",
+ "module-game-distribution",
  "module-runtime",
  "opentelemetry",
  "platform-audio",
@@ -2899,15 +2900,29 @@ dependencies = [
  "spacetimedb",
 ]
 
+[[package]]
+name = "module-game-distribution"
+version = "0.1.0"
+dependencies = [
+ "hex",
+ "serde",
+ "sha2",
+ "shared-kernel",
+ "zip",
+]
+
 [[package]]
 name = "module-runtime"
 version = "0.1.0"
 dependencies = [
  "serde",
  "serde_json",
+ "shared-contracts",
  "shared-kernel",
  "spacetimedb",
  "time",
+ "url",
+ "uuid",
 ]
 
 [[package]]