fix(sdks): C++/C# demo 契约补齐——collection_query 函数不再落 action fallback

leaderboard 页发布失败（output source /items /total not found in
schema）根因链：六语言 demo 共享同一 (game,env,function_id) 契约
槽位，契约 last-writer-wins——C++/C# demo 的 schema 表只覆盖
player.*，其余函数落到 action 形状 fallback（{status,action}）；
C++ demo 重连注册时把 Go demo 写入的正确 collection schema
（items/total）覆盖成 action 形状，发布校验按被污染契约校验
selector 路径必然失败（DB 实证：15:19:47 契约被整体改写）。

修复（与 Go/Java/JS/Python demo 对齐——它们本就全覆盖）：
- C++ demo_schema_for 补 order.list/leaderboard.list/inventory.list/
  mail.list → items/total 形状
- C# SchemasFor 补同款（inventory.list 按其实际 wire 形态带
  playerId 输入）

Author: cuihairu

sdks/cpp/examples/game_demo.cpp

@@ -71,6 +71,14 @@ static std::pair<std::string, std::string> demo_schema_for(const std::string& id
     if (id == "player.update") return {player_fields_schema(true), player_out};
     if (id == "player.delete") return {id_required_in, "{\"type\":\"object\",\"properties\":{\"playerId\":" + std::string(SCHEMA_STR) + "}}"};
     if (id == "player.list") return {pagination_in, list_out};
+    // 其余 collection_query 函数：与 Go demo 契约对齐（items/total 形状）。
+    // 此前这些函数落到 action fallback（{status,action}），六语言 demo
+    // 共享同一契约槽位，C++ 注册会覆盖 Go 的正确 collection schema，
+    // 导致页面发布校验 "/items,/total not found" 失败。
+    if (id == "order.list") return {pagination_in, list_out};
+    if (id == "leaderboard.list") return {pagination_in, list_out};
+    if (id == "inventory.list") return {pagination_in, list_out};
+    if (id == "mail.list") return {pagination_in, list_out};
     return {};
 }
 

sdks/csharp/examples/GameDemo/Program.cs

@@ -436,6 +436,14 @@ static void EnrichDescriptor(FunctionDescriptor desc)
         "player.delete" => (BuildObj("{\"id\":" + SchemaStr + "}", new[] { "id" }), BuildObj("{\"playerId\":" + SchemaStr + "}")),
         "player.list" => (BuildObj("{\"page\":" + SchemaInt + ",\"pageSize\":" + SchemaInt + "}"),
                           BuildObj("{\"items\":{\"type\":\"array\",\"items\":" + SchemaObj + "},\"total\":" + SchemaInt + "}")),
+        // 其余 collection_query 函数与 Go demo 契约对齐（items/total）：
+        // 六语言共享同一契约槽位，action 形状 fallback 会覆盖正确
+        // collection schema，导致页面发布校验失败。
+        "order.list" or "leaderboard.list" or "mail.list"
+            => (BuildObj("{\"page\":" + SchemaInt + ",\"pageSize\":" + SchemaInt + "}"),
+                BuildObj("{\"items\":{\"type\":\"array\",\"items\":" + SchemaObj + "},\"total\":" + SchemaInt + "}")),
+        "inventory.list" => (BuildObj("{\"playerId\":" + SchemaStr + "}"),
+                BuildObj("{\"items\":{\"type\":\"array\",\"items\":" + SchemaObj + "},\"total\":" + SchemaInt + "}")),
         _ => (BuildObj("{}"), "{\"type\":\"object\",\"properties\":{\"status\":{\"type\":\"string\"},\"action\":{\"type\":\"string\"}}}"),
     };