文档: 设计文档入库与构建配套收尾

- 云化两设计文档入库(devflow-core 抽取三步收口/云化架构 html)
- 看板销账: T1-T4 逐件附验收
- D4 工具 schema 空 description 清理(渐进披露配套,~10KB/轮)
- 换装脚本验证修复: 安装后装机 exe 版本核对,防 NSIS 静默失败误报成功
- capabilities/锁文件随批

crates/df-ai/src/ai_tools.rs

@@ -488,10 +488,7 @@ pub fn object_schema(properties: Vec<(&str, &str, bool)>) -> Value {
     let mut required = Vec::new();
 
     for (name, type_str, is_required) in properties {
-        props.insert(
-            name.to_string(),
-            serde_json::json!({ "type": type_str, "description": "" }),
-        );
+        props.insert(name.to_string(), serde_json::json!({ "type": type_str }));
         if is_required {
             required.push(name.to_string());
         }
@@ -579,6 +576,9 @@ mod tests {
         let schema = object_schema(vec![("name", "string", true), ("age", "integer", false)]);
         assert_eq!(schema["type"], "object");
         assert_eq!(schema["properties"]["name"]["type"], "string");
+        // 空属性描述不落盘:序列化输出不含 "description" 键(省 LLM 请求白携带)
+        let serialized = serde_json::to_string(&schema).unwrap();
+        assert!(!serialized.contains("description"));
         let required = schema["required"].as_array().unwrap();
         assert_eq!(required.len(), 1);
         assert_eq!(required[0], "name");