添加完整项目文件

包含Go API项目的所有源代码、配置文件、Docker配置、文档和前端资源

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

common/json.go

@@ -0,0 +1,22 @@
+package common
+
+import (
+	"bytes"
+	"encoding/json"
+)
+
+func Unmarshal(data []byte, v any) error {
+	return json.Unmarshal(data, v)
+}
+
+func UnmarshalJsonStr(data string, v any) error {
+	return json.Unmarshal(StringToByteSlice(data), v)
+}
+
+func DecodeJson(reader *bytes.Reader, v any) error {
+	return json.NewDecoder(reader).Decode(v)
+}
+
+func Marshal(v any) ([]byte, error) {
+	return json.Marshal(v)
+}