feat: release managed service generation and contract diagnostics

examples/managedService/internal/logic/demo/check.go

@@ -0,0 +1,20 @@
+package demo
+
+import (
+	"context"
+	"errors"
+	"example.com/managed/internal/types"
+	omnierrors "git.yuntuo.hk/k2safe/go-omni/errors"
+)
+
+func (l *Logic) Check(ctx context.Context, req *types.CheckReq) (*types.Receipt, error) {
+	switch req.Kind {
+	case "fixed":
+		return nil, omnierrors.ByCode("INVALID")
+	case "params":
+		return nil, omnierrors.ByCode("TOO_LONG").WithParams(map[string]any{"label": "企业名称", "max": 100})
+	case "unknown":
+		return nil, omnierrors.ByCode("UNKNOWN").WithCause(errors.New("private cause"))
+	}
+	return &types.Receipt{Bytes: 42}, nil
+}