replace log.Fatal/os.Exit with error returns (#941)

* Use stdlib encoders
* Reduce some duplication
* Remove global pagination state
* Dedupe JSON detail types
* Bump golangci-lint

Reviewed-on: https://gitea.com/gitea/tea/pulls/941
Co-authored-by: techknowlogick <techknowlogick@gitea.com>
Co-committed-by: techknowlogick <techknowlogick@gitea.com>

modules/print/repo_test.go

@@ -0,0 +1,33 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package print
+
+import (
+	"bytes"
+	"encoding/json"
+	"testing"
+
+	"code.gitea.io/sdk/gitea"
+	"github.com/stretchr/testify/require"
+)
+
+func TestReposListUsesNumericIDField(t *testing.T) {
+	repos := []*gitea.Repository{{
+		ID:   123,
+		Name: "tea",
+		Owner: &gitea.User{
+			UserName: "gitea",
+		},
+	}}
+
+	buf := &bytes.Buffer{}
+	tbl := tableFromItems([]string{"id", "name"}, []printable{&printableRepo{repos[0]}}, true)
+	require.NoError(t, tbl.fprint(buf, "json"))
+
+	var result []map[string]string
+	require.NoError(t, json.Unmarshal(buf.Bytes(), &result))
+	require.Len(t, result, 1)
+	require.Equal(t, "123", result[0]["id"])
+	require.Equal(t, "tea", result[0]["name"])
+}