feat(issue): 新增 issue +comments 读评论流（journals 分页 + --all，对标 gh issue view --comments）

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

doc/changes/list-all-pagination.md

@@ -22,6 +22,7 @@
   - `milestone +list --all`、`org +list --all`、`repo +list --all`
   - `search +repos --all`、`search +users --all`
   - `label +list --all`、`member +list --all`、`webhook +list --all`
+  - `issue +comments --all`（新增子命令，见下）
   - 对应资源键：`issues`/`pulls`/`branches`/`releases`/`milestones`/
     `organizations`/`projects`/`users`/`issue_tags`/`collaborators`/`webhooks`
     （均生产实测确认）
@@ -33,6 +34,11 @@
     `/v1/:owner/:repo/collaborators`（支持分页且普通成员可读）；
   - `webhook +list` 完全没有 `--page/--limit`（探针实测：建 3 个 webhook 后
     `page=2&limit=1` 返回第二条，确认端点分页），现已补齐。
+- 新增 `issue +comments` 子命令（对标 `gh issue view --comments`）：
+  此前 CLI 只能发评论（`issue +comment`）无法读评论流，Agent 无法获取
+  issue 讨论上下文；现接 `/v1/:owner/:repo/issues/:number/journals`
+  （资源键 `journals`，生产实测分页 + --all 合并通过），
+  复用 --number/--id 语义。
 - 未加 `--all` 的 list 端点均经生产验证为非分页或未部署：
   `licenses`/`ignores` 返回全量数组；`pm/pipelines` 404 未部署；
   `pipeline +runs` 用 `total_data` 非标准包裹；dataset 端点未部署（平台 issue #144255）。

internal/i18n/locales/en-US.json

@@ -42,6 +42,7 @@
   "cmd.issue.batch_list.short": "List issue batch maintenance candidates without changing remote data",
   "cmd.issue.close.short": "Close an issue",
   "cmd.issue.comment.short": "Add a comment to an issue",
+  "cmd.issue.comments.short": "List comments on an issue",
   "cmd.issue.create.short": "Create a new issue",
   "cmd.issue.list.short": "List issues",
   "cmd.issue.short": "Issue operations",

internal/i18n/locales/zh-CN.json

@@ -42,6 +42,7 @@
   "cmd.issue.batch_list.short": "列出议题批量维护候选项，不修改远端数据",
   "cmd.issue.close.short": "关闭议题",
   "cmd.issue.comment.short": "给议题添加评论",
+  "cmd.issue.comments.short": "列出 Issue 的评论",
   "cmd.issue.create.short": "创建新议题",
   "cmd.issue.list.short": "列出议题",
   "cmd.issue.short": "议题操作",

shortcuts/issue/issue.go

@@ -307,6 +307,40 @@ func Shortcuts(translators ...*i18n.Translator) []*common.Shortcut {
 				return ctx.Output(env)
 			},
 		},
+		{
+			Name:        "comments",
+			Description: tr.T("cmd.issue.comments.short"),
+			Flags: appendIssueNumberFlags(
+				common.Flag{Name: "page", Short: "p", Usage: tr.T("flag.page"), Default: "1"},
+				common.Flag{Name: "limit", Short: "l", Usage: tr.T("flag.limit"), Default: "20"},
+				common.Flag{Name: "all", Usage: tr.T("flag.all"), Bool: true, Default: "false"},
+			),
+			Run: func(ctx *common.RuntimeContext) error {
+				if err := ctx.ResolveOwnerRepo(); err != nil {
+					return err
+				}
+				number, err := issueNumberArg(ctx)
+				if err != nil {
+					return err
+				}
+				path := fmt.Sprintf("%s/issues/%s/journals", v1RepoPath(ctx), number)
+				q := url.Values{}
+				q.Set("page", ctx.Arg("page"))
+				q.Set("limit", ctx.Arg("limit"))
+				if ctx.Arg("all") == "true" {
+					items, err := ctx.PaginateAllKey(path, q, "journals")
+					if err != nil {
+						return err
+					}
+					return ctx.Output(common.NewListEnvelope("journals", items))
+				}
+				env, err := ctx.CallAPIWithQuery("GET", path, q)
+				if err != nil {
+					return err
+				}
+				return ctx.Output(env)
+			},
+		},
 		{
 			Name:        "assigners",
 			Description: "List issue assigners",