feat: generate the gt command reference from gitea/cli

update_cli_docs.sh runs gt's own generator and lays the pages out for the
site: one directory per command group, front matter, titles, sidebar
order, fenced help text and rewritten links. --released succeeds while no
series is documented. A weekly workflow proposes updates like the runner's.

Signed-off-by: bircni <[email protected]>

cli-docs/reference/issue/attachment/index.md

@@ -0,0 +1,54 @@
+---
+sidebar_position: 1
+description: "Manage the attachments of issues"
+---
+
+# gt issue attachment
+
+<!-- Generated by update_cli_docs.sh from the gitea/cli sources, do not edit. -->
+
+Manage the attachments of issues
+
+## Synopsis
+
+```text
+List, view, upload, download, rename and delete the files attached to an issue. Attachments
+are addressed by the issue number and the attachment ID that attachment list shows.
+```
+
+```
+gt issue attachment [flags]
+```
+
+## Options
+
+```
+  -h, --help   help for attachment
+```
+
+## Options inherited from parent commands
+
+```
+      --cwd directory       Working directory for repository discovery
+      --debug               Log the method, URL, status, and duration of each HTTP request to stderr
+      --host URL            Gitea instance URL, including any base path
+      --interactive         Allow prompts with machine output
+  -q, --jq expression       Filter JSON output using a jq expression; implies --json
+      --json fields[="*"]   Output JSON with the specified comma-separated fields, or all fields
+      --no-input            Disable prompts and implicit editor/browser interactions
+      --remote remote       Git remote used for repository discovery
+  -R, --repo OWNER/REPO     Select a repository as OWNER/REPO or URL
+      --sudo user           Perform API requests as this user (requires an administrator account)
+      --user name           Account name on the selected instance
+  -y, --yes                 Accept confirmations without prompting
+```
+
+## SEE ALSO
+
+* [gt issue](../../issue/index.md): Manage issues
+* [gt issue attachment delete](../../issue/attachment/delete.md): Delete an attachment
+* [gt issue attachment download](../../issue/attachment/download.md): Download an attachment
+* [gt issue attachment edit](../../issue/attachment/edit.md): Rename an attachment
+* [gt issue attachment list](../../issue/attachment/list.md): List attachments
+* [gt issue attachment upload](../../issue/attachment/upload.md): Attach a file
+* [gt issue attachment view](../../issue/attachment/view.md): View an attachment