docs: cut 6.1.0 versions for docs, admin_docs, developer_docs, components

- Snapshot all four versioned docs sections at v6.1.0; master continues to
  serve as "Next" (lastVersion: current, banner: unreleased) so editing
  master keeps updating the canonical URLs
- Enable the previously-disabled components plugin and version it
- Rename stale "developer_portal" references to "developer_docs" across
  package.json scripts, manage-versions.mjs, theme files (DocVersionBadge,
  DocVersionBanner), DOCS_CLAUDE.md, and README.md (URL backward-compat
  redirect /developer_portal/* preserved)
- Add admin_docs version scripts; drop dead "tutorials" plugin id from
  the version badge
- Generalize fixVersionedImports in manage-versions.mjs to walk every
  section's snapshot and rewrite ../../src/ and ../../data/ imports,
  catching admin_docs and components files that previous version cuts
  would have broken
- Remove orphan files: developer_portal_versions.json,
  tutorials_versions.json, and stray empty versions.json files inside
  components/ and developer_docs/ content directories

docs/developer_docs_versioned_docs/version-6.1.0/api/get-a-guest-token.api.mdx

@@ -0,0 +1,68 @@
+---
+id: get-a-guest-token
+title: "Get a guest token"
+description: "Get a guest token"
+sidebar_label: "Get a guest token"
+hide_title: true
+hide_table_of_contents: true
+api: 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
+sidebar_class_name: "post api-method"
+info_path: developer-docs/api/superset
+custom_edit_url: null
+hide_send_button: true
+show_extensions: true
+---
+
+import MethodEndpoint from "@theme/ApiExplorer/MethodEndpoint";
+import ParamsDetails from "@theme/ParamsDetails";
+import RequestSchema from "@theme/RequestSchema";
+import StatusCodes from "@theme/StatusCodes";
+import OperationTabs from "@theme/OperationTabs";
+import TabItem from "@theme/TabItem";
+import Heading from "@theme/Heading";
+import Translate from "@docusaurus/Translate";
+
+<Heading
+  as={"h1"}
+  className={"openapi__heading"}
+  children={"Get a guest token"}
+>
+</Heading>
+
+<MethodEndpoint
+  method={"post"}
+  path={"/api/v1/security/guest_token/"}
+  context={"endpoint"}
+>
+
+</MethodEndpoint>
+
+
+
+Get a guest token
+
+<Heading
+  id={"request"}
+  as={"h2"}
+  className={"openapi-tabs__heading"}
+>
+  <Translate id="theme.openapi.request.title">Request</Translate>
+</Heading>
+
+<ParamsDetails
+  parameters={undefined}
+>
+
+</ParamsDetails>
+
+<RequestSchema
+  {...require("./get-a-guest-token.RequestSchema.json")}
+>
+
+</RequestSchema>
+
+<StatusCodes
+  {...require("./get-a-guest-token.StatusCodes.json")}
+>
+
+</StatusCodes>