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-an-rls.api.mdx

@@ -0,0 +1,68 @@
+---
+id: get-an-rls
+title: "Get an RLS"
+description: "Get an item model"
+sidebar_label: "Get an RLS"
+hide_title: true
+hide_table_of_contents: true
+api: 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
+sidebar_class_name: "get 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 an RLS"}
+>
+</Heading>
+
+<MethodEndpoint
+  method={"get"}
+  path={"/api/v1/rowlevelsecurity/{pk}"}
+  context={"endpoint"}
+>
+
+</MethodEndpoint>
+
+
+
+Get an item model
+
+<Heading
+  id={"request"}
+  as={"h2"}
+  className={"openapi-tabs__heading"}
+>
+  <Translate id="theme.openapi.request.title">Request</Translate>
+</Heading>
+
+<ParamsDetails
+  {...require("./get-an-rls.ParamsDetails.json")}
+>
+
+</ParamsDetails>
+
+<RequestSchema
+  {...require("./get-an-rls.RequestSchema.json")}
+>
+
+</RequestSchema>
+
+<StatusCodes
+  {...require("./get-an-rls.StatusCodes.json")}
+>
+
+</StatusCodes>