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

Snapshots all four versioned Docusaurus sections at v6.1.0, cut from
master after the version-cutting tooling (#39837), broken-internal-
links fix (#40102), and user_docs rename (#40171) all landed. With
the rename in place, all four sections now produce parallel-named
files at the docs/ root (no more bare `versioned_docs/` outlier).

Versioning behavior: lastVersion stays at current for every section,
so the canonical URLs (/user-docs/..., /admin-docs/...,
/developer-docs/..., /components/...) continue to render content
from master. The current version is consistently labeled "Next"
with an unreleased banner, and 6.1.0 is a historical pin accessible
only via its explicit version segment.

Component playground: previously disabled: true in versions-config.json,
now enabled and versioned.

Snapshot includes:
- All MDX content for the four sections.
- Auto-gen captured fresh: 74 database pages (engine spec metadata),
  ~1,800 API reference files (openapi.json), 59 component pages
  (Storybook stories).
- Data imports frozen at cut time into snapshot-local _versioned_data/
  dirs:
    user_docs_versioned_docs/version-6.1.0/_versioned_data/src/data/databases.json
      (canonical 80-database diagnostics from master, preserved by the
      generator's input-hash cache)
    admin_docs_versioned_docs/version-6.1.0/_versioned_data/data/countries.json
    admin_docs_versioned_docs/version-6.1.0/_versioned_data/static/feature-flags.json
    developer_docs_versioned_docs/version-6.1.0/_versioned_data/static/data/components.json
- Import paths in deeply-nested files rewritten so they still resolve
  from one directory deeper inside the snapshot.
- developer_docs/extensions/overview.md snapshot has the FIXED
  ./mcp.md form (from #40102), so the SPA-nav 404 isn't baked into
  the 6.1.0 version.

Verified via full yarn build: exit 0, no broken links surfaced by
onBrokenLinks: throw.

docs/developer_docs_versioned_docs/version-6.1.0/api/get-security-users-info.api.mdx

@@ -0,0 +1,68 @@
+---
+id: get-security-users-info
+title: "Get security users  info"
+description: "Get metadata information about this API resource"
+sidebar_label: "Get security users  info"
+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 security users  info"}
+>
+</Heading>
+
+<MethodEndpoint
+  method={"get"}
+  path={"/api/v1/security/users/_info"}
+  context={"endpoint"}
+>
+
+</MethodEndpoint>
+
+
+
+Get metadata information about this API resource
+
+<Heading
+  id={"request"}
+  as={"h2"}
+  className={"openapi-tabs__heading"}
+>
+  <Translate id="theme.openapi.request.title">Request</Translate>
+</Heading>
+
+<ParamsDetails
+  {...require("./get-security-users-info.ParamsDetails.json")}
+>
+
+</ParamsDetails>
+
+<RequestSchema
+  {...require("./get-security-users-info.RequestSchema.json")}
+>
+
+</RequestSchema>
+
+<StatusCodes
+  {...require("./get-security-users-info.StatusCodes.json")}
+>
+
+</StatusCodes>