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-permissions.api.mdx

@@ -0,0 +1,68 @@
+---
+id: get-security-permissions
+title: "Get security permissions"
+description: "Get a list of models"
+sidebar_label: "Get security permissions"
+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 permissions"}
+>
+</Heading>
+
+<MethodEndpoint
+  method={"get"}
+  path={"/api/v1/security/permissions/"}
+  context={"endpoint"}
+>
+
+</MethodEndpoint>
+
+
+
+Get a list of models
+
+<Heading
+  id={"request"}
+  as={"h2"}
+  className={"openapi-tabs__heading"}
+>
+  <Translate id="theme.openapi.request.title">Request</Translate>
+</Heading>
+
+<ParamsDetails
+  {...require("./get-security-permissions.ParamsDetails.json")}
+>
+
+</ParamsDetails>
+
+<RequestSchema
+  {...require("./get-security-permissions.RequestSchema.json")}
+>
+
+</RequestSchema>
+
+<StatusCodes
+  {...require("./get-security-permissions.StatusCodes.json")}
+>
+
+</StatusCodes>