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/delete-security-resources-by-pk.api.mdx

@@ -0,0 +1,68 @@
+---
+id: delete-security-resources-by-pk
+title: "Delete security resources by pk"
+description: "Delete security resources by pk"
+sidebar_label: "Delete security resources by pk"
+hide_title: true
+hide_table_of_contents: true
+api: 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
+sidebar_class_name: "delete 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={"Delete security resources by pk"}
+>
+</Heading>
+
+<MethodEndpoint
+  method={"delete"}
+  path={"/api/v1/security/resources/{pk}"}
+  context={"endpoint"}
+>
+
+</MethodEndpoint>
+
+
+
+Delete security resources by pk
+
+<Heading
+  id={"request"}
+  as={"h2"}
+  className={"openapi-tabs__heading"}
+>
+  <Translate id="theme.openapi.request.title">Request</Translate>
+</Heading>
+
+<ParamsDetails
+  {...require("./delete-security-resources-by-pk.ParamsDetails.json")}
+>
+
+</ParamsDetails>
+
+<RequestSchema
+  {...require("./delete-security-resources-by-pk.RequestSchema.json")}
+>
+
+</RequestSchema>
+
+<StatusCodes
+  {...require("./delete-security-resources-by-pk.StatusCodes.json")}
+>
+
+</StatusCodes>