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/create-log.api.mdx

@@ -0,0 +1,66 @@
+---
+id: create-log
+title: "Create log"
+description: "Create log"
+sidebar_label: "Create log"
+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={"Create log"}
+>
+</Heading>
+
+<MethodEndpoint
+  method={"post"}
+  path={"/api/v1/log/"}
+  context={"endpoint"}
+>
+
+</MethodEndpoint>
+
+
+
+Create log
+
+<Heading
+  id={"request"}
+  as={"h2"}
+  className={"openapi-tabs__heading"}
+>
+  <Translate id="theme.openapi.request.title">Request</Translate>
+</Heading>
+
+<ParamsDetails>
+
+</ParamsDetails>
+
+<RequestSchema
+  {...require("./create-log.RequestSchema.json")}
+>
+
+</RequestSchema>
+
+<StatusCodes
+  {...require("./create-log.StatusCodes.json")}
+>
+
+</StatusCodes>