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-a-chart-detail-information.api.mdx

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