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

Snapshots all four versioned Docusaurus sections at v6.1.0. Built on
top of the version-cutting tooling work in chore/docs-cut-6.1.0-versions
so the snapshot benefits from:

- Auto-gen refresh before snapshotting (database pages from engine
  spec metadata, API reference from openapi.json, component pages
  from Storybook stories) — captured at the SHA we cut from rather
  than whatever happened to be on disk.
- Data-import freeze: country list, feature flag table, database
  diagnostics, and component metadata are copied into snapshot-local
  `_versioned_data/` dirs so the historical version doesn't silently
  mutate when the source files change.
- Depth-aware import-path rewriter that handles deeply-nested
  component MDX files referencing `../../../src/` from the snapshot.

Versioning behavior: `lastVersion` stays at `current` for every
section, so the canonical URLs (`/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. The plugin block in docusaurus.config.ts
was already gated only by the `disabled` flag, so no other code
changes were needed to bring it back online.

The frozen `databases.json` in the snapshot is the canonical 80-database
artifact from the latest committed state in master (preserved by the
generator's input-hash cache), not a fallback regenerated from a
local Flask environment.

docs/developer_docs_versioned_docs/version-6.1.0/api/get-a-saved-query.api.mdx

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