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/delete-a-saved-query.api.mdx

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