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

- Snapshot all four versioned docs sections at v6.1.0; master continues to
  serve as "Next" (lastVersion: current, banner: unreleased) so editing
  master keeps updating the canonical URLs
- Enable the previously-disabled components plugin and version it
- Rename stale "developer_portal" references to "developer_docs" across
  package.json scripts, manage-versions.mjs, theme files (DocVersionBadge,
  DocVersionBanner), DOCS_CLAUDE.md, and README.md (URL backward-compat
  redirect /developer_portal/* preserved)
- Add admin_docs version scripts; drop dead "tutorials" plugin id from
  the version badge
- Generalize fixVersionedImports in manage-versions.mjs to walk every
  section's snapshot and rewrite ../../src/ and ../../data/ imports,
  catching admin_docs and components files that previous version cuts
  would have broken
- Remove orphan files: developer_portal_versions.json,
  tutorials_versions.json, and stray empty versions.json files inside
  components/ and developer_docs/ content directories

docs/developer_docs_versioned_docs/version-6.1.0/api/create-a-new-form-data.api.mdx

@@ -0,0 +1,68 @@
+---
+id: create-a-new-form-data
+title: "Create a new form_data"
+description: "Create a new form_data"
+sidebar_label: "Create a new form_data"
+hide_title: true
+hide_table_of_contents: true
+api: eJzFV21v2zYQ/iuHw4AmmBInxQoULPohSVM0XdEGtbsNiIKUls6RWolUScqJJ+i/D0fKsvwSrGsG9EtikffC57kXHhuspJElOTIWxVWDuUKB32oyC4xQyZJQoJPTmzzFCG2SUSlRNOgWFe/kytEtGWzb6wgNfavJulOdLlgk0cqRcvxTVlWRJ9LlWo2+WK14bWWrMroi43KyXi2TxrE70WBKNjF5xXoocJIR+F24eIXR1hEiTKWTVtcmoQf1VyLfYSRs/osZLxQhqbpEccVcFfztJchh1JNp5ZzSm+XXPKc7vO4PYJ3J1S37n2lT3rD2tucTtfDuQM/g7fjDe7B1VWnjKAVH9+4Qt8y1ISq5oZQPt07QNtah99XZ9PQLJYzE5a7ghdfalK+kk5faunEIYxsh3cuyKmg9hsdbUTneQXHP2gD8CsMaCGdq8gu20sqGlHl6dPyIhPtKi91B/koLcBoMOZPTnMBlBP0Bd5O9ztg6Kd7PGqptl715uJMWrNOGUrB1kpC1s7ooFods9Lejo0fgLclaeUuDKv5OAL0insoUumoXcKHmsshTWDUSqIye5ymlu2AOdAOWx8Tuf8DyScnaZdrkf1Mq4KR2GSnX+Yc+73YAGSp6JE+f/mwkldGcKVxMwCjcQsAfHJyAhozRZheUM10XKSjtoLPQabOrZz872S6UI6NkAZbMnExAIeBEQa3ovqKE+59fBJ0ktXkgXK+lk0VPQYSWktowRr71vtw5FFfXfIs5ecs3IZ7fV4U2BNzs4FXXEe8PEp3S2J8y3JeFVLcoMPn08R1GWMgpFavP0OT4uzYFHPwFlx/GE4gxc64So1GhE1lk2jrx/Oj585Gs8tH8eETB8ajvBTFCHMcK4OANxHjSJZ3nX8ApSUMGfjk5Ozsfj28mH34/f7+ucBYidzBZVCRgM3gr2RSeNDF3qRgFxDiXRU0xtk+wjXqYlwuXaTUA2i/0UPOSr6RlidtYxWrZrOFlv3xYaev22C/8AB9RUMxIpmTsy2aDlQCgYyZG+BWk76A3Tn8l1XbajP7lLsSx2o9VZXLl9pYnP2Thvf39IRdv5VyOfYIN+FhbXIVfK8uU9DTIO5k7mJFLMk/CD1LQBCQluUynDIHza5MesRSDzexh2J+XCdQEjiaeos/RSmWYP4Go7RwK0ktmpzpdCD+hHIZqz2eLvYbv0wHN0O6zNLP9IlaBIX/zLdnZ4L4T0gUdFvp2j0X3XyBX7EYvMyQdgQRFd6v7FCMMLKFATj2MsJIuQ4EPcswB9B0nFHptOL47w4SbZ3jH25DSnApdlaRc17t8+gRDTWW004kuWjEaNWyqFQ1XTrtl7ay2TpdLExHOpcm5xduu3XozYYSZybpw3TEHQ2n3yf8sbjH2ZjK5hN5OGyGfZt1ej3frcOPQlHmPXwugDVxcshHGsm5kJ1Wdvpdu/TNi2Zj9ZBlA+vbc4NSnKjdkyfbe/jlZvkm4yMLuaizzoNuIlW8MzQzZ7EeNsBWr1cfVA+d817B7tDXsHv3XYTfCXM309jw6risy4T2xnMIHS5ykQW5+HLi3rpT+Yu6ecA9WxZqb/pLm58SoKmSu2JzP2KYrmCuUVc4+jznBQtFsPhxCAl1h00ylpU+maFteDm8fLqY090NKimImC0tRNxz3D03fI1Cgr+9lvvsbOsLQ1ryZoDVsUAPdrTGFiy9onCQJ+Q79sOz1oGFwV8UIp93DttQp6xh5h5H/KxAj1J5Dn65+LdwTdZhhgk3OI54ZB0T3+db9YFTdllSLwQmbJkiE/sxNoqOMv7G9btv2H+1hcSk=
+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 a new form_data"}
+>
+</Heading>
+
+<MethodEndpoint
+  method={"post"}
+  path={"/api/v1/explore/form_data"}
+  context={"endpoint"}
+>
+
+</MethodEndpoint>
+
+
+
+Create a new form_data
+
+<Heading
+  id={"request"}
+  as={"h2"}
+  className={"openapi-tabs__heading"}
+>
+  <Translate id="theme.openapi.request.title">Request</Translate>
+</Heading>
+
+<ParamsDetails
+  {...require("./create-a-new-form-data.ParamsDetails.json")}
+>
+
+</ParamsDetails>
+
+<RequestSchema
+  {...require("./create-a-new-form-data.RequestSchema.json")}
+>
+
+</RequestSchema>
+
+<StatusCodes
+  {...require("./create-a-new-form-data.StatusCodes.json")}
+>
+
+</StatusCodes>