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/versioned_docs/version-6.1.0/databases/supported/base.mdx

@@ -0,0 +1,31 @@
+---
+title: base
+sidebar_label: base
+description: "Documentation for base database connection."
+hide_title: true
+---
+
+{/*
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+*/}
+
+import { DatabasePage } from '@site/src/components/databases';
+
+export const databaseInfo = {"time_grains":{"SECOND":true,"FIVE_SECONDS":true,"THIRTY_SECONDS":true,"MINUTE":true,"FIVE_MINUTES":true,"TEN_MINUTES":true,"FIFTEEN_MINUTES":true,"THIRTY_MINUTES":false,"HALF_HOUR":true,"HOUR":true,"SIX_HOURS":true,"DAY":true,"WEEK":true,"WEEK_STARTING_SUNDAY":true,"WEEK_STARTING_MONDAY":true,"WEEK_ENDING_SATURDAY":true,"WEEK_ENDING_SUNDAY":true,"MONTH":true,"QUARTER":true,"QUARTER_YEAR":false,"YEAR":true},"module":"superset.db_engine_specs.presto","limit_method":1,"limit_clause":true,"joins":true,"subqueries":true,"alias_in_select":true,"alias_in_orderby":true,"time_groupby_inline":false,"alias_to_source_column":false,"order_by_not_in_select":true,"expressions_in_orderby":false,"cte_in_subquery":true,"max_column_name":null,"sql_comments":true,"escaped_colons":true,"masked_encrypted_extra":false,"column_type_mapping":true,"function_names":true,"user_impersonation":false,"file_upload":true,"get_extra_table_metadata":false,"dbapi_exception_mapping":false,"custom_errors":false,"dynamic_schema":true,"catalog":true,"dynamic_catalog":true,"ssh_tunneling":true,"query_cancelation":false,"get_metrics":false,"where_latest_partition":true,"expand_data":false,"query_cost_estimation":true,"sql_validation":false,"score":109,"max_score":201,"documentation":{"pypi_packages":[],"connection_string":"engine+driver://user:password@host:port/dbname[?key=value&key=value...]","category":"Other Databases","custom_errors":[{"regex_name":"COLUMN_DOES_NOT_EXIST_REGEX","message_template":"We can't seem to resolve the column \"%(column_name)s\" at line %(location)s.","error_type":"COLUMN_DOES_NOT_EXIST_ERROR","category":"Query","description":"Column not found","issue_codes":[1003,1004]},{"regex_name":"TABLE_DOES_NOT_EXIST_REGEX","message_template":"The table \"%(table_name)s\" does not exist. A valid table must be used to run this query.","error_type":"TABLE_DOES_NOT_EXIST_ERROR","category":"Query","description":"Table not found","issue_codes":[1003,1005]},{"regex_name":"SCHEMA_DOES_NOT_EXIST_REGEX","message_template":"The schema \"%(schema_name)s\" does not exist. A valid schema must be used to run this query.","error_type":"SCHEMA_DOES_NOT_EXIST_ERROR","category":"Query","description":"Schema not found","issue_codes":[1003,1016]},{"regex_name":"CONNECTION_ACCESS_DENIED_REGEX","message_template":"Either the username \"%(username)s\" or the password is incorrect.","error_type":"CONNECTION_ACCESS_DENIED_ERROR","category":"Authentication","description":"Access denied","issue_codes":[1014,1015]},{"regex_name":"CONNECTION_INVALID_HOSTNAME_REGEX","message_template":"The hostname \"%(hostname)s\" cannot be resolved.","error_type":"CONNECTION_INVALID_HOSTNAME_ERROR","category":"Connection","description":"Invalid hostname","issue_codes":[1007]},{"regex_name":"CONNECTION_HOST_DOWN_REGEX","message_template":"The host \"%(hostname)s\" might be down, and can't be reached on port %(port)s.","error_type":"CONNECTION_HOST_DOWN_ERROR","category":"Connection","description":"Host unreachable","issue_codes":[1009]},{"regex_name":"CONNECTION_PORT_CLOSED_REGEX","message_template":"Port %(port)s on hostname \"%(hostname)s\" refused the connection.","error_type":"CONNECTION_PORT_CLOSED_ERROR","category":"Connection","description":"Port closed or refused","issue_codes":[1008]},{"regex_name":"CONNECTION_UNKNOWN_DATABASE_ERROR","message_template":"Unable to connect to catalog named \"%(catalog_name)s\".","error_type":"CONNECTION_UNKNOWN_DATABASE_ERROR","category":"Connection","description":"Unknown database","issue_codes":[1015]}]},"engine":"base","engine_name":"base","engine_aliases":[],"default_driver":null,"supports_file_upload":true,"supports_dynamic_schema":true,"supports_catalog":true,"supports_dynamic_catalog":true};
+
+<DatabasePage name="base" database={databaseInfo} />