Note

Adds API-Key + Endpoint auth to Elasticsearch credentials docs, updates Base URL guidance, and revises basic auth steps with a serverless caveat.

• Docs:
  • Elasticsearch credentials (docs/integrations/builtin/credentials/elasticsearch.md):
    • Add API-Key and Endpoint authentication with setup steps.
    • Add shared instructions to locate the Elasticsearch Base URL.
    • Revise Basic auth setup flow and clarify required fields; note incompatibility with Elastic Serverless.

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