lasdf1234 opened a new pull request, #11519:
URL: https://github.com/apache/gravitino/pull/11519

   ### What changes were proposed in this pull request?
   
   Add two sections to `docs/security/how-to-use-built-in-idp.md`:
   
   1. **Engines using Basic authentication** — Spark, Flink, and Trino 
connector settings for dynamic catalog (`authType=basic`, `${username}` / 
`${password}`).
   2. **Engines using Basic authentication for Iceberg REST catalog** — 
Spark/Flink REST auth properties and Trino `http-headers` with 
`<base64-credentials>`.
   
   Links to existing connector authentication docs are included for full setup.
   
   ### Why are the changes needed?
   
   The built-in IDP guide documents IDP management APIs but did not describe 
how engines authenticate to Gravitino with Basic credentials. This closes that 
gap with a focused, engine-specific reference.
   
   Fix: #11518
   
   ### Does this PR introduce _any_ user-facing change?
   
   Documentation only. No API or configuration key changes.
   
   ### How was this patch tested?
   
   - Reviewed rendered markdown for correctness and placeholder consistency.
   
   Made with [Cursor](https://cursor.com)


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