Java Docs with HTML frames are not well supported

[arabold]

For example: https://calcite.apache.org/avatica/docs/api/

❌ Playwright failed to render https://calcite.apache.org/avatica/docs/api/: TimeoutError: page.waitForSelector: Timeout 30000ms exceeded.
Call log:
  - waiting for locator('body') to be visible
    - waiting for" https://calcite.apache.org/avatica/javadocAggregate/" navigation to finish...
    - navigated to "https://calcite.apache.org/avatica/javadocAggregate/"

⚠️  Playwright rendering resulted in null content for https://calcite.apache.org/avatica/docs/api/. Proceeding without content update.
⚠️  HTML to Markdown conversion resulted in empty content for https://calcite.apache.org/avatica/docs/api/.
⚠️  Processing error for https://calcite.apache.org/avatica/docs/api/: page.waitForSelector: Timeout 30000ms exceeded.
Call log:
  - waiting for locator('body') to be visible
    - waiting for" https://calcite.apache.org/avatica/javadocAggregate/" navigation to finish...
    - navigated to "https://calcite.apache.org/avatica/javadocAggregate/"

⚠️  No processable content found for https://calcite.apache.org/avatica/docs/api/ after pipeline execution.