[Issue 266] generator schema row keyboard tab order skips Field type and Value controls

[eviltester]

Summary

In the generator schema editor row mode, keyboard tabbing from the Column Name field moves focus out of the expected row edit flow and onto page/body or row action buttons instead of the next meaningful Field type/Value controls.

Reproduction

1. Open https://eviltester.github.io/grid-table-editor/site/app.html.
2. Open the generator/schema editor in row mode.
3. Focus the Column Name field.
4. Press Tab repeatedly.
5. Observe that focus skips the expected row editing controls.

Expected

Keyboard users should be able to tab through Column Name, Field type, Value/command parameters, and row actions in a coherent order.

Actual

Focus leaves the expected editing sequence and makes row editing awkward or incomplete by keyboard.

Evidence

• Defect report: https://github.com/eviltester/anywaydata-ai-testing/blob/main/docs/testing/20260629/issue-266-001/defects/defect-004-generator-schema-keyboard-tab-loop.md
• Screenshot: https://github.com/eviltester/anywaydata-ai-testing/blob/main/docs/testing/20260629/issue-266-001/screenshots/defect-generator-schema-keyboard-loop.png