#9732 fix(docs): align navigation and collapse integration fields

Summary

• Left-align wrapped sidebar labels and keep a single active ToC underline without hover styling.
• Collapse action inputs/outputs and trigger configuration/outputs consistently across 93 regenerated integration references.
• Add browser regressions for alignment, disclosure interaction, and ToC presentation.

Type of Change

• Bug fix

Testing

Production docs build; Chromium (97 checks) and Linux WebKit (93 passed, 4 unsupported cases) across light/dark layouts at 320–1920px; complete docs corpus verification (3,008 checks); generated content preservation and freshness checks; root lint, type-check, check:audits (63), block registry check, and test suite. Regression checks fail with the corresponding fixes removed.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing (new tests pass the test-audit authoring gate)
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)