Summary

When using models that support resolution enum (1K/2K/4K), selecting a different aspect ratio would cause the resolution to be lost. This PR fixes the issue by:

1. Preserving resolution when changing aspect ratios for models that support the same resolution enum value
2. Stripping resolution when the new aspect ratio's schema doesn't support the current resolution value

Fixes #13283

Changes

Code Fix (action.ts)

Added validation logic to setAspectRatio that:

• Preserves parameters.resolution if the new schema's enum includes the current value
• Strips parameters.resolution if the new schema's enum doesn't include the value, or if the schema has no resolution enum

Tests (action.test.ts)

Added 3 regression tests under Aspect Ratio Setting describe block:

• should preserve resolution when changing aspect ratio for models with resolution enum
• should strip resolution when new schema does not support the current resolution value
• should strip resolution when schema has no resolution enum

Reviewer Feedback Addressed

This PR supersedes #13324 by addressing:

1. ✅ Adding regression test for resolution preservation
2. ✅ Validating preserved value against schema's enum