- Created comprehensive test suite RasFallbackTagPropagationSuite.scala
- Test demonstrates how fallback tags don't propagate from RAS rule copies back to original plan
- Includes two test cases: complex scenario and simplified reproduction
- Added detailed documentation explaining the issue and root cause
- References TODO comments in RasOffload.scala lines 136-138, 150-152

Co-authored-by: openhands <openhands@all-hands.dev>

- Applied Spotless formatter to fix line length and indentation issues
- Reformatted comments to comply with project style guidelines
- Fixed spacing and line breaks in RasFallbackTagPropagationSuite.scala

Co-authored-by: openhands <openhands@all-hands.dev>

- Wrapped all println statements with scalastyle:off/on comments
- Fixed toLowerCase/toUpperCase locale issues with caselocale suppressions
- Replaced non-ASCII characters (✓, ⚠) with plain text
- Split long lines to stay under 100 character limit
- Applied spotless formatter for consistent indentation and spacing

All scalastyle and spotless checks now pass.

Co-authored-by: openhands <openhands@all-hands.dev>

…er limit

Co-authored-by: openhands <openhands@all-hands.dev>

- Fix withSQLConf usage by using var assignments inside blocks instead of trying to assign return value
- Remove unused imports: BackendTestUtils and Row
- Resolves compilation errors: 'value foreach is not a member of Unit' and 'value values is not a member of Unit'

Co-authored-by: openhands <openhands@all-hands.dev>

…e in VeloxTestSettings

- Move RasFallbackTagPropagationSuite.scala from gluten-ut/spark34 to gluten-ut/spark35
- Remove sparkConf override method and unused imports (SparkConf, UI_ENABLED)
- Add RasFallbackTagPropagationSuite import and enableSuite line to VeloxTestSettings.scala
- Test is now ready to reproduce RAS fallback tag propagation issue apache#7763

Co-authored-by: openhands <openhands@all-hands.dev>