Fix gradlew.bat line endings

apple/pkl-spring#46 mergedmixed

What it touches

other: 1 build: 1

Modules: .gitattributes (1), gradlew.bat (1)

Architectural impact (arcade-agent diff_impact)

No production Java file of this PR maps into the dependency graph (tests, build, CI or docs only). Tests are excluded from the graph by design.

Build & CI relevance

• Touches Gradle/build files: review for build-time or cache impact.

Files