Packaged desktop sidecar crashes at first DB read: jlink image omits java.sql

Open desktop-sidecar/build.gradle.kts and inspect the nativeDistributions block, then reproduce with ./gradlew createDistributable and the packaged AgentTaskQueueSidecar command from the issue. Done means the packaged sidecar completes its first database read without the java.sql.Driver ClassNotFoundException.

Summary

The packaged desktop sidecar produced by the README's documented package path (./gradlew packageDistributionForCurrentOS, or createDistributable) crashes on its first database read with ClassNotFoundException: java.sql.Driver. ./gradlew run is unaffected because it runs on the full JDK.

Environment

• macOS 15 (arm64), Temurin JDK 21.0.12
• repo at ccb94ae25c2b286d62e7371fd4c0f7ce60e33efa

Reproduce

cd desktop-sidecar
./gradlew createDistributable
./build/compose/binaries/main/app/AgentTaskQueueSidecar.app/Contents/MacOS/AgentTaskQueueSidecar --data-dir /tmp/atq-repro

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: java/sql/Driver
	at com.block.agenttaskqueue.sidecar.TaskQueueDatabase.<clinit>(TaskQueueDatabase.kt:10)
	...
Caused by: java.lang.ClassNotFoundException: java.sql.Driver

Cause

desktop-sidecar/build.gradle.kts's nativeDistributions block declares no modules(...), so the jlink runtime image omits java.sql even though the project depends on org.xerial:sqlite-jdbc (3.53.0.0), which needs it at class-load time.

Fix

One line in the nativeDistributions block:

modules("java.sql")

Happy to send the one-line PR if that's easier.