runTestPipeline assembles the v0.1 stack end to end:
1. Bundle the spec (with @uatu/spec alias resolution)
2. Extract the embedded sidecar JAR
3. Spawn java -jar sidecar --port <free>
4. Wait for sidecar Health
5. Listen on a host TCP port + adb reverse to the device's
localabstract:uatu-agent socket
6. Launch the app via the maestro driver
7. Accept the SDK HELLO
8. Load the bundle into the verifier
9. Open the trace writer + write meta.json
10. runner.Run for the requested duration
11. Terminate the app + clean up adb reverse
Test subcommand now prints a bundle error for a missing spec,
verifying the flag surface reaches the pipeline.
