Build only the emulator's own ABI for instrumented tests

API 37 got as far as running the suite this time and then failed to install:

  'package install-create ... -S 117817978'
  java.io.IOException: Requested internal only, but not enough space

The 117 MB debug APK did not fit on the emulator's data partition. The
DELETE_FAILED_INTERNAL_ERROR that followed was the same exhaustion, not a
second problem.

It surfaced on API 37 because that system image is the largest and leaves the
least free userdata. The margin was thin at every level, so this was never
really an API 37 bug -- the others were simply further from the edge and would
have caught up as the APK grew.

Roughly half that APK is arm64-v8a FFmpeg libraries that an x86_64 emulator
can never load. abiFilters is now overridable, so a test run builds only what
it will execute: 114 MB becomes 80 MB. Release builds ignore the property and
still ship both ABIs, so nothing about what gets distributed changes.

disk-size is raised to 8G for every level rather than only the one that
failed, since fixing just API 37 would leave the rest waiting their turn.

Verified locally on an API 36 emulator with an x86_64-only APK: 40
instrumented tests, 0 failures, and the installed APK contains lib/x86_64
only. 66 unit tests still pass, and a release build still carries both ABIs.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.github/workflows/status_check.yml

@@ -171,7 +171,15 @@ jobs:
           # SwiftShader's JIT, which is a known crash source.
           emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
           disable-animations: true
-          script: ./gradlew :app:connectedDebugAndroidTest
+          # The default userdata partition is not big enough for this APK once the
+          # FFmpeg libraries are in it. API 37's system image leaves the least room and
+          # was the level that actually failed, with "Requested internal only, but not
+          # enough space" -- but the margin was thin everywhere, so give them all room.
+          disk-size: 8G
+          # Build only the ABI the emulator can execute. FFmpeg's native libraries
+          # dominate the APK, so shipping arm64 to an x86_64 emulator doubles the
+          # install for code that can never run: 114 MB against 80 MB.
+          script: ./gradlew :app:connectedDebugAndroidTest -PabiFilters=x86_64
 
       - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         if: always()