build: limit gradle to two workers on eas so android release builds fit in memory

TODO.md

@@ -2,11 +2,19 @@
 
 Remove items from this list once they are done.
 
-- check that release builds upload their source maps to Bugsink: on the next EAS build, the log
-  should show the Sentry plugin's `sentry-cli` sourcemaps upload, and an error thrown in that build
-  should show symbolicated frames in Bugsink's `cnapp` project. The setup is in place:
-  `SENTRY_AUTH_TOKEN` is a sensitive EAS variable for preview and production and authenticates
-  against Bugsink 2.6.1, and the plugin config in `app.json` matches the project
+- check that Android release builds now fit on EAS's default worker (4 vCPUs, 15.6 GB): two builds
+  ran out of memory there, one stalling in the C++ step until EAS's 45-minute limit and the next
+  failing with "Gradle build daemon disappeared unexpectedly". Reproduced locally under the same
+  limits (`taskset -c 0-3` and a 15 GB, no-swap systemd scope): the build succeeds in 20 minutes
+  but peaks at 13.3 GB of anonymous memory while Skia, Reanimated/Worklets, Screens and Sentry
+  compile their C++ for four ABIs in parallel. Both build profiles in `eas.json` now set
+  `GRADLE_OPTS: "-Dorg.gradle.workers.max=2"` (Gradle uses 2 worker leases instead of one per CPU).
+  If that still fails or nears 45 minutes, try `"resourceClass": "large"` for Android (paid plan);
+  meanwhile `eas build -p android --profile production --local` works, with the .aab submitted
+  through `eas submit -p android --profile beta --path <aab>`
+- check that release builds' source maps make Bugsink's stack traces readable: the upload works
+  (build 31's log shows `Uploaded files to Sentry` once `SENTRY_URL` was set in `eas.json`), so
+  throw an error in a release build and check for symbolicated frames in Bugsink's `cnapp` project
 - consider turning on R8 for Android release builds (SDK 58 default, disabled via
   `android.enableMinifyInReleaseBuilds: false` in the `expo-build-properties` plugin config in
   `app.json`): smaller APK, but native Android stack traces get obfuscated unless the R8 mapping

eas.json

@@ -8,7 +8,8 @@
         "EXPO_PUBLIC_DUSKEN_FORGOT_PASSWORD_URL": "https://galtinn.neuf.no/auth/password_reset/",
         "EXPO_PUBLIC_DUSKEN_PRIVACY_POLICY_URL": "https://galtinn.neuf.no/nb/personvern/",
         "EXPO_PUBLIC_SENTRY_DSN": "https://af0b4ac4258049d9a21a615b9696190b@bugsink.neuf.no/2",
-        "SENTRY_URL": "https://bugsink.neuf.no/"
+        "SENTRY_URL": "https://bugsink.neuf.no/",
+        "GRADLE_OPTS": "-Dorg.gradle.workers.max=2"
       }
     },
     "production": {
@@ -19,7 +20,8 @@
         "EXPO_PUBLIC_DUSKEN_FORGOT_PASSWORD_URL": "https://galtinn.neuf.no/auth/password_reset/",
         "EXPO_PUBLIC_DUSKEN_PRIVACY_POLICY_URL": "https://galtinn.neuf.no/nb/personvern/",
         "EXPO_PUBLIC_SENTRY_DSN": "https://af0b4ac4258049d9a21a615b9696190b@bugsink.neuf.no/2",
-        "SENTRY_URL": "https://bugsink.neuf.no/"
+        "SENTRY_URL": "https://bugsink.neuf.no/",
+        "GRADLE_OPTS": "-Dorg.gradle.workers.max=2"
       }
     }
   },