ci: make CameraController Harness runs report deterministically

[mrousavy]

Summary

This branch is about CI/Harness reporting, not making failing assertions green.

• Split the monolithic CameraController Harness suite into focused files: zoom, torch, exposure, and metering.
• Keep the same controller test bodies/assertions so individual failures still make CI red.
• Fix Android setExposureBias(...) so the native Promise does not wait for CameraX AE convergence after CameraX has already accepted/reflected the compensation index. This made the Android exposure shard report instead of hanging the suite.
• Keep iOS Jest --forceExit so the testspec returns after Harness/Jest completes.
• Collect the non-empty iOS .harness artifact root instead of the optional .harness/crash-reports leaf. Green iOS runs were still red because Device Farm failed to attach the empty crash-report directory.
• Add Device Farm artifact diagnostics so wrapper failures print Harness output, test spec output, customer artifact logs, and XCTest logs when present.

CI evidence so far

• Run 27025967535 / Android at 75a1ba33: all 15 suites reported. The controller shards all passed. CI stayed red only because real photo/coordinates/video tests failed.
• Run 27025967535 / iOS attempt 3 at 75a1ba33: all 15 Harness suites passed, but Device Farm marked the wrapper failed. Customer artifact logs show Failed to attach directory .../.harness/crash-reports because it is empty, which this branch now fixes by collecting .harness instead.

Verification

• Matched old/new controller test titles: 19 before, 19 after; 2 skipped before, 2 skipped after.
• bunx biome check --write apps/simple-camera/__tests__/README.md apps/simple-camera/__tests__/visioncamera.controller.*.harness.ts
• bunx biome check --write apps/simple-camera/__tests__/visioncamera.controller.exposure.harness.ts .github/actions/collect-devicefarm-results/action.yml .github/workflows/harness-aws-device.yml
• ruby -e 'require "yaml"; YAML.load_file("apps/simple-camera/device-farm-tests/AwsTestSpecIOS.yml"); puts "ok"'
• git diff --check

Notes:

• bunx tsc -p apps/simple-camera/tsconfig.json --noEmit still fails on the existing visioncamera.barcode-scanner.harness.ts scanCodesInImageAsync type issue; this branch does not touch that file.
• Local Android Kotlin compile could not run because this machine has no Java runtime installed.

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Project	Deployment	Actions	Updated (UTC)
react-native-vision-camera-docs	Ready	Preview, Comment	Jun 5, 2026 5:51pm