Add MAUI --sample-content test app for iOS

[matouskozak]

• Add MAUI -sc test app for iOS
• Reduce iOS payload size to fit into 2GB helix limit with CoreCLR
• Move from testing different codegens for Android to Default configurations to simplify the measurements.

Testing run: https://dev.azure.com/dnceng/internal/_build/results?buildId=2903332&view=results

[Copilot]

Pull request overview

This pull request adds a new MAUI sample content test scenario for iOS and implements payload size reduction measures. It also simplifies Android performance measurements by moving from testing multiple codegens to using default configurations.

Changes:

• Added new MAUI sample content iOS test scenario (mauisamplecontentios)
• Reduced payload size by removing build intermediates (obj/bin directories) from correlation staging
• Simplified Android MAUI benchmarks by replacing ProfiledAOT, JIT, R2R, and R2RComposite with Default codegen configurations
• Changed iOS MAUI benchmark from FullAOT to Default codegen configuration

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/scenarios/mauisamplecontentios/test.py	New test runner for iOS MAUI sample content scenario
src/scenarios/mauisamplecontentios/pre.py	Pre-build script to setup and build iOS MAUI sample content app
src/scenarios/mauisamplecontentios/post.py	Post-test cleanup script for iOS scenario
eng/pipelines/sdk-perf-jobs.yml	Updated Android and iOS MAUI benchmark configurations to use Default codegen
eng/performance/maui_scenarios_ios.proj	Added new sample content scenario, fixed path separator, and added payload reduction

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[Copilot]

The file path should use os.path.join for cross-platform compatibility instead of an rf-string with forward slash. The file is also missing the import os statement. Other similar test files (mauiios/test.py, mauisamplecontentandroid/test.py) use os.path.join(".", PUBDIR, "versions.json").

[Copilot]

The path hardcodes "Release" instead of using precommands.configuration like the comparable mauiios/pre.py file (line 42). This prevents the code from working correctly with different build configurations.

Suggested change

	version_dict = get_sdk_versions(rf"./{const.APPDIR}/obj/Release/{precommands.framework}/ios-arm64/linked", False)
	versions_write_json(version_dict, rf"{output_dir}/versions.json")
	print(f"Versions: {version_dict} from location " + rf"./{const.APPDIR}/obj/Release/{precommands.framework}/ios-arm64/linked")
	version_dict = get_sdk_versions(rf"./{const.APPDIR}/obj/{precommands.configuration}/{precommands.framework}/ios-arm64/linked", False)
	versions_write_json(version_dict, rf"{output_dir}/versions.json")
	print(f"Versions: {version_dict} from location " + rf"./{const.APPDIR}/obj/{precommands.configuration}/{precommands.framework}/ios-arm64/linked")

[Copilot]

Import of 'shutil' is not used.

Suggested change

import shutil