Add simulator recording audit workflow

[jamesrochabrun]

Summary

• add AgentHub simulator status/run/record MCP tools backed by panel context and request queues
• add simulator recording service with MP4 finalization validation, discard cleanup, and ffmpeg/ffprobe audit prompt generation
• add recording tray UI with required audit text, Cmd+Return send, persistent side panel after send, and delete-on-dismiss behavior

Tests

• swift test --package-path app/modules/AgentHubCLI --filter SimulatorRecordingServiceTests
• swift test --package-path app/modules/AgentHubCLI --filter 'SimulatorRecordingServiceTests|SimulatorRunRequestQueueTests|SimulatorSessionContextStoreTests'\n- xcodebuild test -scheme AgentHubCore-Tests -destination 'platform=macOS' -test-timeouts-enabled YES -skipPackagePluginValidation -only-testing:AgentHubTests/SimulatorRunRequestHandlerTests -only-testing:AgentHubTests/SimulatorRunRequestMonitorTests\n- xcodebuild test -scheme AgentHubCore-Tests -destination 'platform=macOS' -test-timeouts-enabled YES -skipPackagePluginValidation -only-testing:AgentHubTests/SimulatorRecordingPromptBuilderTests\n\nNote: Core xcodebuild test commands report TEST SUCCEEDED; Xcode still prints existing SwiftLint plugin Output folder doesn’t exist lines for CodeEdit dependencies.