BridgeJS: Improved @JS Protocol support - properties, Optional, enums #1779

Job	Run time
format	34s
Build for native target (macos-15, Xcode_16.4)	52s
check-bridgejs-generated	6m 46s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	4m 40s
build-examples	12m 26s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	5m 6s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	5m 48s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.0.2-release/ubuntu2204/swift-6.0...	4m 43s
deploy-examples	0s
	40m 55s

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