BridgeJS: Generate ConvertibleToJSValue extensions for exported Swift classes #1629

Job	Run time
Build for native target (macos-15, Xcode_16.4)	44s
format	32s
check-bridgejs-generated	5m 37s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.0.2-release/ubuntu2204/swift-6.0...	4m 45s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	6m 27s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	6m 0s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	4m 41s
build-examples	11m 14s
deploy-examples	0s
	40m 0s

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