examples: add encryption example. #1675

Job	Run time
List examples	4s
List packages	6s
Build and test (packages/typescript-client)	1m 19s
Check packages/typescript-client	33s
Build and test (packages/react-hooks)	1m 2s
Check packages/react-hooks	30s
Check and build examples/encryption	36s
Check and build examples/proxy-auth	41s
Check and build examples/redis-sync	29s
Check and build examples/bash-client	25s
Check and build examples/linearlite	56s
Check and build examples/gatekeeper-auth	29s
Check and build examples/todo-app	36s
Check and build examples/tanstack-example	40s
Check and build examples/nextjs-example	53s
Check and build examples/basic-example	36s
Check and build examples/remix-basic	38s
	10m 33s

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