Take a look at https://conductor.build/ - they really pioneered this whole direction of using git worktrees. Cursor will soon look like their app, Opencode will soon look like their app, etc.
I migrated from ts-rest to Effect/HttpApi. It's an incredible ecosystem, and Effect/Schema has over taken my domain layer. Definitely a learning curve though.
I believe Effect Schema fully supports Standard Schema, the issue is that it supports much more than Standard Schema, so not all schemas will work and thus provide compile time errors.