feat: add churn v2

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/churn/src/state.rs

@@ -0,0 +1,32 @@
+use std::{ops::Deref, sync::Arc};
+
+#[derive(Clone)]
+pub struct SharedState(Arc<State>);
+
+impl SharedState {
+    pub async fn new() -> anyhow::Result<Self> {
+        Ok(Self(Arc::new(State::new().await?)))
+    }
+}
+
+impl From<&SharedState> for SharedState {
+    fn from(value: &SharedState) -> Self {
+        value.clone()
+    }
+}
+
+impl Deref for SharedState {
+    type Target = Arc<State>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+pub struct State {}
+
+impl State {
+    pub async fn new() -> anyhow::Result<Self> {
+        Ok(Self {})
+    }
+}