feat: with sled db and capnp

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

crates/churn-domain/Cargo.toml

@@ -20,3 +20,4 @@ axum.workspace = true
 reqwest.workspace = true
 serde.workspace = true
 uuid.workspace = true
+chrono.workspace = true

crates/churn-domain/src/lib.rs

@@ -29,6 +29,7 @@ pub struct LogEvent {
     pub id: uuid::Uuid,
     pub author: String,
     pub content: String,
+    pub timestamp: chrono::DateTime<chrono::Utc>,
 }
 
 impl LogEvent {
@@ -37,6 +38,7 @@ impl LogEvent {
             id: uuid::Uuid::new_v4(),
             author: author.into(),
             content: content.into(),
+            timestamp: chrono::Utc::now(),
         }
     }
 }