Set term to `24` hours

Note: Since our sliding window of `next_24_hours` in the oracle actor is current hour `+[1..24]` the window should always be able to handle fetching an event of current hour + 1.

daemon/src/model/cfd.rs

@@ -102,7 +102,7 @@ pub struct Order {
 
 #[allow(dead_code)] // Only one binary and the tests use this.
 impl Order {
-    pub const TERM: Duration = Duration::hours(8);
+    pub const TERM: Duration = Duration::hours(24);
 
     pub fn new(
         price: Usd,