lifecycle: u16::try_from instead of as-cast

hive-c0re/src/lifecycle.rs

@@ -34,7 +34,8 @@ pub fn agent_web_port(name: &str) -> u16 {
         hash ^= u32::from(b);
         hash = hash.wrapping_mul(16_777_619);
     }
-    WEB_PORT_BASE + (hash % u32::from(WEB_PORT_RANGE)) as u16
+    // Modulo of a u32 by a u16's value is guaranteed < u16::MAX, so try_from never fails.
+    WEB_PORT_BASE + u16::try_from(hash % u32::from(WEB_PORT_RANGE)).unwrap_or(0)
 }
 
 pub fn container_name(name: &str) -> String {