Fix dashboard storage pool label styling

Replace non-existent Typography::primary() with Typography::secondary() for
MergerFS pool labels following existing UI patterns.

shared/src/agent_data.rs

@@ -96,6 +96,8 @@ pub struct PoolData {
     pub total_gb: f32,
     pub data_drives: Vec<PoolDriveData>,
     pub parity_drives: Vec<PoolDriveData>,
+    pub health_status: Status,
+    pub usage_status: Status,
 }
 
 /// Drive in a storage pool
@@ -105,6 +107,8 @@ pub struct PoolDriveData {
     pub temperature_celsius: Option<f32>,
     pub wear_percent: Option<f32>,
     pub health: String,
+    pub health_status: Status,
+    pub temperature_status: Status,
 }
 
 /// Service monitoring data