feat: add health check for MCP servers on dashboard

Add /health endpoint to the MCP server and probe it from the dashboard
on page load to update server status (running/stopped) in real time.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

compliance-dashboard/src/infrastructure/mcp.rs

@@ -113,6 +113,64 @@ pub async fn add_mcp_server(
     Ok(())
 }
 
+/// Probe each MCP server's health endpoint and update status in MongoDB.
+#[server]
+pub async fn refresh_mcp_status() -> Result<(), ServerFnError> {
+    use chrono::Utc;
+    use compliance_core::models::McpServerStatus;
+    use mongodb::bson::doc;
+
+    let state: super::server_state::ServerState =
+        dioxus_fullstack::FullstackContext::extract().await?;
+
+    let mut cursor = state
+        .db
+        .mcp_servers()
+        .find(doc! {})
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+
+    let client = reqwest::Client::builder()
+        .timeout(std::time::Duration::from_secs(5))
+        .build()
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+
+    while cursor
+        .advance()
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?
+    {
+        let server: compliance_core::models::McpServerConfig = cursor
+            .deserialize_current()
+            .map_err(|e| ServerFnError::new(e.to_string()))?;
+
+        let Some(oid) = server.id else { continue };
+
+        // Derive health URL from the endpoint (replace trailing /mcp with /health)
+        let health_url = if server.endpoint_url.ends_with("/mcp") {
+            format!("{}health", &server.endpoint_url[..server.endpoint_url.len() - 3])
+        } else {
+            format!("{}/health", server.endpoint_url.trim_end_matches('/'))
+        };
+
+        let new_status = match client.get(&health_url).send().await {
+            Ok(resp) if resp.status().is_success() => McpServerStatus::Running,
+            _ => McpServerStatus::Stopped,
+        };
+
+        let _ = state
+            .db
+            .mcp_servers()
+            .update_one(
+                doc! { "_id": oid },
+                doc! { "$set": { "status": bson::to_bson(&new_status).unwrap(), "updated_at": Utc::now().to_rfc3339() } },
+            )
+            .await;
+    }
+
+    Ok(())
+}
+
 #[server]
 pub async fn delete_mcp_server(server_id: String) -> Result<(), ServerFnError> {
     use mongodb::bson::doc;