feat(web): metric monitor rule builder and per-server state table

web/lib/api.ts

@@ -121,6 +121,18 @@ export interface Incident {
     server_id?: string;
 }
 
+/** Per-server state for a metric monitor's rule, one row per matching server. */
+export interface MonitorServerState {
+    monitor_id: string;
+    server_id: string;
+    hostname?: string;
+    status: MonitorStatus;
+    breach_since?: string;
+    value: number;
+    message?: string;
+    updated_at: string;
+}
+
 /** One check result. Kept for 48 hours, which is what the sub-hour views read. */
 export interface MonitorSample {
     monitor_id: string;
@@ -1035,6 +1047,10 @@ export const api = {
         return request<Incident[]>(`/monitors/${monitorId}/incidents`);
     },
 
+    monitorServers(monitorId: string): Promise<MonitorServerState[]> {
+        return request<MonitorServerState[]>(`/monitors/${monitorId}/servers`);
+    },
+
     getMonitorUptime(monitorId: string): Promise<Rollup[]> {
         return request<Rollup[]>(`/monitors/${monitorId}/uptime`);
     },