feat: service proxy, health monitor, hover card, and homepage section

Built-in service proxy with branch-based URLs, service health
monitoring, workspace hover card with service status, and
"Forget about ports" homepage section.

packages/app/src/stores/session-store.ts

@@ -119,6 +119,7 @@ export interface WorkspaceDescriptor {
   status: WorkspaceDescriptorPayload["status"];
   activityAt: Date | null;
   diffStat: { additions: number; deletions: number } | null;
+  services: WorkspaceDescriptorPayload["services"];
 }
 
 export function normalizeWorkspaceDescriptor(
@@ -136,6 +137,7 @@ export function normalizeWorkspaceDescriptor(
     status: payload.status,
     activityAt: activityAt && !Number.isNaN(activityAt.getTime()) ? activityAt : null,
     diffStat: payload.diffStat ?? null,
+    services: (payload.services ?? []).map((s) => ({ ...s })),
   };
 }