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/contexts/session-context.service-status.test.ts

@@ -0,0 +1,64 @@
+import { describe, expect, it } from "vitest";
+import type { WorkspaceServicePayload } from "@server/shared/messages";
+import type { WorkspaceDescriptor } from "@/stores/session-store";
+import { patchWorkspaceServices } from "./session-workspace-services";
+
+function workspace(input: {
+  id: string;
+  services?: WorkspaceDescriptor["services"];
+}): WorkspaceDescriptor {
+  return {
+    id: input.id,
+    projectId: "project-1",
+    projectDisplayName: "Project 1",
+    projectRootPath: "/repo",
+    projectKind: "git",
+    workspaceKind: "local_checkout",
+    name: "main",
+    status: "running",
+    activityAt: null,
+    diffStat: null,
+    services: input.services ?? [],
+  };
+}
+
+const runningService: WorkspaceServicePayload = {
+  serviceName: "web",
+  hostname: "main.web.localhost",
+  port: 3000,
+  url: "http://main.web.localhost:6767",
+  status: "running",
+};
+
+describe("patchWorkspaceServices", () => {
+  it("patches only the matching workspace services", () => {
+    const other = workspace({ id: "/repo/other", services: [] });
+    const current = new Map<string, WorkspaceDescriptor>([
+      ["/repo/main", workspace({ id: "/repo/main", services: [] })],
+      [other.id, other],
+    ]);
+
+    const next = patchWorkspaceServices(current, {
+      workspaceId: "/repo/main",
+      services: [runningService],
+    });
+
+    expect(next).not.toBe(current);
+    expect(next.get("/repo/main")?.services).toEqual([runningService]);
+    expect(next.get("/repo/other")).toBe(other);
+  });
+
+  it("ignores updates for unknown workspaces", () => {
+    const current = new Map<string, WorkspaceDescriptor>([
+      ["/repo/main", workspace({ id: "/repo/main", services: [] })],
+    ]);
+
+    const next = patchWorkspaceServices(current, {
+      workspaceId: "/repo/missing",
+      services: [runningService],
+    });
+
+    expect(next).toBe(current);
+    expect(next.get("/repo/main")?.services).toEqual([]);
+  });
+});