feat(web): wire dashboard widgets to real API data (#459)

- Create dashboard API client with TypeScript interfaces
- Update page.tsx to fetch from GET /api/dashboard/summary on mount
- DashboardMetrics: accept metrics prop, map to 6 cells with real data
- ActivityFeed: accept items prop, map actions to icons/timestamps
- OrchestratorSessions: accept jobs prop, render steps as agent nodes
- TokenBudget: accept budgets prop, compute percentages
- All widgets have empty/zero fallback states
- Update page tests to mock API fetch

Task: MS-P2-002

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/src/app/(authenticated)/page.test.tsx

@@ -1,5 +1,5 @@
-import { describe, it, expect, vi } from "vitest";
-import { render, screen } from "@testing-library/react";
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { render, screen, waitFor } from "@testing-library/react";
 import DashboardPage from "./page";
 
 // Mock Phase 3 dashboard widgets
@@ -27,29 +27,64 @@ vi.mock("@/components/dashboard/TokenBudget", () => ({
   TokenBudget: (): React.JSX.Element => <div data-testid="token-budget">Token Budget</div>,
 }));
 
+// Mock hooks and API calls
+vi.mock("@/lib/hooks", () => ({
+  useWorkspaceId: (): string | null => "ws-test-123",
+}));
+
+vi.mock("@/lib/api/dashboard", () => ({
+  fetchDashboardSummary: vi.fn().mockResolvedValue({
+    metrics: {
+      activeAgents: 5,
+      tasksCompleted: 42,
+      totalTasks: 100,
+      tasksInProgress: 10,
+      activeProjects: 3,
+      errorRate: 0.5,
+    },
+    recentActivity: [],
+    activeJobs: [],
+    tokenBudget: [],
+  }),
+}));
+
 describe("DashboardPage", (): void => {
-  it("should render the DashboardMetrics widget", (): void => {
-    render(<DashboardPage />);
-    expect(screen.getByTestId("dashboard-metrics")).toBeInTheDocument();
+  beforeEach((): void => {
+    vi.clearAllMocks();
   });
 
-  it("should render the OrchestratorSessions widget", (): void => {
+  it("should render the DashboardMetrics widget", async (): Promise<void> => {
     render(<DashboardPage />);
-    expect(screen.getByTestId("orchestrator-sessions")).toBeInTheDocument();
+    await waitFor((): void => {
+      expect(screen.getByTestId("dashboard-metrics")).toBeInTheDocument();
+    });
   });
 
-  it("should render the QuickActions widget", (): void => {
+  it("should render the OrchestratorSessions widget", async (): Promise<void> => {
     render(<DashboardPage />);
-    expect(screen.getByTestId("quick-actions")).toBeInTheDocument();
+    await waitFor((): void => {
+      expect(screen.getByTestId("orchestrator-sessions")).toBeInTheDocument();
+    });
   });
 
-  it("should render the ActivityFeed widget", (): void => {
+  it("should render the QuickActions widget", async (): Promise<void> => {
     render(<DashboardPage />);
-    expect(screen.getByTestId("activity-feed")).toBeInTheDocument();
+    await waitFor((): void => {
+      expect(screen.getByTestId("quick-actions")).toBeInTheDocument();
+    });
   });
 
-  it("should render the TokenBudget widget", (): void => {
+  it("should render the ActivityFeed widget", async (): Promise<void> => {
     render(<DashboardPage />);
-    expect(screen.getByTestId("token-budget")).toBeInTheDocument();
+    await waitFor((): void => {
+      expect(screen.getByTestId("activity-feed")).toBeInTheDocument();
+    });
+  });
+
+  it("should render the TokenBudget widget", async (): Promise<void> => {
+    render(<DashboardPage />);
+    await waitFor((): void => {
+      expect(screen.getByTestId("token-budget")).toBeInTheDocument();
+    });
   });
 });

apps/web/src/app/(authenticated)/page.tsx

@@ -1,24 +1,76 @@
 "use client";
 
+import { useState, useEffect } from "react";
 import type { ReactElement } from "react";
 import { DashboardMetrics } from "@/components/dashboard/DashboardMetrics";
 import { OrchestratorSessions } from "@/components/dashboard/OrchestratorSessions";
 import { QuickActions } from "@/components/dashboard/QuickActions";
 import { ActivityFeed } from "@/components/dashboard/ActivityFeed";
 import { TokenBudget } from "@/components/dashboard/TokenBudget";
+import { fetchDashboardSummary } from "@/lib/api/dashboard";
+import type { DashboardSummaryResponse } from "@/lib/api/dashboard";
+import { useWorkspaceId } from "@/lib/hooks";
 
 export default function DashboardPage(): ReactElement {
+  const workspaceId = useWorkspaceId();
+  const [data, setData] = useState<DashboardSummaryResponse | null>(null);
+  const [isLoading, setIsLoading] = useState(true);
+
+  useEffect(() => {
+    let cancelled = false;
+
+    async function loadSummary(): Promise<void> {
+      try {
+        const summary = await fetchDashboardSummary(workspaceId ?? undefined);
+        if (!cancelled) {
+          setData(summary);
+        }
+      } catch (err: unknown) {
+        // Log but do not crash; widgets will render with empty states
+        console.error("[Dashboard] Failed to fetch summary:", err);
+      } finally {
+        if (!cancelled) {
+          setIsLoading(false);
+        }
+      }
+    }
+
+    void loadSummary();
+
+    return (): void => {
+      cancelled = true;
+    };
+  }, [workspaceId]);
+
+  if (isLoading) {
+    return (
+      <div style={{ display: "flex", flexDirection: "column", gap: 16 }}>
+        <DashboardMetrics />
+        <div className="dash-grid">
+          <div style={{ display: "flex", flexDirection: "column", gap: 16, minWidth: 0 }}>
+            <OrchestratorSessions />
+            <QuickActions />
+          </div>
+          <div style={{ display: "flex", flexDirection: "column", gap: 16 }}>
+            <ActivityFeed />
+            <TokenBudget />
+          </div>
+        </div>
+      </div>
+    );
+  }
+
   return (
     <div style={{ display: "flex", flexDirection: "column", gap: 16 }}>
-      <DashboardMetrics />
+      <DashboardMetrics metrics={data?.metrics} />
       <div className="dash-grid">
         <div style={{ display: "flex", flexDirection: "column", gap: 16, minWidth: 0 }}>
-          <OrchestratorSessions />
+          <OrchestratorSessions jobs={data?.activeJobs} />
           <QuickActions />
         </div>
         <div style={{ display: "flex", flexDirection: "column", gap: 16 }}>
-          <ActivityFeed />
-          <TokenBudget />
+          <ActivityFeed items={data?.recentActivity} />
+          <TokenBudget budgets={data?.tokenBudget} />
         </div>
       </div>
     </div>

apps/web/src/components/dashboard/ActivityFeed.tsx

@@ -1,5 +1,6 @@
 import type { ReactElement } from "react";
 import { Card, SectionHeader, Badge } from "@mosaic/ui";
+import type { RecentActivity } from "@/lib/api/dashboard";
 
 type BadgeVariantType =
   | "badge-amber"
@@ -10,7 +11,7 @@ type BadgeVariantType =
   | "badge-purple"
   | "badge-pulse";
 
-interface ActivityItem {
+interface ActivityDisplayItem {
   id: string;
   icon: string;
   iconBg: string;
@@ -18,82 +19,91 @@ interface ActivityItem {
   highlight: string;
   rest: string;
   timestamp: string;
-  badge?: {
-    text: string;
-    variant: BadgeVariantType;
+  badge?:
+    | {
+        text: string;
+        variant: BadgeVariantType;
+      }
+    | undefined;
+}
+
+export interface ActivityFeedProps {
+  items?: RecentActivity[] | undefined;
+}
+
+/* ------------------------------------------------------------------ */
+/*  Mapping helpers                                                    */
+/* ------------------------------------------------------------------ */
+
+function getIconForAction(action: string): { icon: string; iconBg: string } {
+  const lower = action.toLowerCase();
+  if (lower.includes("complet") || lower.includes("finish") || lower.includes("success")) {
+    return { icon: "\u2713", iconBg: "rgba(20,184,166,0.15)" };
+  }
+  if (lower.includes("fail") || lower.includes("error")) {
+    return { icon: "\u2717", iconBg: "rgba(229,72,77,0.15)" };
+  }
+  if (lower.includes("warn") || lower.includes("limit")) {
+    return { icon: "\u26A0", iconBg: "rgba(245,158,11,0.15)" };
+  }
+  if (lower.includes("start") || lower.includes("creat")) {
+    return { icon: "\u2191", iconBg: "rgba(47,128,255,0.15)" };
+  }
+  if (lower.includes("update") || lower.includes("modif")) {
+    return { icon: "\u21BB", iconBg: "rgba(139,92,246,0.15)" };
+  }
+  return { icon: "\u2022", iconBg: "rgba(100,116,139,0.15)" };
+}
+
+function getBadgeForAction(action: string): ActivityDisplayItem["badge"] {
+  const lower = action.toLowerCase();
+  if (lower.includes("fail") || lower.includes("error")) {
+    return { text: "error", variant: "badge-red" };
+  }
+  if (lower.includes("warn") || lower.includes("limit")) {
+    return { text: "warn", variant: "badge-amber" };
+  }
+  return undefined;
+}
+
+function formatRelativeTime(isoDate: string): string {
+  const now = Date.now();
+  const then = new Date(isoDate).getTime();
+  const diffMs = now - then;
+
+  if (Number.isNaN(diffMs) || diffMs < 0) return "just now";
+
+  const minutes = Math.floor(diffMs / 60_000);
+  if (minutes < 1) return "just now";
+  if (minutes < 60) return `${String(minutes)}m ago`;
+
+  const hours = Math.floor(minutes / 60);
+  if (hours < 24) return `${String(hours)}h ago`;
+
+  const days = Math.floor(hours / 24);
+  return `${String(days)}d ago`;
+}
+
+function mapActivityToDisplay(activity: RecentActivity): ActivityDisplayItem {
+  const { icon, iconBg } = getIconForAction(activity.action);
+  return {
+    id: activity.id,
+    icon,
+    iconBg,
+    title: "",
+    highlight: activity.entityType,
+    rest: ` ${activity.action} (${activity.entityId})`,
+    timestamp: formatRelativeTime(activity.createdAt),
+    badge: getBadgeForAction(activity.action),
   };
 }
 
-const activityItems: ActivityItem[] = [
-  {
-    id: "act-1",
-    icon: "✓",
-    iconBg: "rgba(20,184,166,0.15)",
-    title: "",
-    highlight: "planner-agent",
-    rest: " completed task analysis for infra-refactor",
-    timestamp: "2m ago",
-  },
-  {
-    id: "act-2",
-    icon: "⚠",
-    iconBg: "rgba(245,158,11,0.15)",
-    title: "",
-    highlight: "executor-agent",
-    rest: " hit rate limit on Terraform API",
-    timestamp: "5m ago",
-    badge: { text: "warn", variant: "badge-amber" },
-  },
-  {
-    id: "act-3",
-    icon: "↑",
-    iconBg: "rgba(47,128,255,0.15)",
-    title: "",
-    highlight: "ORCH-002",
-    rest: " session started for api-v3-migration",
-    timestamp: "12m ago",
-  },
-  {
-    id: "act-4",
-    icon: "✗",
-    iconBg: "rgba(229,72,77,0.15)",
-    title: "",
-    highlight: "migrator-agent",
-    rest: " failed to connect to staging database",
-    timestamp: "18m ago",
-    badge: { text: "error", variant: "badge-red" },
-  },
-  {
-    id: "act-5",
-    icon: "✓",
-    iconBg: "rgba(20,184,166,0.15)",
-    title: "",
-    highlight: "reviewer-agent",
-    rest: " approved PR #214 in infra-refactor",
-    timestamp: "34m ago",
-  },
-  {
-    id: "act-6",
-    icon: "⟳",
-    iconBg: "rgba(139,92,246,0.15)",
-    title: "Token budget reset for ",
-    highlight: "gpt-4o",
-    rest: " model",
-    timestamp: "1h ago",
-  },
-  {
-    id: "act-7",
-    icon: "★",
-    iconBg: "rgba(20,184,166,0.15)",
-    title: "Project ",
-    highlight: "data-pipeline",
-    rest: " marked as completed",
-    timestamp: "2h ago",
-  },
-];
+/* ------------------------------------------------------------------ */
+/*  Components                                                         */
+/* ------------------------------------------------------------------ */
 
 interface ActivityItemRowProps {
-  item: ActivityItem;
+  item: ActivityDisplayItem;
 }
 
 function ActivityItemRow({ item }: ActivityItemRowProps): ReactElement {
@@ -155,14 +165,27 @@ function ActivityItemRow({ item }: ActivityItemRowProps): ReactElement {
   );
 }
 
-export function ActivityFeed(): ReactElement {
+export function ActivityFeed({ items }: ActivityFeedProps): ReactElement {
+  const displayItems = items ? items.map(mapActivityToDisplay) : [];
+
   return (
     <Card>
       <SectionHeader title="Activity Feed" subtitle="Recent agent events" />
       <div>
-        {activityItems.map((item) => (
-          <ActivityItemRow key={item.id} item={item} />
-        ))}
+        {displayItems.length > 0 ? (
+          displayItems.map((item) => <ActivityItemRow key={item.id} item={item} />)
+        ) : (
+          <div
+            style={{
+              padding: "24px 0",
+              textAlign: "center",
+              fontSize: "0.8rem",
+              color: "var(--muted)",
+            }}
+          >
+            No recent activity
+          </div>
+        )}
       </div>
     </Card>
   );

apps/web/src/components/dashboard/DashboardMetrics.tsx

@@ -1,45 +1,69 @@
 import type { ReactElement } from "react";
 import { MetricsStrip, type MetricCell } from "@mosaic/ui";
+import type { DashboardMetrics as DashboardMetricsData } from "@/lib/api/dashboard";
 
-const cells: MetricCell[] = [
-  {
-    label: "Active Agents",
-    value: "47",
-    color: "var(--ms-blue-400)",
-    trend: { direction: "up", text: "↑ +3 from yesterday" },
-  },
-  {
-    label: "Tasks Completed",
-    value: "1,284",
-    color: "var(--ms-teal-400)",
-    trend: { direction: "up", text: "↑ +128 today" },
-  },
-  {
-    label: "Avg Response Time",
-    value: "2.4s",
-    color: "var(--ms-purple-400)",
-    trend: { direction: "down", text: "↓ -0.3s improved" },
-  },
-  {
-    label: "Token Usage",
-    value: "3.2M",
-    color: "var(--ms-amber-400)",
-    trend: { direction: "neutral", text: "78% of budget" },
-  },
-  {
-    label: "Error Rate",
-    value: "0.4%",
-    color: "var(--ms-red-400)",
-    trend: { direction: "down", text: "↓ -0.1% improved" },
-  },
-  {
-    label: "Active Projects",
-    value: "8",
-    color: "var(--ms-cyan-500)",
-    trend: { direction: "neutral", text: "2 deploying" },
-  },
+export interface DashboardMetricsProps {
+  metrics?: DashboardMetricsData | undefined;
+}
+
+function formatNumber(n: number): string {
+  return n.toLocaleString();
+}
+
+function buildCells(metrics: DashboardMetricsData): MetricCell[] {
+  return [
+    {
+      label: "Active Agents",
+      value: formatNumber(metrics.activeAgents),
+      color: "var(--ms-blue-400)",
+      trend: { direction: "neutral", text: "currently active" },
+    },
+    {
+      label: "Tasks Completed",
+      value: formatNumber(metrics.tasksCompleted),
+      color: "var(--ms-teal-400)",
+      trend: { direction: "neutral", text: `of ${formatNumber(metrics.totalTasks)} total` },
+    },
+    {
+      label: "Total Tasks",
+      value: formatNumber(metrics.totalTasks),
+      color: "var(--ms-purple-400)",
+      trend: { direction: "neutral", text: "across workspace" },
+    },
+    {
+      label: "In Progress",
+      value: formatNumber(metrics.tasksInProgress),
+      color: "var(--ms-amber-400)",
+      trend: { direction: "neutral", text: "tasks running" },
+    },
+    {
+      label: "Error Rate",
+      value: `${String(metrics.errorRate)}%`,
+      color: "var(--ms-red-400)",
+      trend: {
+        direction: metrics.errorRate > 1 ? "up" : "down",
+        text: metrics.errorRate > 1 ? "above threshold" : "within threshold",
+      },
+    },
+    {
+      label: "Active Projects",
+      value: formatNumber(metrics.activeProjects),
+      color: "var(--ms-cyan-500)",
+      trend: { direction: "neutral", text: "in workspace" },
+    },
+  ];
+}
+
+const EMPTY_CELLS: MetricCell[] = [
+  { label: "Active Agents", value: "0", color: "var(--ms-blue-400)" },
+  { label: "Tasks Completed", value: "0", color: "var(--ms-teal-400)" },
+  { label: "Total Tasks", value: "0", color: "var(--ms-purple-400)" },
+  { label: "In Progress", value: "0", color: "var(--ms-amber-400)" },
+  { label: "Error Rate", value: "0%", color: "var(--ms-red-400)" },
+  { label: "Active Projects", value: "0", color: "var(--ms-cyan-500)" },
 ];
 
-export function DashboardMetrics(): ReactElement {
+export function DashboardMetrics({ metrics }: DashboardMetricsProps): ReactElement {
+  const cells = metrics ? buildCells(metrics) : EMPTY_CELLS;
   return <MetricsStrip cells={cells} />;
 }

apps/web/src/components/dashboard/OrchestratorSessions.tsx

@@ -3,6 +3,22 @@
 import { useState } from "react";
 import type { ReactElement } from "react";
 import { Card, SectionHeader, Badge, Dot } from "@mosaic/ui";
+import type { ActiveJob } from "@/lib/api/dashboard";
+
+/* ------------------------------------------------------------------ */
+/*  Internal display types                                             */
+/* ------------------------------------------------------------------ */
+
+type DotVariant = "teal" | "blue" | "amber" | "red" | "muted";
+
+type BadgeVariant =
+  | "badge-teal"
+  | "badge-amber"
+  | "badge-red"
+  | "badge-blue"
+  | "badge-muted"
+  | "badge-purple"
+  | "badge-pulse";
 
 interface AgentNode {
   id: string;
@@ -10,7 +26,7 @@ interface AgentNode {
   avatarColor: string;
   name: string;
   task: string;
-  status: "teal" | "blue" | "amber" | "red" | "muted";
+  status: DotVariant;
 }
 
 interface OrchestratorSession {
@@ -18,73 +34,94 @@ interface OrchestratorSession {
   orchId: string;
   name: string;
   badge: string;
-  badgeVariant:
-    | "badge-teal"
-    | "badge-amber"
-    | "badge-red"
-    | "badge-blue"
-    | "badge-muted"
-    | "badge-purple"
-    | "badge-pulse";
+  badgeVariant: BadgeVariant;
   duration: string;
   agents: AgentNode[];
 }
 
-const sessions: OrchestratorSession[] = [
-  {
-    id: "s1",
-    orchId: "ORCH-001",
-    name: "infra-refactor",
-    badge: "running",
-    badgeVariant: "badge-teal",
-    duration: "2h 14m",
-    agents: [
-      {
-        id: "a1",
-        initials: "PL",
-        avatarColor: "rgba(47,128,255,0.15)",
-        name: "planner-agent",
-        task: "Analyzing network topology",
-        status: "blue",
-      },
-      {
-        id: "a2",
-        initials: "EX",
-        avatarColor: "rgba(20,184,166,0.15)",
-        name: "executor-agent",
-        task: "Applying Terraform modules",
-        status: "teal",
-      },
-      {
-        id: "a3",
-        initials: "QA",
-        avatarColor: "rgba(245,158,11,0.15)",
-        name: "reviewer-agent",
-        task: "Waiting for executor output",
-        status: "amber",
-      },
-    ],
-  },
-  {
-    id: "s2",
-    orchId: "ORCH-002",
-    name: "api-v3-migration",
-    badge: "running",
-    badgeVariant: "badge-teal",
-    duration: "45m",
-    agents: [
-      {
-        id: "a4",
-        initials: "MG",
-        avatarColor: "rgba(139,92,246,0.15)",
-        name: "migrator-agent",
-        task: "Rewriting endpoint handlers",
-        status: "blue",
-      },
-    ],
-  },
+export interface OrchestratorSessionsProps {
+  jobs?: ActiveJob[] | undefined;
+}
+
+/* ------------------------------------------------------------------ */
+/*  Mapping helpers                                                    */
+/* ------------------------------------------------------------------ */
+
+const STEP_COLORS: string[] = [
+  "rgba(47,128,255,0.15)",
+  "rgba(20,184,166,0.15)",
+  "rgba(245,158,11,0.15)",
+  "rgba(139,92,246,0.15)",
+  "rgba(229,72,77,0.15)",
 ];
 
+function statusToDotVariant(status: string): DotVariant {
+  const lower = status.toLowerCase();
+  if (lower === "running" || lower === "active" || lower === "completed") return "teal";
+  if (lower === "pending" || lower === "queued") return "blue";
+  if (lower === "waiting" || lower === "paused") return "amber";
+  if (lower === "failed" || lower === "error") return "red";
+  return "muted";
+}
+
+function statusToBadgeVariant(status: string): BadgeVariant {
+  const lower = status.toLowerCase();
+  if (lower === "running" || lower === "active") return "badge-teal";
+  if (lower === "pending" || lower === "queued") return "badge-blue";
+  if (lower === "waiting" || lower === "paused") return "badge-amber";
+  if (lower === "failed" || lower === "error") return "badge-red";
+  if (lower === "completed") return "badge-purple";
+  return "badge-muted";
+}
+
+function formatDuration(isoDate: string): string {
+  const now = Date.now();
+  const start = new Date(isoDate).getTime();
+  const diffMs = now - start;
+
+  if (Number.isNaN(diffMs) || diffMs < 0) return "0m";
+
+  const totalMinutes = Math.floor(diffMs / 60_000);
+  if (totalMinutes < 60) return `${String(totalMinutes)}m`;
+
+  const hours = Math.floor(totalMinutes / 60);
+  const minutes = totalMinutes % 60;
+  return `${String(hours)}h ${String(minutes)}m`;
+}
+
+function initials(name: string): string {
+  return name
+    .split(/[\s\-_]+/)
+    .slice(0, 2)
+    .map((w) => w.charAt(0).toUpperCase())
+    .join("");
+}
+
+function mapJobToSession(job: ActiveJob): OrchestratorSession {
+  const agents: AgentNode[] = job.steps.map((step, idx) => ({
+    id: step.id,
+    initials: initials(step.name),
+    avatarColor: STEP_COLORS[idx % STEP_COLORS.length] ?? "rgba(100,116,139,0.15)",
+    name: step.name,
+    task: `Phase: ${step.phase}`,
+    status: statusToDotVariant(step.status),
+  }));
+
+  return {
+    id: job.id,
+    orchId: job.id.length > 10 ? job.id.slice(0, 10).toUpperCase() : job.id.toUpperCase(),
+    name: job.type,
+    badge: job.status,
+    badgeVariant: statusToBadgeVariant(job.status),
+    duration: formatDuration(job.createdAt),
+    agents,
+  };
+}
+
+/* ------------------------------------------------------------------ */
+/*  Sub-components                                                     */
+/* ------------------------------------------------------------------ */
+
 interface AgentNodeItemProps {
   agent: AgentNode;
 }
@@ -182,7 +219,7 @@ function OrchCard({ session }: OrchCardProps): ReactElement {
           marginBottom: 10,
         }}
       >
-        <Dot variant="teal" />
+        <Dot variant={statusToDotVariant(session.badge)} />
         <span
           style={{
             fontFamily: "var(--mono)",
@@ -223,18 +260,48 @@ function OrchCard({ session }: OrchCardProps): ReactElement {
   );
 }
 
-export function OrchestratorSessions(): ReactElement {
+/* ------------------------------------------------------------------ */
+/*  Main export                                                        */
+/* ------------------------------------------------------------------ */
+
+export function OrchestratorSessions({ jobs }: OrchestratorSessionsProps): ReactElement {
+  const sessions = jobs ? jobs.map(mapJobToSession) : [];
+  const activeCount = jobs
+    ? jobs.filter(
+        (j) => j.status.toLowerCase() === "running" || j.status.toLowerCase() === "active"
+      ).length
+    : 0;
+
   return (
     <Card>
       <SectionHeader
         title="Active Orchestrator Sessions"
-        subtitle="3 of 8 projects running"
-        actions={<Badge variant="badge-teal">3 active</Badge>}
+        subtitle={
+          sessions.length > 0
+            ? `${String(activeCount)} of ${String(sessions.length)} jobs running`
+            : "No active sessions"
+        }
+        actions={
+          sessions.length > 0 ? (
+            <Badge variant="badge-teal">{String(activeCount)} active</Badge>
+          ) : undefined
+        }
       />
       <div>
-        {sessions.map((session) => (
-          <OrchCard key={session.id} session={session} />
-        ))}
+        {sessions.length > 0 ? (
+          sessions.map((session) => <OrchCard key={session.id} session={session} />)
+        ) : (
+          <div
+            style={{
+              padding: "24px 0",
+              textAlign: "center",
+              fontSize: "0.8rem",
+              color: "var(--muted)",
+            }}
+          >
+            No active sessions
+          </div>
+        )}
       </div>
     </Card>
   );

apps/web/src/components/dashboard/TokenBudget.tsx

@@ -1,7 +1,24 @@
 import type { ReactElement } from "react";
 import { Card, SectionHeader, ProgressBar, type ProgressBarVariant } from "@mosaic/ui";
+import type { TokenBudgetEntry } from "@/lib/api/dashboard";
 
-interface ModelBudget {
+export interface TokenBudgetProps {
+  budgets?: TokenBudgetEntry[] | undefined;
+}
+
+/* ------------------------------------------------------------------ */
+/*  Helpers                                                            */
+/* ------------------------------------------------------------------ */
+
+const VARIANT_CYCLE: ProgressBarVariant[] = ["blue", "teal", "purple", "amber"];
+
+function formatTokenCount(n: number): string {
+  if (n >= 1_000_000) return `${(n / 1_000_000).toFixed(1)}M`;
+  if (n >= 1_000) return `${(n / 1_000).toFixed(0)}K`;
+  return String(n);
+}
+
+interface ModelBudgetDisplay {
   id: string;
   label: string;
   usage: string;
@@ -9,39 +26,28 @@ interface ModelBudget {
   variant: ProgressBarVariant;
 }
 
-const models: ModelBudget[] = [
-  {
-    id: "sonnet",
-    label: "claude-3-5-sonnet",
-    usage: "2.1M / 3M",
-    value: 70,
-    variant: "blue",
-  },
-  {
-    id: "haiku",
-    label: "claude-3-haiku",
-    usage: "890K / 5M",
-    value: 18,
-    variant: "teal",
-  },
-  {
-    id: "gpt4o",
-    label: "gpt-4o",
-    usage: "320K / 1M",
-    value: 32,
-    variant: "purple",
-  },
-  {
-    id: "llama",
-    label: "local/llama-3.3",
-    usage: "unlimited",
-    value: 55,
-    variant: "amber",
-  },
-];
+function mapBudgetToDisplay(entry: TokenBudgetEntry, index: number): ModelBudgetDisplay {
+  const percent = entry.limit > 0 ? Math.round((entry.used / entry.limit) * 100) : 0;
+  const usage =
+    entry.limit > 0
+      ? `${formatTokenCount(entry.used)} / ${formatTokenCount(entry.limit)}`
+      : "unlimited";
+
+  return {
+    id: entry.model,
+    label: entry.model,
+    usage,
+    value: percent,
+    variant: VARIANT_CYCLE[index % VARIANT_CYCLE.length] ?? "blue",
+  };
+}
+
+/* ------------------------------------------------------------------ */
+/*  Components                                                         */
+/* ------------------------------------------------------------------ */
 
 interface ModelRowProps {
-  model: ModelBudget;
+  model: ModelBudgetDisplay;
 }
 
 function ModelRow({ model }: ModelRowProps): ReactElement {
@@ -84,14 +90,27 @@ function ModelRow({ model }: ModelRowProps): ReactElement {
   );
 }
 
-export function TokenBudget(): ReactElement {
+export function TokenBudget({ budgets }: TokenBudgetProps): ReactElement {
+  const displayModels = budgets ? budgets.map(mapBudgetToDisplay) : [];
+
   return (
     <Card>
       <SectionHeader title="Token Budget" subtitle="Usage by model" />
       <div>
-        {models.map((model) => (
-          <ModelRow key={model.id} model={model} />
-        ))}
+        {displayModels.length > 0 ? (
+          displayModels.map((model) => <ModelRow key={model.id} model={model} />)
+        ) : (
+          <div
+            style={{
+              padding: "24px 0",
+              textAlign: "center",
+              fontSize: "0.8rem",
+              color: "var(--muted)",
+            }}
+          >
+            No budget data
+          </div>
+        )}
       </div>
     </Card>
   );

apps/web/src/lib/api/dashboard.ts

@@ -0,0 +1,74 @@
+/**
+ * Dashboard API Client
+ * Handles dashboard summary data fetching
+ */
+
+import { apiGet } from "./client";
+
+/* ------------------------------------------------------------------ */
+/*  Type definitions matching backend DashboardSummaryDto              */
+/* ------------------------------------------------------------------ */
+
+export interface DashboardMetrics {
+  activeAgents: number;
+  tasksCompleted: number;
+  totalTasks: number;
+  tasksInProgress: number;
+  activeProjects: number;
+  errorRate: number;
+}
+
+export interface RecentActivity {
+  id: string;
+  action: string;
+  entityType: string;
+  entityId: string;
+  details: unknown;
+  userId: string;
+  createdAt: string;
+}
+
+export interface ActiveJobStep {
+  id: string;
+  name: string;
+  status: string;
+  phase: string;
+}
+
+export interface ActiveJob {
+  id: string;
+  type: string;
+  status: string;
+  progressPercent: number;
+  createdAt: string;
+  updatedAt: string;
+  steps: ActiveJobStep[];
+}
+
+export interface TokenBudgetEntry {
+  model: string;
+  used: number;
+  limit: number;
+}
+
+export interface DashboardSummaryResponse {
+  metrics: DashboardMetrics;
+  recentActivity: RecentActivity[];
+  activeJobs: ActiveJob[];
+  tokenBudget: TokenBudgetEntry[];
+}
+
+/* ------------------------------------------------------------------ */
+/*  API function                                                       */
+/* ------------------------------------------------------------------ */
+
+/**
+ * Fetch dashboard summary data for the given workspace.
+ *
+ * @param workspaceId - Optional workspace ID sent via X-Workspace-Id header
+ */
+export async function fetchDashboardSummary(
+  workspaceId?: string
+): Promise<DashboardSummaryResponse> {
+  return apiGet<DashboardSummaryResponse>("/api/dashboard/summary", workspaceId ?? undefined);
+}

apps/web/src/lib/api/index.ts

@@ -13,3 +13,4 @@ export * from "./domains";
 export * from "./teams";
 export * from "./personalities";
 export * from "./telemetry";
+export * from "./dashboard";