feat: analytics parity — tool cost, date ranges, budgets, query explorer, replay, snapshots (v2.4.0)

Analytics parity phases 2–7 (docs/plans/analytics-parity/), built on
138e706 and ported onto v2.3.1:
- Cost by AI tool (?tool= on cost/analytics/stats/workflows, by_tool,
  Codex fast/priority and flex tiers, agenthub_cost_usd_total{tool,model})
- Date ranges (from/to) on cost/analytics/workflows; Analytics range select
  with Today / This week (Monday) / This month (1st) / 7d / 30d / 90d / All /
  Custom; workflow filters carried into workflow-stats.js (read worker)
- Budgets and cost alerts as alert rule types (alert_rules rebuilt without
  its rule_type CHECK), GET /api/budgets/status, rule preview, spend pace,
  status-bar budget chip; rules stay editable in place
- Query Explorer (/query, allowlisted sort, CSV/JSON export) and scheduled
  reports (report_definitions/report_runs, Settings → Reports)
- Session Replay tab and immutable snapshots (session_snapshots, /snapshot/:token)
- Remote Codex sync, push ingest with a hashed token, privacy redaction and
  ignored folders (Settings → Data), Cursor sessions (no cost)
- Read-only MCP server, statusline, Grafana/Prometheus files

Also: resizable sidebar, pet run/wave animations, the workspace home keeps a
half-typed prompt, and the pre-commit hook runs only the related tests for a
small commit.

client/src/pages/__tests__/screens.snapshot.test.tsx

@@ -318,6 +318,7 @@ vi.mock("../../lib/api", async (importOriginal) => {
         totalCost: r(cost),
         sessionCost: r(cost),
       },
+      budgets: { status: r({ budgets: [] }) },
       settings: {
         info: r(settingsInfo),
         claudeHome: {
@@ -328,6 +329,19 @@ vi.mock("../../lib/api", async (importOriginal) => {
         reimport: r({ ok: true, imported: 0, skipped: 0, errors: 0 }),
         reinstallHooks: r({ ok: true, hooks: { installed: true, hooks: {} } }),
         resetPricing: r({ ok: true, pricing: [] }),
+        pushToken: {
+          get: r({ enabled: false, env_owned: false }),
+          rotate: r({ token: "t", enabled: true, env_owned: false }),
+          revoke: r({ enabled: false, env_owned: false }),
+        },
+        privacy: {
+          get: r({
+            redact_secrets: false,
+            ignore_cwd: [],
+            env_owned: { redact_secrets: false, ignore_cwd: false },
+          }),
+          save: r({ ok: true }),
+        },
         exportData: () => "/api/settings/export",
         cleanup: r({
           ok: true,
@@ -483,6 +497,7 @@ vi.mock("../../lib/push", () => ({
 }));
 
 // Page components (imported after the mocks above; vi.mock is hoisted).
+import { api } from "../../lib/api";
 import { Dashboard } from "../Dashboard";
 import { Sessions } from "../Sessions";
 import { SessionDetail } from "../SessionDetail";
@@ -570,6 +585,19 @@ describe("screen snapshots", () => {
     const headings = [...container.querySelectorAll("h2")].map((h) => h.textContent);
     expect(headings).toContain(i18n.t("workflows:title"));
   });
+  it("Dashboard Analytics reads its date range from ?range=", async () => {
+    localStorage.removeItem("dashboard_tab");
+    render(
+      <MemoryRouter initialEntries={["/?tab=analytics&range=7d"]}>
+        <Dashboard />
+      </MemoryRouter>
+    );
+    await settle();
+    const range = { from: "2026-06-04", to: "2026-06-10" };
+    expect(api.analytics.get).toHaveBeenCalledWith({ tool: "", range });
+    expect(api.pricing.totalCost).toHaveBeenCalledWith({ tool: "", range });
+    expect(screen.getByRole("button", { name: /Date range/ })).toHaveTextContent("Last 7 days");
+  });
   it("Sessions", async () => {
     await snapshot(<Sessions />, "/sessions");
   });