fix(insights): point sleep empty-state CTA at a real settings slug

src/app/insights/sleep/__tests__/empty-state-href.test.ts

@@ -0,0 +1,35 @@
+/**
+ * v1.17.0 — the sleep empty-state CTA must point at a REAL settings slug.
+ * It previously linked to `/settings/data-sources`, which is not in
+ * `SETTINGS_SECTION_SLUGS`, so the dynamic `[section]` route calls
+ * `notFound()` → a 404 dead-end. This pins the href to the `integrations`
+ * slug and guards against a regression to any non-existent slug.
+ */
+import { readFileSync } from "node:fs";
+import { join } from "node:path";
+
+import { describe, expect, it } from "vitest";
+
+import { isSettingsSectionSlug } from "@/components/settings/section-slugs";
+
+describe("sleep empty-state CTA href", () => {
+  it("links to /settings/integrations (a real settings slug)", () => {
+    const source = readFileSync(
+      join(process.cwd(), "src/app/insights/sleep/page.tsx"),
+      "utf8",
+    );
+    const match = source.match(/href="\/settings\/([a-z-]+)"/);
+    expect(match, "expected a /settings/<slug> href in the sleep page").not.toBeNull();
+    const slug = match![1];
+    expect(slug).toBe("integrations");
+    expect(isSettingsSectionSlug(slug)).toBe(true);
+  });
+
+  it("never links to the removed /settings/data-sources slug", () => {
+    const source = readFileSync(
+      join(process.cwd(), "src/app/insights/sleep/page.tsx"),
+      "utf8",
+    );
+    expect(source).not.toContain("/settings/data-sources");
+  });
+});

src/app/insights/sleep/page.tsx

@@ -25,7 +25,7 @@ import { SubPageShell } from "@/components/insights/sub-page-shell";
  *
  * v1.4.27 F17 — when `summaries.SLEEP_DURATION.count === 0` (no
  * Apple-Health / Withings sleep rows yet), the page short-circuits
- * to an empty-state CTA pointing at `/settings/data-sources` so the
+ * to an empty-state CTA pointing at `/settings/integrations` so the
  * user can connect a sleep source.
  *
  * v1.4.28 R3d (BK-F-H1 + BK-F-M1) — analytics fetch + empty-state
@@ -50,7 +50,7 @@ export default function InsightsSchlafPage() {
           description={t("insights.emptyState.sleep.description")}
           cta={
             <Button size="sm" asChild>
-              <Link href="/settings/data-sources">
+              <Link href="/settings/integrations">
                 {t("insights.emptyState.sleep.cta")}
               </Link>
             </Button>