refactor(nav): surface Recovery as an Insights tab instead of a left-nav item

Recovery is a composite wearable surface (WHOOP / Polar / Oura recovery,
strain, ANS charge, cardio load), not a top-level tracking destination.
It moves off the left nav and onto the Insights tab strip as a pill at
/insights/recovery. The pill is always present (like Overview) since the
page self-gates every block and falls back to a calm empty note rather
than carrying its own availability signal. Adds the insights.navRecovery
label across all six locales.

messages/de.json

@@ -2784,6 +2784,7 @@
       }
     },
     "navWorkouts": "Workouts",
+    "navRecovery": "Erholung",
     "workouts": {
       "title": "Workouts",
       "description": "Letzte Läufe, Touren, Spaziergänge und Krafteinheiten — quellenübergreifend entdoppelt zwischen Apple Watch und Withings.",

messages/en.json

@@ -2784,6 +2784,7 @@
       }
     },
     "navWorkouts": "Workouts",
+    "navRecovery": "Recovery",
     "workouts": {
       "title": "Workouts",
       "description": "Recent runs, rides, walks and strength sessions, deduped across Apple Watch and Withings sources.",

messages/es.json

@@ -2784,6 +2784,7 @@
       }
     },
     "navWorkouts": "Entrenamientos",
+    "navRecovery": "Recuperación",
     "workouts": {
       "title": "Entrenamientos",
       "description": "Carreras, salidas en bici, paseos y sesiones de fuerza recientes, deduplicados entre Apple Watch y Withings.",

messages/fr.json

@@ -2784,6 +2784,7 @@
       }
     },
     "navWorkouts": "Entraînements",
+    "navRecovery": "Récupération",
     "workouts": {
       "title": "Entraînements",
       "description": "Courses, sorties à vélo, marches et séances de musculation récentes, dédupliquées entre Apple Watch et Withings.",

messages/it.json

@@ -2784,6 +2784,7 @@
       }
     },
     "navWorkouts": "Allenamenti",
+    "navRecovery": "Recupero",
     "workouts": {
       "title": "Allenamenti",
       "description": "Corse, uscite in bici, camminate e sessioni di forza recenti, deduplicati tra Apple Watch e Withings.",

messages/pl.json

@@ -2784,6 +2784,7 @@
       }
     },
     "navWorkouts": "Treningi",
+    "navRecovery": "Regeneracja",
     "workouts": {
       "title": "Treningi",
       "description": "Ostatnie biegi, jazdy, marsze i treningi siłowe — zdeduplikowane między Apple Watch a Withings.",

src/components/insights/__tests__/insights-tab-strip.test.tsx

@@ -94,6 +94,25 @@ describe("<InsightsTabStrip> — availability gating (v1.4.27 F19)", () => {
     expect(html).toContain(">Overview<");
   });
 
+  it("always renders the Recovery pill (composite wearable surface, self-gated page)", () => {
+    // v1.18.0 — Recovery left the left-nav for an Insights pill. It is a
+    // composite WHOOP / Polar / Oura surface, not a single MeasurementType,
+    // so it has no `summaries[METRIC].count` to gate on; the page itself
+    // data-gates each block and falls back to a calm empty note, so the
+    // pill is always present (like Overview) regardless of availability.
+    const noAvailability = render(<InsightsTabStrip />);
+    expect(noAvailability).toContain(">Recovery<");
+    expect(noAvailability).toContain('href="/insights/recovery"');
+
+    const emptyAvailability: InsightInputs = {
+      summaries: {},
+      hasMood: false,
+      hasMedication: false,
+    };
+    const html = render(<InsightsTabStrip availability={emptyAvailability} />);
+    expect(html).toContain(">Recovery<");
+  });
+
   it("lights up Mood when hasMood flips to true", () => {
     const availability: InsightInputs = {
       summaries: {},

src/components/insights/insights-tab-strip.tsx

@@ -420,6 +420,18 @@ function buildTabs(
       href: INSIGHTS_OVERVIEW_PATH,
       labelKey: "insights.navOverview",
     },
+    // v1.18.0 — Recovery is an Insights pill, no longer a left-nav home.
+    // It is a composite wearable surface (WHOOP / Polar / Oura recovery,
+    // strain, ANS charge, cardio load), not a single MeasurementType, so
+    // it has no `summaries[METRIC].count` to gate on. The page itself
+    // data-gates every block and falls back to a calm empty note, so the
+    // pill is always present like Overview rather than carrying its own
+    // availability signal.
+    {
+      kind: "link",
+      href: `${INSIGHTS_OVERVIEW_PATH}/recovery`,
+      labelKey: "insights.navRecovery",
+    },
   ];
 
   // v1.4.34 IW-D — track which groups have already been emitted so the

src/components/layout/__tests__/nav-model.test.ts

@@ -53,11 +53,18 @@ describe("nav-model destination list", () => {
     expect(hrefs).toContain("/vorsorge");
     const vorsorge = NAV_DESTINATIONS.find((d) => d.href === "/vorsorge");
     expect(vorsorge?.tKey).toBe("nav.vorsorge");
-    // Peer to Labs / Recovery: sits in the clinical spine, before Insights.
+    // Peer to Labs: sits in the clinical spine, before Insights.
     expect(hrefs.indexOf("/labs")).toBeLessThan(hrefs.indexOf("/vorsorge"));
     expect(hrefs.indexOf("/vorsorge")).toBeLessThan(hrefs.indexOf("/insights"));
   });
 
+  it("does not list Recovery as a left-nav destination (it is an Insights pill)", () => {
+    // v1.18.0 — Recovery moved off the left nav and surfaces as an
+    // Insights tab-strip pill at `/insights/recovery` instead.
+    const hrefs = NAV_DESTINATIONS.map((d) => d.href);
+    expect(hrefs).not.toContain("/insights/recovery");
+  });
+
 });
 
 describe("nav-model utility tail (N-1 — one shared list)", () => {

src/components/layout/nav-model.ts

@@ -5,7 +5,6 @@ import {
   Droplets,
   Dumbbell,
   FlaskConical,
-  HeartPulse,
   Home,
   Lightbulb,
   MessagesSquare,
@@ -99,17 +98,9 @@ export const NAV_DESTINATIONS: ReadonlyArray<NavDestination> = [
     icon: Dumbbell,
     tourId: "nav-workouts",
   },
-  // v1.17.1 — the Recovery surface gets a nav home alongside Workouts. It
-  // hosts the WHOOP / Polar device-native recovery + strain scores that were
-  // stored end-to-end but had no page. Like Workouts it is shown to every
-  // account (the page itself data-gates each block, so a non-wearable user
-  // lands on a calm empty note rather than a broken surface).
-  {
-    href: "/insights/recovery",
-    tKey: "nav.recovery",
-    icon: HeartPulse,
-    tourId: "nav-recovery",
-  },
+  // v1.18.0 — Recovery left the left-nav: it surfaces as an Insights pill
+  // (`/insights/recovery`) rather than a top-level destination, so it no
+  // longer appears in `NAV_DESTINATIONS`.
   {
     href: "/insights",
     tKey: "nav.insights",