Write English navigation and insights chip labels in sentence case

Settings, admin and main navigation read "Data & privacy", "Export &
import", "Health score", "API & tokens", "MCP connector", "System
status", "Danger zone" and "Admin console", and the insights metric
chips drop their title case ("Blood pressure", "Body fat" and the rest),
matching the labels around them. The other locales already followed
their own conventions; the API page title is translated where it had
been left in English.

messages/en.json

@@ -392,7 +392,7 @@
     "insights": "Insights",
     "achievements": "Achievements",
     "settings": "Settings",
-    "admin": "Admin Console",
+    "admin": "Admin console",
     "logout": "Sign out",
     "login": "Sign in",
     "notifications": "Notifications",
@@ -3279,7 +3279,7 @@
     "relativeDaysAgoFew": "{count} days ago",
     "navOverview": "Overview",
     "navCatalog": "All metrics",
-    "navBloodPressure": "Blood Pressure",
+    "navBloodPressure": "Blood pressure",
     "navWeight": "Weight",
     "navPulse": "Pulse",
     "navMood": "Mood",
@@ -3814,7 +3814,7 @@
         "description": "Body-water readings appear here once a connected body-composition scale syncs."
       }
     },
-    "navTotalBodyWater": "Body Water",
+    "navTotalBodyWater": "Body water",
     "boneMass": {
       "title": "Bone Mass",
       "description": "Your bone mass over time, in kilograms.",
@@ -3824,7 +3824,7 @@
         "description": "Bone-mass readings appear here once a connected body-composition scale syncs."
       }
     },
-    "navBoneMass": "Bone Mass",
+    "navBoneMass": "Bone mass",
     "flightsClimbed": {
       "title": "Flights Climbed",
       "description": "Flights of stairs you climbed each day.",
@@ -3854,7 +3854,7 @@
         "description": "Fat-free-mass readings appear here once a connected body-composition scale syncs."
       }
     },
-    "navFatFreeMass": "Fat-Free Mass",
+    "navFatFreeMass": "Fat-free mass",
     "fatMass": {
       "title": "Fat Mass",
       "description": "Your fat mass over time, in kilograms.",
@@ -3874,8 +3874,8 @@
         "cta": "Log body fat"
       }
     },
-    "navFatMass": "Fat Mass",
-    "navBodyFat": "Body Fat",
+    "navFatMass": "Fat mass",
+    "navBodyFat": "Body fat",
     "muscleMass": {
       "title": "Muscle Mass",
       "description": "Your muscle mass over time, in kilograms.",
@@ -3885,7 +3885,7 @@
         "description": "Muscle-mass readings appear here once a connected body-composition scale syncs."
       }
     },
-    "navMuscleMass": "Muscle Mass",
+    "navMuscleMass": "Muscle mass",
     "skinTemperature": {
       "title": "Skin Temperature",
       "description": "Your wrist skin temperature over time, in degrees Celsius.",
@@ -3895,7 +3895,7 @@
         "description": "Skin-temperature readings appear here once a wearable syncs overnight wrist temperature."
       }
     },
-    "navSkinTemperature": "Skin Temp",
+    "navSkinTemperature": "Skin temp",
     "pulseWaveVelocity": {
       "title": "Pulse Wave Velocity",
       "description": "Your arterial pulse-wave velocity over time, in m/s — higher values suggest stiffer arteries.",
@@ -3905,7 +3905,7 @@
         "description": "Pulse-wave-velocity readings appear here once a compatible Withings device syncs."
       }
     },
-    "navPulseWaveVelocity": "Pulse Wave Velocity",
+    "navPulseWaveVelocity": "Pulse wave velocity",
     "vascularAge": {
       "title": "Vascular Age",
       "description": "Your estimated vascular age over time, in years.",
@@ -3915,7 +3915,7 @@
         "description": "Vascular-age estimates appear here once a compatible Withings device syncs."
       }
     },
-    "navVascularAge": "Vascular Age",
+    "navVascularAge": "Vascular age",
     "visceralFat": {
       "title": "Visceral Fat",
       "description": "Your visceral-fat rating over time.",
@@ -3925,7 +3925,7 @@
         "description": "Visceral-fat ratings appear here once a compatible body-composition scale syncs."
       }
     },
-    "navVisceralFat": "Visceral Fat",
+    "navVisceralFat": "Visceral fat",
     "audioExposureEnv": {
       "title": "Environmental Audio",
       "description": "Your daily average environmental sound exposure, in dBA.",
@@ -3935,7 +3935,7 @@
         "description": "Environmental sound-level readings appear here once Apple Health syncs."
       }
     },
-    "navAudioExposureEnv": "Environmental Audio",
+    "navAudioExposureEnv": "Environmental audio",
     "audioExposureHeadphone": {
       "title": "Headphone Audio",
       "description": "Your daily average headphone audio exposure, in dBA.",
@@ -3945,7 +3945,7 @@
         "description": "Headphone audio-level readings appear here once Apple Health syncs."
       }
     },
-    "navAudioExposureHeadphone": "Headphone Audio",
+    "navAudioExposureHeadphone": "Headphone audio",
     "timeInDaylight": {
       "title": "Time in Daylight",
       "description": "Minutes spent in daylight each day.",
@@ -3965,7 +3965,7 @@
         "description": "Walking-steadiness readings appear here once Apple Health syncs."
       }
     },
-    "navWalkingSteadiness": "Walking Steadiness",
+    "navWalkingSteadiness": "Walking steadiness",
     "audioExposureEvent": {
       "title": "Loud Audio Events",
       "description": "Days with a loud-environment exposure event.",
@@ -3975,7 +3975,7 @@
         "description": "Loud-environment events appear here once Apple Health syncs."
       }
     },
-    "navAudioExposureEvent": "Loud Events",
+    "navAudioExposureEvent": "Loud events",
     "respiratoryRate": {
       "title": "Respiratory Rate",
       "description": "Your respiratory rate over time, in breaths per minute.",
@@ -3985,7 +3985,7 @@
         "description": "Respiratory-rate readings appear here once Apple Health syncs sleep or workout breathing."
       }
     },
-    "navRespiratoryRate": "Respiratory Rate",
+    "navRespiratoryRate": "Respiratory rate",
     "leanBodyMass": {
       "title": "Lean Body Mass",
       "description": "Your lean body mass over time, in kilograms.",
@@ -3995,7 +3995,7 @@
         "description": "Lean-body-mass readings appear here once a connected body-composition scale syncs."
       }
     },
-    "navLeanBodyMass": "Lean Body Mass",
+    "navLeanBodyMass": "Lean body mass",
     "walkingHeartRateAverage": {
       "title": "Walking Heart Rate",
       "description": "Your average heart rate while walking, in bpm.",
@@ -4005,7 +4005,7 @@
         "description": "Walking-heart-rate readings appear here once Apple Health syncs."
       }
     },
-    "navWalkingHeartRateAverage": "Walking Heart Rate",
+    "navWalkingHeartRateAverage": "Walking heart rate",
     "walkingAsymmetry": {
       "title": "Walking Asymmetry",
       "description": "Your walking asymmetry over time, as a percentage.",
@@ -4015,7 +4015,7 @@
         "description": "Walking-asymmetry readings appear here once Apple Health syncs."
       }
     },
-    "navWalkingAsymmetry": "Walking Asymmetry",
+    "navWalkingAsymmetry": "Walking asymmetry",
     "walkingDoubleSupport": {
       "title": "Double Support Time",
       "description": "The percentage of each stride spent with both feet on the ground.",
@@ -4025,7 +4025,7 @@
         "description": "Double-support readings appear here once Apple Health syncs."
       }
     },
-    "navWalkingDoubleSupport": "Double Support",
+    "navWalkingDoubleSupport": "Double support",
     "walkingStepLength": {
       "title": "Walking Step Length",
       "description": "Your average walking step length over time, in metres.",
@@ -4035,7 +4035,7 @@
         "description": "Step-length readings appear here once Apple Health syncs."
       }
     },
-    "navWalkingStepLength": "Step Length",
+    "navWalkingStepLength": "Step length",
     "walkingSpeed": {
       "title": "Walking Speed",
       "description": "Your average walking speed over time, in km/h.",
@@ -4045,7 +4045,7 @@
         "description": "Walking-speed readings appear here once Apple Health syncs."
       }
     },
-    "navWalkingSpeed": "Walking Speed",
+    "navWalkingSpeed": "Walking speed",
     "mood": {
       "logLink": "Log a mood entry",
       "heatmapTitle": "Mood calendar",
@@ -4426,7 +4426,7 @@
         "description": "VO₂ max readings appear here once Apple Health syncs from your workouts."
       }
     },
-    "navCardioFitness": "Cardio Fitness",
+    "navCardioFitness": "Cardio fitness",
     "cardioRecovery": {
       "title": "Cardio Recovery",
       "description": "How far your heart rate drops one minute after peak exercise.",
@@ -4436,7 +4436,7 @@
         "description": "Cardio-recovery readings appear here once Apple Health syncs from a workout."
       }
     },
-    "navCardioRecovery": "Cardio Recovery",
+    "navCardioRecovery": "Cardio recovery",
     "wristTemperature": {
       "title": "Wrist Temperature",
       "description": "Your overnight wrist temperature, tracked against your own baseline.",
@@ -4446,7 +4446,7 @@
         "description": "Wrist-temperature readings appear here once Apple Health syncs overnight wear."
       }
     },
-    "navWristTemperature": "Wrist Temp",
+    "navWristTemperature": "Wrist temp",
     "falls": {
       "title": "Falls",
       "description": "Hard falls your Apple Watch detected, counted per day.",
@@ -4466,7 +4466,7 @@
         "description": "Six-minute-walk estimates appear here once Apple Health syncs."
       }
     },
-    "navSixMinuteWalk": "6-Min Walk",
+    "navSixMinuteWalk": "6-min walk",
     "stairAscentSpeed": {
       "title": "Stair Ascent Speed",
       "description": "How fast you climb stairs, measured by your iPhone or Watch.",
@@ -4476,7 +4476,7 @@
         "description": "Stair-ascent-speed readings appear here once Apple Health syncs."
       }
     },
-    "navStairAscentSpeed": "Stair Ascent",
+    "navStairAscentSpeed": "Stair ascent",
     "stairDescentSpeed": {
       "title": "Stair Descent Speed",
       "description": "How fast you go down stairs, measured by your iPhone or Watch.",
@@ -4486,7 +4486,7 @@
         "description": "Stair-descent-speed readings appear here once Apple Health syncs."
       }
     },
-    "navStairDescentSpeed": "Stair Descent",
+    "navStairDescentSpeed": "Stair descent",
     "breathingDisturbances": {
       "title": "Breathing Disturbances",
       "description": "How often your breathing was disturbed during sleep.",
@@ -5469,7 +5469,7 @@
         "subtitle": "Choose your AI provider and bring your own key."
       },
       "api": {
-        "title": "API & Tokens",
+        "title": "API & tokens",
         "description": "Bearer tokens for your own scripts and apps — log measurements or medication intake from anywhere.",
         "subtitle": "Manage API endpoints and access tokens."
       },
@@ -5479,7 +5479,7 @@
         "subtitle": "Data reset and account deletion."
       },
       "export": {
-        "title": "Export & Import",
+        "title": "Export & import",
         "description": "Download your data as CSV or a full JSON backup — or import from Apple Health, JSON, or CSV. The doctor report now lives under Health Record.",
         "otherOptionsHeading": "Other export options",
         "downloadFailed": "Couldn't download the export. Please try again.",
@@ -5778,12 +5778,12 @@
         "subtitle": "Two-factor authentication, recovery codes, and passkeys."
       },
       "privacy": {
-        "title": "Data & Privacy",
+        "title": "Data & privacy",
         "subtitle": "Your data, retention, encryption, and account security in one place.",
         "description": "Export, deletion, retention, encryption status, sessions, and security activity."
       },
       "mcp": {
-        "title": "MCP Connector",
+        "title": "MCP connector",
         "subtitle": "Connect an external assistant to your own health data."
       },
       "anamnesis": {
@@ -5848,7 +5848,7 @@
         }
       },
       "score": {
-        "title": "Health Score",
+        "title": "Health score",
         "subtitle": "Choose which pillars count toward your score.",
         "card": {
           "title": "What counts toward your score",
@@ -7564,7 +7564,7 @@
     },
     "section": {
       "system-status": {
-        "title": "System Status",
+        "title": "System status",
         "subtitle": "Worker, database, and integration health at a glance."
       },
       "general": {
@@ -7610,7 +7610,7 @@
         "subtitle": "Mint, track, and revoke registration invite links."
       },
       "api-tokens": {
-        "title": "API Tokens",
+        "title": "API tokens",
         "subtitle": "Active bearer tokens issued to native clients and integrations."
       },
       "login-overview": {
@@ -7830,7 +7830,7 @@
         "restoreSkippedVaccinationCiphertext": "Vaccination note sealed with a key this server does not hold (dose kept without it)"
       },
       "danger-zone": {
-        "title": "Danger Zone",
+        "title": "Danger zone",
         "subtitle": "Destructive system-wide operations."
       },
       "about": {

messages/es.json

@@ -5469,7 +5469,7 @@
         "subtitle": "Elige tu proveedor de IA y usa tu propia clave."
       },
       "api": {
-        "title": "API & Tokens",
+        "title": "API y tokens",
         "description": "Tokens Bearer para tus propios scripts y apps — registra mediciones o tomas de medicación desde cualquier lugar.",
         "subtitle": "Gestiona los endpoints de la API y los tokens de acceso."
       },

messages/fr.json

@@ -5469,7 +5469,7 @@
         "subtitle": "Choisissez votre fournisseur d'IA et utilisez votre propre clé."
       },
       "api": {
-        "title": "API & Tokens",
+        "title": "API et jetons",
         "description": "Jetons Bearer pour vos propres scripts et applis — enregistrez des mesures ou des prises de médicaments depuis n’importe où.",
         "subtitle": "Gérez les points d'accès API et les jetons d'accès."
       },

messages/it.json

@@ -5469,7 +5469,7 @@
         "subtitle": "Scegli il tuo provider IA e usa la tua chiave."
       },
       "api": {
-        "title": "API & Tokens",
+        "title": "API e token",
         "description": "Token Bearer per i tuoi script e le tue app — registra misurazioni o assunzioni di farmaci da ovunque.",
         "subtitle": "Gestisci gli endpoint API e i token di accesso."
       },

messages/pl.json

@@ -5469,7 +5469,7 @@
         "subtitle": "Wybierz dostawcę AI i użyj własnego klucza."
       },
       "api": {
-        "title": "API & Tokens",
+        "title": "API i tokeny",
         "description": "Tokeny Bearer dla własnych skryptów i aplikacji — zapisuj pomiary lub przyjęcia leków z dowolnego miejsca.",
         "subtitle": "Zarządzaj punktami końcowymi API i tokenami dostępu."
       },

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

@@ -50,7 +50,7 @@ describe("<InsightsTabStrip> — availability gating (v1.4.27 F19)", () => {
     // only Overview, then pills light up as data arrives.
     const html = render(<InsightsTabStrip />);
     expect(html).toContain(">Overview<");
-    expect(html).not.toContain(">Blood Pressure<");
+    expect(html).not.toContain(">Blood pressure<");
     expect(html).not.toContain(">Weight<");
     expect(html).not.toContain(">Pulse<");
     expect(html).not.toContain(">Mood<");
@@ -75,7 +75,7 @@ describe("<InsightsTabStrip> — availability gating (v1.4.27 F19)", () => {
     expect(html).toContain(">Weight<");
     expect(html).toContain('data-group="body"');
     // Pills without data drop.
-    expect(html).not.toContain(">Blood Pressure<");
+    expect(html).not.toContain(">Blood pressure<");
     expect(html).not.toContain(">Mood<");
     expect(html).not.toContain(">Medication<");
     expect(html).not.toContain(">Sleep<");
@@ -234,7 +234,7 @@ describe("<InsightsTabStrip> — vitals group collapse (v1.4.34 IW-D)", () => {
   it("preserves the pinned flat pills inline", () => {
     const html = render(<InsightsTabStrip availability={fullAvailability} />);
     // Pinned pills must still be reachable directly.
-    expect(html).toContain(">Blood Pressure<");
+    expect(html).toContain(">Blood pressure<");
     expect(html).toContain(">Weight<");
     expect(html).toContain(">Sleep<");
     expect(html).toContain(">Mood<");
@@ -361,7 +361,7 @@ describe("<InsightsTabStrip> — saved-layout visibility gate (v1.15.14 W2)", ()
         visibleTileIds={visibleTileIds}
       />,
     );
-    expect(html).not.toContain(">Blood Pressure<");
+    expect(html).not.toContain(">Blood pressure<");
     expect(html).toContain(">Weight<");
   });
 

src/components/settings/__tests__/export-section.test.tsx

@@ -63,7 +63,7 @@ describe("<ExportSection> — SSR smoke", () => {
       </SettingsSectionFrame>,
     );
     // v1.15.7 — the section was relabelled "Export & Import" (issue #281).
-    expect(html).toContain("Export &amp; Import");
+    expect(html).toContain("Export &amp; import");
     // Raw key never leaks past i18n.
     expect(html).not.toContain("settings.sections.export.");
   });

src/components/settings/__tests__/sections.test.tsx

@@ -258,7 +258,7 @@ describe("settings sections — SSR smoke", () => {
 
   it("<ApiSection> renders endpoints + tokens cards", () => {
     const html = renderFramed("api", <ApiSection />);
-    expect(html).toContain("API &amp; Tokens");
+    expect(html).toContain("API &amp; tokens");
   });
 
   it("<AdvancedSection> renders the danger-zone card only (export moved to /settings/export)", () => {

src/components/settings/__tests__/settings-shell.test.tsx

@@ -451,7 +451,7 @@ describe("<SettingsShell>", () => {
     expect(html).not.toContain('href="/settings/sharing"');
     // The ampersand is HTML-escaped by React SSR — assert on the encoded
     // form so we don't accidentally match a parser that double-escapes.
-    expect(html).toContain("API &amp; Tokens");
+    expect(html).toContain("API &amp; tokens");
     // v1.18.0 (S5) — the health record is its own top-level entry.
     expect(html).toContain('href="/settings/gesundheitsakte"');
     expect(html).toContain("Health record");
@@ -494,7 +494,7 @@ describe("<SettingsShell>", () => {
     // v1.18.6 (W9) — the AI section is named "KI-Anbieter" in German: the
     // page is about the provider / BYOK, not an "Auswertung".
     expect(html).toContain("KI-Anbieter");
-    // API & Tokens is identical in both locales (proper noun + ampersand)
+    // German keeps the noun capitalised: "API & Tokens".
     expect(html).toContain("API &amp; Tokens");
     expect(html).toContain("Erweitert");
     // "Über diese App" (About) is back as the last in-shell nav entry