i18n: add Vitals parent + Targets & Sources keys across six locales

Two key additions land in every locale (de, en, es, fr, it, pl):

- `insights.tabStrip.vitalsParent.{label,header}` — the parent pill
  text and popover header for the collapsed wave-A vital pills.
- `settings.sections.thresholds.{title,description}` — renamed to
  "Targets & Sources" / "Zielwerte & Quellen" / "Objetivos y fuentes"
  / "Objectifs et sources" / "Obiettivi e fonti" / "Cele i źródła"
  (and matching descriptions).
- `settings.sections.sources.redirectNotice` — copy reserved for the
  back-compat redirect surface; reads "Sources are now part of
  'Targets & Sources'" in each locale.

The existing `settings.sections.sources.*` block stays in the
locale files because `<SourcesSection>` (now embedded inside the
Targets & Sources page) still resolves card-level labels through
those keys.

Per `.planning/research/v1434-r-2-carryover-scope.md` §7 + §8.

messages/de.json

@@ -1120,6 +1120,12 @@
     "navBodyTemperature": "Temperatur",
     "navActiveEnergy": "Aktive Energie",
     "navAriaLabel": "Zu Abschnitt springen",
+    "tabStrip": {
+      "vitalsParent": {
+        "label": "Vitalwerte",
+        "header": "Vital-Werte"
+      }
+    },
     "hrv": {
       "title": "HRV",
       "description": "Herzratenvariabilität im Verlauf — dein Erholungssignal des autonomen Nervensystems, nächtlich von Apple Watch und kompatiblen Wearables erfasst.",
@@ -1519,12 +1525,13 @@
         "description": "Kachel-Layout und Reihenfolge."
       },
       "thresholds": {
-        "title": "Persönliche Zielwerte",
-        "description": "Eigene Zielbereiche für jede Metrik."
+        "title": "Zielwerte & Quellen",
+        "description": "Pro Metrik: eigener Zielbereich und welche Quelle führt, wenn mehrere am selben Tag denselben Wert liefern."
       },
       "sources": {
         "title": "Quellen",
         "description": "Lege fest, welche Quelle führt, wenn mehrere am selben Tag dieselbe Metrik liefern.",
+        "redirectNotice": "Quellen sind jetzt Teil von „Zielwerte & Quellen“.",
         "cardTitle": "Quellen-Priorität pro Metrik",
         "help": "Wenn mehrere Quellen denselben Wert am selben Tag liefern (z. B. Withings + Apple Health beide 1.200 Schritte), wird die oberste Quelle als kanonisch verwendet. Andere Quellen bleiben gespeichert für die Audit-Spur.",
         "resetDefaults": "Auf Standard zurücksetzen",

messages/en.json

@@ -1120,6 +1120,12 @@
     "navBodyTemperature": "Temperature",
     "navActiveEnergy": "Active energy",
     "navAriaLabel": "Skip to section",
+    "tabStrip": {
+      "vitalsParent": {
+        "label": "Vitals",
+        "header": "Vital signs"
+      }
+    },
     "hrv": {
       "title": "HRV",
       "description": "Heart-rate variability over time — your nervous-system recovery signal, captured during sleep by Apple Watch and other compatible wearables.",
@@ -1519,12 +1525,13 @@
         "description": "Tile layout and order."
       },
       "thresholds": {
-        "title": "Personal thresholds",
-        "description": "Override target ranges for every metric."
+        "title": "Targets & Sources",
+        "description": "Per metric: your own target range and which source wins when more than one records the same value on the same day."
       },
       "sources": {
         "title": "Sources",
         "description": "Pick which ingest source wins when more than one records the same metric for the same day.",
+        "redirectNotice": "Sources are now part of “Targets & Sources”.",
         "cardTitle": "Source priority by metric",
         "help": "When more than one source delivers the same value on the same day (e.g. Withings and Apple Health both report 1,200 steps), the top source counts as the canonical reading. Other sources stay stored for the audit trail.",
         "resetDefaults": "Reset to defaults",

messages/es.json

@@ -1120,6 +1120,12 @@
     "navBodyTemperature": "Temperatura",
     "navActiveEnergy": "Energía activa",
     "navAriaLabel": "Skip to section",
+    "tabStrip": {
+      "vitalsParent": {
+        "label": "Vitales",
+        "header": "Constantes vitales"
+      }
+    },
     "hrv": {
       "title": "VFC",
       "description": "Variabilidad de la frecuencia cardíaca a lo largo del tiempo — señal de recuperación del sistema nervioso, captada por la noche por Apple Watch y otros wearables compatibles.",
@@ -1519,12 +1525,13 @@
         "description": "Tile layout and order."
       },
       "thresholds": {
-        "title": "Personal thresholds",
-        "description": "Override target ranges for every metric."
+        "title": "Objetivos y fuentes",
+        "description": "Por métrica: tu propio rango objetivo y qué fuente prevalece cuando varias registran el mismo valor el mismo día."
       },
       "sources": {
         "title": "Sources",
         "description": "Pick which ingest source wins when more than one records the same metric for the same day.",
+        "redirectNotice": "Las fuentes ahora forman parte de «Objetivos y fuentes».",
         "cardTitle": "Source priority by metric",
         "help": "When more than one source delivers the same value on the same day (e.g. Withings and Apple Health both report 1,200 steps), the top source counts as the canonical reading. Other sources stay stored for the audit trail.",
         "resetDefaults": "Reset to defaults",

messages/fr.json

@@ -1120,6 +1120,12 @@
     "navBodyTemperature": "Température",
     "navActiveEnergy": "Énergie active",
     "navAriaLabel": "Skip to section",
+    "tabStrip": {
+      "vitalsParent": {
+        "label": "Constantes",
+        "header": "Constantes vitales"
+      }
+    },
     "hrv": {
       "title": "VFC",
       "description": "Variabilité de la fréquence cardiaque dans le temps — signal de récupération du système nerveux, capté la nuit par l'Apple Watch et d'autres wearables compatibles.",
@@ -1519,12 +1525,13 @@
         "description": "Tile layout and order."
       },
       "thresholds": {
-        "title": "Personal thresholds",
-        "description": "Override target ranges for every metric."
+        "title": "Objectifs et sources",
+        "description": "Par métrique : votre propre plage cible et quelle source prévaut quand plusieurs enregistrent la même valeur le même jour."
       },
       "sources": {
         "title": "Sources",
         "description": "Pick which ingest source wins when more than one records the same metric for the same day.",
+        "redirectNotice": "Les sources font désormais partie de « Objectifs et sources ».",
         "cardTitle": "Source priority by metric",
         "help": "When more than one source delivers the same value on the same day (e.g. Withings and Apple Health both report 1,200 steps), the top source counts as the canonical reading. Other sources stay stored for the audit trail.",
         "resetDefaults": "Reset to defaults",

messages/it.json

@@ -1120,6 +1120,12 @@
     "navBodyTemperature": "Temperatura",
     "navActiveEnergy": "Energia attiva",
     "navAriaLabel": "Skip to section",
+    "tabStrip": {
+      "vitalsParent": {
+        "label": "Vitali",
+        "header": "Parametri vitali"
+      }
+    },
     "hrv": {
       "title": "HRV",
       "description": "Variabilità della frequenza cardiaca nel tempo — segnale di recupero del sistema nervoso, captato di notte da Apple Watch e altri wearable compatibili.",
@@ -1519,12 +1525,13 @@
         "description": "Tile layout and order."
       },
       "thresholds": {
-        "title": "Personal thresholds",
-        "description": "Override target ranges for every metric."
+        "title": "Obiettivi e fonti",
+        "description": "Per metrica: il tuo intervallo target e quale fonte prevale quando più di una registra lo stesso valore lo stesso giorno."
       },
       "sources": {
         "title": "Sources",
         "description": "Pick which ingest source wins when more than one records the same metric for the same day.",
+        "redirectNotice": "Le fonti ora fanno parte di «Obiettivi e fonti».",
         "cardTitle": "Source priority by metric",
         "help": "When more than one source delivers the same value on the same day (e.g. Withings and Apple Health both report 1,200 steps), the top source counts as the canonical reading. Other sources stay stored for the audit trail.",
         "resetDefaults": "Reset to defaults",

messages/pl.json

@@ -1120,6 +1120,12 @@
     "navBodyTemperature": "Temperatura",
     "navActiveEnergy": "Energia czynna",
     "navAriaLabel": "Skip to section",
+    "tabStrip": {
+      "vitalsParent": {
+        "label": "Witalne",
+        "header": "Parametry witalne"
+      }
+    },
     "hrv": {
       "title": "HRV",
       "description": "Zmienność rytmu serca w czasie — sygnał regeneracji układu nerwowego, rejestrowany nocą przez Apple Watch i inne zgodne wearable.",
@@ -1519,12 +1525,13 @@
         "description": "Tile layout and order."
       },
       "thresholds": {
-        "title": "Personal thresholds",
-        "description": "Override target ranges for every metric."
+        "title": "Cele i źródła",
+        "description": "Dla każdej metryki: własny zakres docelowy i które źródło wygrywa, gdy kilka rejestruje tę samą wartość tego samego dnia."
       },
       "sources": {
         "title": "Sources",
         "description": "Pick which ingest source wins when more than one records the same metric for the same day.",
+        "redirectNotice": "Źródła są teraz częścią „Cele i źródła”.",
         "cardTitle": "Source priority by metric",
         "help": "When more than one source delivers the same value on the same day (e.g. Withings and Apple Health both report 1,200 steps), the top source counts as the canonical reading. Other sources stay stored for the audit trail.",
         "resetDefaults": "Reset to defaults",