feat(coach): Apple Health metric slots + PROMPT_VERSION 4.23.0

Extends the strict insight schema, Coach snapshot pipeline, and
provenance envelope with the seven Apple Health categories that landed
in Wave 2 (HRV, sleep, resting HR, steps, active energy, flights,
distance, VO2 max, body temperature). All fields are additive and
optional — web-only accounts pay zero extra SQL and the prompt's new
GROUND RULE 12 instructs the model to stay silent when the snapshot
doesn't carry the HealthKit blocks.

Ratchets PROMPT_VERSION 4.22.0 → 4.23.0 and refreshes the
sourceMetric / trendAnnotations enums in both EN + DE. Two new test
files pin the prompt body and the snapshot fan-out.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/insights/coach-panel/source-chips.tsx

@@ -31,6 +31,20 @@ const METRIC_KEYS: Record<CoachProvenance["metrics"][number], string> = {
   mood: "insights.coach.metric.mood",
   compliance: "insights.coach.metric.compliance",
   general: "insights.coach.metric.general",
+  // ── v1.4.23 Apple Health additive ──
+  // Optional metric tags surfaced when the iOS app's HealthKit snapshot
+  // contains the matching block. The translation keys follow the same
+  // `insights.coach.metric.<token>` namespace and fall back to the raw
+  // token when a new metric ships before the locale files catch up.
+  hrv: "insights.coach.metric.hrv",
+  sleep: "insights.coach.metric.sleep",
+  resting_hr: "insights.coach.metric.resting_hr",
+  steps: "insights.coach.metric.steps",
+  active_energy: "insights.coach.metric.active_energy",
+  flights: "insights.coach.metric.flights",
+  distance: "insights.coach.metric.distance",
+  vo2_max: "insights.coach.metric.vo2_max",
+  body_temp: "insights.coach.metric.body_temp",
 };
 
 const WINDOW_KEYS: Record<CoachProvenance["windows"][number], string> = {

src/components/insights/daily-briefing.tsx

@@ -3,11 +3,20 @@
 import {
   Activity,
   FileText,
+  Flame,
+  Footprints,
   Heart,
+  HeartPulse,
+  Mountain,
+  Moon,
   Pill,
+  Route,
   Scale,
   Smile,
   Sparkles,
+  Thermometer,
+  Wind,
+  Zap,
 } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
@@ -63,6 +72,19 @@ const METRIC_ICON: Record<
   pulse: Activity,
   mood: Smile,
   compliance: Pill,
+  // ── v1.4.23 Apple Health additive ──
+  // Icon picks track the metric domain rather than the brand. Web-only
+  // accounts never receive findings keyed to these metrics, so the
+  // mapping is only exercised on iOS-connected snapshots.
+  hrv: Wind,
+  sleep: Moon,
+  resting_hr: HeartPulse,
+  steps: Footprints,
+  active_energy: Flame,
+  flights: Mountain,
+  distance: Route,
+  vo2_max: Zap,
+  body_temp: Thermometer,
 };
 
 const TONE_BAR_CLASSNAME: Record<DailyBriefingKeyFinding["tone"], string> = {