Turn the health score green at 70

The app carries three scores and meant two things by a green dot.
Readiness and the sleep score both call 70 green; the health score alone
wanted 75. One app cannot do that, so the outlier moved. The yellow floor
stays at 50: raising the bar for a reward and lowering the bar for a
warning are different decisions, and only the first one was on the table.

The band is still not a function of the number. The composite takes the
worse of the mean's band and the worst counted pillar's, so a composite
carrying a red pillar stays red however high the mean sits - the stored
band on a recorded day exists for exactly that reason. Only the mean-side
thresholds moved.

The method version moves with it. A day already recorded keeps the band
it was actually shown under, and the notice key carries the version, so
each account is told once that the rules moved. The week-over-week
comparison is left alone on purpose: the number itself does not change,
only the colour it is drawn in, so a subtraction across the change still
compares two numbers worked out the same way.

src/components/insights/__tests__/health-score-card-geometry.test.tsx

@@ -9,6 +9,7 @@ import type {
   HealthScoreReport,
   ScorePillarResult,
 } from "@/lib/analytics/score/types";
+import { SCORE_VERSION } from "@/lib/analytics/score/types";
 import { HeroStrip } from "../hero-strip";
 
 /**
@@ -148,7 +149,7 @@ function reportWith(pillars: ScorePillarResult[]): HealthScoreReport {
         composition: pillars.map((p) => p.id),
         configured: false,
         noiseFloor: 3,
-        scoreVersion: 2,
+        scoreVersion: SCORE_VERSION,
       },
       coverage,
       confidence: { score: 100, band: "high" },
@@ -157,7 +158,7 @@ function reportWith(pillars: ScorePillarResult[]): HealthScoreReport {
     pillars,
     delta: 2,
     deltaReason: null,
-    scoreVersion: 2,
+    scoreVersion: SCORE_VERSION,
     weightGoal: {
       status: "insufficient",
       coverage: {

src/components/insights/__tests__/health-score-card.test.tsx

@@ -7,6 +7,7 @@ import type {
   HealthScoreReport,
   ScorePillarResult,
 } from "@/lib/analytics/score/types";
+import { SCORE_VERSION } from "@/lib/analytics/score/types";
 import {
   HealthScoreCard,
   HealthScoreCardSkeleton,
@@ -211,7 +212,7 @@ function report(overrides: Partial<HealthScoreReport> = {}): HealthScoreReport {
     pillars: [BLOOD_PRESSURE, ACTIVITY_BELOW_FLOOR],
     delta: null,
     deltaReason: "no_current_score",
-    scoreVersion: 2,
+    scoreVersion: SCORE_VERSION,
     weightGoal: {
       status: "insufficient",
       coverage: {
@@ -241,7 +242,7 @@ function scoredReport(
         composition: ["BLOOD_PRESSURE", "ACTIVITY", "SLEEP"],
         configured: false,
         noiseFloor: 3,
-        scoreVersion: 2,
+        scoreVersion: SCORE_VERSION,
       },
       coverage: {
         requiredInputs: 3,
@@ -371,7 +372,7 @@ describe("<HealthScoreCard> pillars", () => {
               composition: ["BLOOD_PRESSURE", "GLYCAEMIA"],
               configured: false,
               noiseFloor: 3,
-              scoreVersion: 2,
+              scoreVersion: SCORE_VERSION,
             },
             coverage: {
               requiredInputs: 3,
@@ -600,7 +601,7 @@ describe("<HealthScoreCard> composite states", () => {
     expect(html).not.toContain('data-slot="health-score-card-progress"');
     expect(html).toContain("—");
     expect(html).not.toContain("/ 100");
-    expect(html).toContain("Method version 2");
+    expect(html).toContain(`Method version ${SCORE_VERSION}`);
   });
 
   it("explains a missing comparison where the trend would be", () => {
@@ -665,7 +666,9 @@ describe("<HealthScoreCard> footer", () => {
     const region = anatomyRegion(html);
     expect(region).toContain('data-slot="health-score-method"');
     expect(region).toContain("Overall band set by none");
-    expect(region).toContain("Method version 2. Weekly comparison floor");
+    expect(region).toContain(
+      `Method version ${SCORE_VERSION}. Weekly comparison floor`,
+    );
     expect(region).toContain('data-slot="provenance-explainer-method"');
     expect(region).toContain("equal-weighted average");
   });

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

@@ -8,6 +8,7 @@ import type {
   ScorePillarId,
   ScorePillarResult,
 } from "@/lib/analytics/score/types";
+import { SCORE_VERSION } from "@/lib/analytics/score/types";
 
 // The "generated" freshness line reads the profile timezone via `useAuth`; stub
 // it so the SSR render does not reach for a QueryClient the test omits.
@@ -116,7 +117,7 @@ function scoreReport(pillars: ScorePillarResult[]): HealthScoreReport {
         composition: ["BLOOD_PRESSURE"],
         configured: false,
         noiseFloor: 3,
-        scoreVersion: 2,
+        scoreVersion: SCORE_VERSION,
       },
       coverage: {
         requiredInputs: 3,
@@ -130,7 +131,7 @@ function scoreReport(pillars: ScorePillarResult[]): HealthScoreReport {
     pillars,
     delta: 2,
     deltaReason: null,
-    scoreVersion: 2,
+    scoreVersion: SCORE_VERSION,
     weightGoal: {
       status: "insufficient",
       coverage: {