v1.4.33 — polish and reliability

Quality-leap release between two HealthKit milestones. The headline is a P0 hotfix for the `/api/analytics` 500 that broke the Insights mother page for any account with more than a few thousand measurements: the six per-metric status helpers were spreading the entire numeric history into `Math.min` / `Math.max`, which trips a stack overflow once a single argument list exceeds the V8 spread cap. Both the surfaced symptom and the latent risk in five sibling helpers were folded onto a reduce-based min/max path.

Around that hotfix landed a deep polish pass: the Insights mother page now defers three below-the-fold blocks behind `next/dynamic` to trim the cold mount cost, the analytics endpoint gained a `?slice=summaries` slim slice that the per-metric sub-pages now ride, the Coach snapshot builder picked up a 60 s LRU keyed on `(userId, scope)`, the Settings shell consolidated three duplicate copies of the about / notifications / about-dropdown surfaces, the navigation strip dropped a redundant "Home" group label and a colliding "Notifications" sibling, every icon-only button on the medications and admin surfaces gained an accessible name, every Progress bar gained one too, three pages had their heading hierarchy repaired to a sequential h1 → h2 → h3, the mobile Coach FAB now hides while a chart tooltip is open so it cannot occlude the read-out, and the auth shell normalised every authenticated route to a single `max-w-screen-xl` container.

Also lands the Apple App Site Association handler at `/.well-known/apple-app-site-association` on every host that fronts the app, advertising the iOS bundle's App ID prefix (S8WDX4W5KX.dev.healthlog.app) under `webcredentials.apps` so the passkey ceremony shares cleanly between the web origin and the iOS app.

The release closes nineteen issues from a five-surface audit + a runtime bug-hunt pass, plus six follow-up tracks of polish across the affected surfaces.

src/components/admin/__tests__/ai-quality-section.test.tsx

@@ -57,7 +57,9 @@ describe("<AiQualitySection>", () => {
     mockQueryState.isLoading = false;
     mockQueryState.isError = false;
     const html = render(<AiQualitySection />);
-    expect(html).toContain("AI Quality");
+    // v1.4.33 IW7 — admin section renamed from "AI Quality" to
+    // "Insights Quality" per the Marc-Voice rule.
+    expect(html).toContain("Insights Quality");
     expect(html).toContain("No feedback yet");
   });
 
@@ -118,6 +120,6 @@ describe("<AiQualitySection>", () => {
     mockQueryState.isLoading = false;
     mockQueryState.isError = true;
     const html = render(<AiQualitySection />);
-    expect(html).toContain("Failed to load AI quality summary");
+    expect(html).toContain("Failed to load Insights quality summary");
   });
 });

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

@@ -148,7 +148,10 @@ describe("admin sections — SSR smoke", () => {
   // ai-quality-section test.
   it("<AiQualitySection> renders the empty-state when no summary exists", () => {
     const html = render(<AiQualitySection />);
-    expect(html).toContain("AI Quality");
+    // v1.4.33 IW7 — section renamed from "AI Quality" to
+    // "Insights Quality" per the Marc-Voice rule (no "KI"/"AI" prefix
+    // in user-facing copy).
+    expect(html).toContain("Insights Quality");
     expect(html).toContain("No feedback yet");
   });