fix(google-health): surface the connection status and add the resume and test routes

Wire the settings card to the live connection so it reflects reality
after a connect.

- Emit a google-health entry on the consolidated integration-status
  envelope (configured, connected, last sync, backfill, and the
  needs-reconnect flag). Without it the card read an undefined status and
  showed a permanently disconnected connection even after a successful
  OAuth grant, hiding the sync, disconnect, and reconnect controls.
- Add the resume and test-connection routes the card calls, mirroring the
  classic Fitbit ones.
- Use the shared refresh icon on the reconnect action.
- Drop the experimental-scope opt-in from the runbook and describe ECG
  and irregular-rhythm as a planned addition rather than a current toggle.

src/components/settings/integrations/google-health-card.tsx

@@ -17,15 +17,7 @@
 
 import { useState } from "react";
 import { useMutation, useQueryClient } from "@tanstack/react-query";
-import {
-  Link2,
-  Loader2,
-  RefreshCw,
-  RotateCw,
-  Save,
-  Unlink,
-  Watch,
-} from "lucide-react";
+import { Link2, Loader2, RefreshCw, Save, Unlink, Watch } from "lucide-react";
 
 import {
   AlertDialog,
@@ -263,7 +255,7 @@ export function GoogleHealthCard({
               data-testid="google-health-reconnect-button"
               className="min-h-11"
             >
-              <RotateCw className="h-3.5 w-3.5" />
+              <RefreshCw className="h-3.5 w-3.5" />
               {t("settings.googleHealthReconnect")}
             </Button>
           </div>