feat(desktop/account-health): treat active/expiring_soon probes as live and dedupe in-flight checks

Why: avoid showing accounts as not-live during stale-window probes; keep publish gating consistent with runtime view.

- collapse FIRST_PROBE window so initial probe runs immediately
- skip due-probe selection when a probe is already queued/in-flight
- mirror auth-state→health projection on both client report and tenant ingest paths

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

apps/desktop-client/src/main/bootstrap.ts

@@ -337,7 +337,7 @@ function registerBridgeHandlers(): void {
     return null;
   });
   safeHandle("desktop:probe-runtime-account", async (_event, accountId: string) => {
-    requestRuntimeAccountProbe(accountId);
+    await requestRuntimeAccountProbe(accountId);
     return captureRuntimeAccountSnapshot(accountId);
   });
   safeHandle(