merge: incorporate latest dev changes into phase1-perf branch

Merge origin/dev to pick up service isolation (concurrently dev script,
turbopack aliases, instrumentation simplification), PostHog analytics,
color scheme, and other dev improvements while preserving all Phase 1
performance work (Suspense boundaries, cache components, Redis handler,
integration barrel diet, cache invalidation).

packages/integrations/src/overseerr/overseerr-integration.ts

@@ -185,9 +185,15 @@ export class OverseerrIntegration
       }),
     );
 
-    return settled
+    const fulfilled = settled
       .filter((result): result is PromiseFulfilledResult<MediaRequest> => result.status === "fulfilled")
       .map((result) => result.value);
+
+    if (fulfilled.length === 0) {
+      throw new Error("Failed to resolve any media request information");
+    }
+
+    return fulfilled;
   }
 
   protected mapRequestStatus(status: UpstreamMediaRequestStatus): MediaRequestStatus {