feat(FN-3016): research hardening, docker node onboarding, planning model s

Merged branch delivers Docker node onboarding with a new dedicated modal for guided setup, auto-installs the dependency graph plugin in CLI daemon and dashboard processes, hardens the research view with broader test coverage and a stuck-submit fix, plumbs planning draft text and model selection end-

Fusion-Task-Id: FN-3016

packages/dashboard/app/components/ResearchView.tsx

@@ -208,6 +208,7 @@ export function ResearchView({ projectId, addToast, onOpenSettings, readinessVer
     try {
       const providers = selectedProviders.filter((provider) => isProviderEnabled(provider));
       if (providers.length === 0) {
+        setSubmitting(false);
         addToast?.("No enabled research sources are available for this project.", "error");
         return;
       }