fix(saas): industry template audit fixes + pgvector optional + relay timeout

- Fix seed template tools to match actual runtime tool names
  (file_read/file_write/shell_exec/web_fetch)
- Persist system_prompt/temperature/max_tokens via identity system
  in agentStore.createFromTemplate()
- Fire-and-forget assignTemplate() in AgentOnboardingWizard
- Fix saas-relay-client unused variable warning
- Make pgvector extension optional in knowledge_base migration
- Increase StreamBridge timeout from 30s to 90s for thinking models

desktop/src/components/AgentOnboardingWizard.tsx

@@ -134,6 +134,12 @@ export function AgentOnboardingWizard({ isOpen, onClose, onSuccess }: AgentOnboa
         personality: full.personality || prev.personality,
         scenarios: full.scenarios.length > 0 ? full.scenarios : prev.scenarios,
       }));
+
+      // Persist template assignment to SaaS backend (fire-and-forget)
+      useSaaSStore.getState().assignTemplate(t.id).catch((err: unknown) => {
+        log.warn('Failed to assign template to account:', err);
+      });
+
       setCurrentStep(1);
     } catch {
       // If fetch fails, still allow manual creation