fix: giảm spam 429 từ Claude OAuth usage endpoint

- claudeAutoPing: cache resetAt in-mem, bỏ qua poll usage cho tới gần reset
- ProviderLimits: throttle auto-refresh Claude 3 phút, nút bấm tay vẫn refresh ngay
- claude.js: 429 ở OAuth usage → cooldown 3 phút, fallback legacy (không ảnh hưởng chat)

Co-authored-by: Cursor <cursoragent@cursor.com>

src/app/(dashboard)/dashboard/usage/components/ProviderLimits/utils.js

@@ -3,6 +3,8 @@ import { getModelsByProviderId } from "open-sse/config/providerModels.js";
 // ─── Constants ───────────────────────────────────────────────────────────────
 export const QUOTA_CACHE_KEY = "quotaCacheData";
 export const REFRESH_INTERVAL_MS = 60000;
+// Claude usage/quota endpoint rate-limits; poll it less often than other providers
+export const CLAUDE_REFRESH_INTERVAL_MS = 180000;
 export const DEPLETED_QUOTA_THRESHOLD = 5;
 export const AUTO_REFRESH_STORAGE_KEY = "quotaAutoRefresh";
 export const CONNECTIONS_PAGE_SIZE = 20;