feat: Claude auto-ping to warm 5h window after reset

Auto-sends a minimal request right after each Claude OAuth connection's 5h quota window resets, so a fresh window starts immediately without waiting. Per-connection toggle on providers and quota dashboards.

- claudeAutoPing scheduler (server-side, 60s tick) hooked into initializeApp
- per-connection enable map in settings.claudeAutoPing.connections
- toggle + tooltip in ConnectionRow and ProviderLimits (Claude OAuth only)

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

src/shared/services/initializeApp.js

@@ -14,6 +14,7 @@ import {
   WATCHDOG_INTERVAL_MS, NETWORK_CHECK_INTERVAL_MS, VIRTUAL_IFACE_REGEX,
 } from "@/lib/tunnel";
 import { getMitmStatus, startMitm, loadEncryptedPassword, initDbHooks, restoreToolDNS, removeAllDNSEntriesSync } from "@/mitm/manager";
+import { startClaudeAutoPing } from "@/shared/services/claudeAutoPing";
 import { syncToJson as syncMitmAliasCache } from "@/lib/mitmAliasCache";
 
 // Inject correct paths and DB hooks into manager.js (CJS) from ESM context
@@ -88,6 +89,7 @@ export async function initializeApp() {
     startWatchdog();
     startNetworkMonitor();
     autoStartMitm();
+    startClaudeAutoPing();
   } catch (error) {
     console.error("[InitApp] Error:", error);
   }