refactor: update MitmServerCard and MitmToolCard to use modalError instead of message for error handling

- Replaced message state with modalError in both components for better error management.
- Removed unused message display logic and adjusted action handling to improve clarity.
- Enhanced error handling in doAction and doDnsAction functions to ignore errors gracefully.
- Updated API call responses to streamline user feedback on actions.

src/shared/services/initializeApp.js

@@ -1,5 +1,5 @@
 import { cleanupProviderConnections, getSettings, updateSettings, getApiKeys } from "@/lib/localDb";
-import { enableTunnel } from "@/lib/tunnel/tunnelManager";
+import { enableTunnel, isTunnelManuallyDisabled, isTunnelReconnecting } from "@/lib/tunnel/tunnelManager";
 import { killCloudflared, isCloudflaredRunning, ensureCloudflared } from "@/lib/tunnel/cloudflared";
 import { getMitmStatus, startMitm, loadEncryptedPassword, initDbHooks } from "@/mitm/manager";
 import { fileURLToPath } from "url";
@@ -135,12 +135,20 @@ function startWatchdog() {
   if (g.watchdogInterval) return;
   g.watchdogInterval = setInterval(async () => {
     try {
+      if (isTunnelManuallyDisabled()) return;
+      if (isTunnelReconnecting()) return;
+      if (g.tunnelRestartInProgress) return;
       const settings = await getSettings();
       if (!settings.tunnelEnabled) return;
       if (isCloudflaredRunning()) return;
       console.log("[Watchdog] Tunnel process is down, attempting recovery...");
-      await enableTunnel();
-      console.log("[Watchdog] Tunnel recovered");
+      g.tunnelRestartInProgress = true;
+      try {
+        await enableTunnel();
+        console.log("[Watchdog] Tunnel recovered");
+      } finally {
+        g.tunnelRestartInProgress = false;
+      }
     } catch (err) {
       console.log("[Watchdog] Recovery failed:", err.message);
     }
@@ -173,6 +181,7 @@ function startNetworkMonitor() {
 
   g.networkMonitorInterval = setInterval(async () => {
     try {
+      if (isTunnelManuallyDisabled()) return;
       const settings = await getSettings();
       if (!settings.tunnelEnabled) return;
 
@@ -190,6 +199,7 @@ function startNetworkMonitor() {
 
       // Skip if restart already in progress or restarted recently
       if (g.tunnelRestartInProgress) return;
+      if (isTunnelReconnecting()) return;
       if (now - g.lastTunnelRestartAt < NETWORK_RESTART_COOLDOWN_MS) return;
 
       const reason = wasSleep && networkChanged ? "sleep/wake + network change"