Refactor cloudflared process management to improve port-specific termination and enhance tunnel management. Update Antigravity cloaking comments for clarity.

src/lib/tunnel/cloudflared.js

@@ -360,7 +360,21 @@ export async function spawnQuickTunnel(localPort, onUrlUpdate) {
   });
 }
 
-export function killCloudflared() {
+// Kill cloudflared processes whose command line targets the given port (any host).
+// Boundary check ensures :20128 doesn't match :201280 or :202128.
+function killCloudflaredByPort(port) {
+  if (!port) return;
+  try {
+    if (IS_WINDOWS) {
+      const psCmd = `Get-CimInstance Win32_Process -Filter \\"Name='cloudflared.exe'\\" | Where-Object { $_.CommandLine -match ':${port}(\\D|$)' } | ForEach-Object { Stop-Process -Id $_.ProcessId -Force }`;
+      execSync(`powershell -NoProfile -Command "${psCmd}"`, { stdio: "ignore", windowsHide: true });
+    } else {
+      execSync(`pkill -f "cloudflared.*:${port}([^0-9]|$)" 2>/dev/null || true`, { stdio: "ignore", windowsHide: true });
+    }
+  } catch (e) { /* ignore */ }
+}
+
+export function killCloudflared(localPort) {
   if (cloudflaredProcess) {
     try {
       cloudflaredProcess.kill();
@@ -376,10 +390,7 @@ export function killCloudflared() {
     clearPid();
   }
 
-  // Kill any remaining cloudflared processes
-  try {
-    execSync("pkill -f cloudflared 2>/dev/null || true", { stdio: "ignore", windowsHide: true });
-  } catch (e) { /* ignore */ }
+  killCloudflaredByPort(localPort);
 }
 
 export function isCloudflaredRunning() {