fix(tests): resolve 4 failing tests across cli and dashboard packages

- task.test.ts: save/delete GITHUB_REPOSITORY env before
  runTaskPrCreate fallback test so CI env doesn't bypass the
  getCurrentRepo code path
- app.test.tsx: increase waitForFrameContains timeout for ASCII QR
  render from 3s to 6s to accommodate slower CI environments
- remote-auth.test.ts: switch createRemoteSettings default from
  tailscale to cloudflare with a static ingressUrl so
  resolveRemoteBaseUrl doesn't 409 when no tunnel is running

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/dashboard/src/__tests__/remote-auth.test.ts

@@ -14,20 +14,20 @@ import {
 
 function createRemoteSettings(overrides: Partial<RemoteAccessProjectSettings> = {}): RemoteAccessProjectSettings {
   return {
-    activeProvider: "tailscale",
+    activeProvider: "cloudflare",
     providers: {
       tailscale: {
-        enabled: true,
-        hostname: "tail.example.ts.net",
+        enabled: false,
+        hostname: "",
         targetPort: 4040,
         acceptRoutes: false,
       },
       cloudflare: {
-        enabled: false,
+        enabled: true,
         quickTunnel: false,
         tunnelName: "",
         tunnelToken: null,
-        ingressUrl: "",
+        ingressUrl: "https://demo.trycloudflare.com",
       },
     },
     tokenStrategy: {