fix(router-host-2000): wait on all router ports before e2e to deflake CI

Also retry Next dev E2E steps to reduce flakiness

Author: ScriptedAlchemy

.ci-logs/e2e-next-dev.log

@@ -47,18 +47,30 @@ jobs:
         run: node tools/scripts/ci-is-affected.mjs --appName=3000-home
       - name: E2E Test for Next.js Dev - Home
         if: steps.check-ci.outcome == 'success'
-        run: |
-          killall node
-          npx nx run 3000-home:test:e2e
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 2
+          timeout_minutes: 15
+          command: |
+            killall node || true
+            npx nx run 3000-home:test:e2e
 
       - name: E2E Test for Next.js Dev - Shop
         if: steps.check-ci.outcome == 'success'
-        run: |
-          killall node
-          npx nx run 3001-shop:test:e2e
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 2
+          timeout_minutes: 15
+          command: |
+            killall node || true
+            npx nx run 3001-shop:test:e2e
 
       - name: E2E Test for Next.js Dev - Checkout
         if: steps.check-ci.outcome == 'success'
-        run: |
-          killall node
-          npx nx run 3002-checkout:test:e2e
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 2
+          timeout_minutes: 15
+          command: |
+            killall node || true
+            npx nx run 3002-checkout:test:e2e

.github/workflows/e2e-next-dev.yml

@@ -46,4 +46,9 @@ jobs:
 
       - name: E2E Test for Runtime Demo
         if: steps.check-ci.outcome == 'success'
-        run: npx kill-port --port 2000,2001,2002,2003,2004,2200,2100 && pnpm run app:router:dev & echo "done" && sleep 30 && npx nx run-many --target=test:e2e --projects=router-host-2000 --parallel=1 && lsof -ti tcp:2000,2001,2002,2003,2004,2200,2100 | xargs kill
+        run: |
+          npx kill-port --port 2000,2001,2002,2003,2004,2200,2100 && \
+          pnpm run app:router:dev & \
+          pnpm wait-on tcp:2000 tcp:2001 tcp:2002 tcp:2003 tcp:2004 tcp:2200 tcp:2100 && \
+          npx nx run-many --target=test:e2e --projects=router-host-2000 --parallel=1 && \
+          lsof -ti tcp:2000,2001,2002,2003,2004,2200,2100 | xargs -r kill