feat: simapp/v2 (#20412)

Co-authored-by: marbar3778 <marbar3778@yahoo.com>
Co-authored-by: Marko <marko@baricevic.me>
Co-authored-by: Likhita Polavarapu <78951027+likhita-809@users.noreply.github.com>
Co-authored-by: unknown unknown <unknown@unknown>

.github/workflows/test.yml

@@ -485,6 +485,30 @@ jobs:
           cd simapp
           go test -mod=readonly -timeout 30m -tags='app_v1 norace ledger test_ledger_mock' ./...
 
+  test-simapp-v2:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: "1.22"
+          check-latest: true
+          cache: true
+          cache-dependency-path: go.sum
+      - uses: technote-space/get-diff-action@v6.1.2
+        id: git_diff
+        with:
+          PATTERNS: |
+            **/*.go
+            go.mod
+            go.sum
+            **/go.mod
+            **/go.sum
+      - name: simapp-v2-smoke-test
+        if: env.GIT_DIFF
+        run: |
+          ./scripts/simapp-v2-init.sh
+
   test-collections:
     runs-on: ubuntu-latest
     steps: