ci: add e2e workflow to run integration tests

This workflow will run e2e tests on push to catch regressions.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: scotwells

.github/workflows/e2e.yml

@@ -0,0 +1,39 @@
+name: E2E Tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  e2e:
+    name: Run Chainsaw E2E Tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone the code
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: Setup Kind
+        uses: helm/kind-action@v1
+        with:
+          install_only: true
+
+      - name: Create Kind test cluster
+        run: make setup-test-e2e
+
+      - name: Bootstrap e2e environment
+        run: make bootstrap-e2e
+
+      - name: Prepare kubeconfigs for Chainsaw
+        run: make chainsaw-prepare-kubeconfigs
+
+      - name: Run Chainsaw tests
+        run: make chainsaw-test