ci: add GitHub Actions workflows for tests and SLSA provenance

Author: pixel365

.github/workflows/slsa.yml

@@ -0,0 +1,15 @@
+name: SLSA Provenance
+
+on:
+  release:
+    types: [ created ]
+
+permissions:
+  id-token: write
+  contents: read
+
+jobs:
+  provenance:
+    uses: slsa-framework/slsa-github-generator/.github/workflows/builder_go_slsa3.yml@v2.1.0
+    with:
+      upload-assets: true

.github/workflows/test.yml

@@ -0,0 +1,31 @@
+name: Run tests
+
+permissions:
+  contents: read
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  test:
+    name: Run tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+        with:
+          fetch-depth: 0
+
+      - name: Set up Go
+        uses: actions/setup-go@19bb51245e9c80abacb2e91cc42b33fa478b8639
+        with:
+          go-version: '1.25.7'
+
+      - name: Install dependencies
+        run: go mod download
+
+      - name: Run tests
+        run: go test ./internal/... ./epp/... ./cmd/...