feat: add Triglav as end-to-end test orchestrator

.github/workflows/auto-pull-request-create.yml

@@ -8,9 +8,10 @@ on:
       - dependabot/**
 
 permissions:
-  contents: read
+  contents: write
   packages: write
   pull-requests: write
+  issues: write
 
 jobs:
   call:

.github/workflows/auto-release-create.yml

@@ -21,7 +21,8 @@ on:
 permissions:
   contents: write
   packages: write
-  pull-requests: read
+  pull-requests: write
+  issues: write
 
 jobs:
   call:

.github/workflows/manual-e2e-validate.yml

@@ -0,0 +1,30 @@
+name: (Manual) E2E Validate
+
+on:
+  workflow_dispatch:
+    inputs:
+      mode:
+        description: Validation mode
+        required: false
+        default: image
+        type: choice
+        options:
+          - image
+          - ref
+      image_tag:
+        description: Image tag used when mode=image (for example v1.2.3-test or v1.2.3-rc)
+        required: false
+        default: ""
+        type: string
+
+permissions:
+  contents: read
+  packages: read
+
+jobs:
+  e2e:
+    uses: devops-infra/triglav/.github/workflows/e2e-action-container-structure-test.yml@master
+    with:
+      mode: ${{ inputs.mode }}
+      image_tag: ${{ inputs.image_tag }}
+    secrets: inherit

.github/workflows/manual-release-branch-prepare.yml

@@ -27,6 +27,7 @@ permissions:
   contents: write
   packages: write
   pull-requests: write
+  issues: write
 
 jobs:
   call:

README.md

@@ -359,3 +359,26 @@ This project is licensed under the MIT License - see the [LICENSE](LICENSE) file
 If you have any questions or need help, please:
 - 📝 Create an [issue](https://github.com/devops-infra/action-container-structure-test/issues)
 - 🌟 Star this repository if you find it useful!
+
+## 🧪 End-to-End Validation
+Use the manual workflow `.github/workflows/manual-e2e-validate.yml` to validate this action against the centralized E2E repository.
+
+- `mode=image` validates a published image tag (recommended for `-test` and `-rc` release checks).
+- `mode=ref` validates ref-oriented E2E paths against stable pinned action refs.
+
+CI/CD automation also runs these E2E checks automatically:
+
+- Pull requests: E2E validation runs through reusable org workflows.
+- Release branch prepare: E2E validation runs against release candidate artifacts (`-rc`).
+- Release create: E2E validation runs against production release artifacts.
+
+Example trigger inputs:
+
+```text
+mode=ref
+```
+
+```text
+mode=image
+image_tag=v1.2.3-test
+```