test: Configure Molecule testing framework

- Add comprehensive converge playbook with test scenarios
- Create Molecule configuration for role testing
- Set up verification tasks

molecule/default/molecule.yml

@@ -0,0 +1,18 @@
+---
+dependency:
+  name: galaxy
+driver:
+  name: docker
+platforms:
+  - name: ubuntu-jammy
+    image: ubuntu:jammy
+  - name: ubuntu-focal
+    image: ubuntu:focal
+  - name: debian-bullseye
+    image: debian:bullseye
+provisioner:
+  name: ansible
+  lint:
+    name: ansible-lint
+verifier:
+  name: ansible