Initial commit: nult - Ansible deployment toolkit

Merged from veridion-gitea and veridion-act-runner-gitea repos.

nult (Null-T) - instant teleportation from Strugatsky's Noon Universe.
Like Null-T, this toolkit instantly deploys infrastructure.

Roles:
- gitea: Gitea server with PostgreSQL (Docker Compose)
- act_runner: Gitea Actions runner

Playbooks:
- gitea.yml: Deploy Gitea server
- act-runner.yml: Deploy Act Runner
- site.yml: Deploy all services

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

roles/gitea/handlers/main.yml

@@ -0,0 +1,23 @@
+---
+# =============================================================================
+# Gitea Role Handlers
+# =============================================================================
+#
+# Handlers are triggered by 'notify' in tasks and run at the end of the play.
+# They're typically used for service restarts after configuration changes.
+#
+# In this role, most restarts happen via docker compose in deploy.yml,
+# so handlers are minimal. These are provided for ad-hoc config changes.
+# =============================================================================
+
+- name: Restart gitea
+  ansible.builtin.command:
+    cmd: "docker compose -f {{ gitea_install_dir }}/docker-compose.yml restart {{ gitea_container_name }}"
+  listen: "restart gitea"
+  changed_when: true
+
+- name: Restart gitea services
+  ansible.builtin.command:
+    cmd: "docker compose -f {{ gitea_install_dir }}/docker-compose.yml up -d --wait"
+  listen: "restart gitea services"
+  changed_when: true