life-church: scaffold README.md (Semaphore project 2)

life-church/README.md

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+# Life Church — Semaphore automation
+
+Self-contained subtree for the **Life Church** Semaphore project (project id 2),
+living inside the shared `sam/semaphore` repo so it reuses one repo + one deploy key
+while staying namespaced away from the SnS Hospitality Group automation.
+
+## Layout
+```
+life-church/
+  inventory/hosts.yml        # Life Church inventory (placeholder hosts for now)
+  playbooks/test-connection.yml   # read-only diagnostic: repo pull + Infisical
+```
+
+## Semaphore wiring (project "Life Church", id 2)
+- **Repository:** `git@192.168.122.103:/sam/semaphore.git` (branch `main`), deploy key `gitea_ssh`
+- **Inventory:** `life-church/inventory/hosts.yml`
+- **Environment:** `infisical-dev` → `INFISICAL_API_URL`, `INFISICAL_CLIENT_ID`,
+  `INFISICAL_CLIENT_SECRET`, `INFISICAL_PROJECT_ID`, `INFISICAL_ENV_SLUG`
+- **Deploy key:** Gitea `sam/semaphore` deploy key `lifechurch-semaphore-deploy` (read-only).
+  Private key backed up in Infisical at `/semaphore/LIFECHURCH_DEPLOY_KEY`.
+
+## Notes
+- `ansible.cfg` and `requirements.yml` at the repo root are shared.
+- Run playbooks with the repo-root config; reference them as `life-church/playbooks/<name>.yml`.
+- Keep this subtree read-only/diagnostic until real Life Church hosts + playbooks are added.