Docs-as-code: full deploy configs, compose stacks, and DR guide

- Add root README and docs/ (architecture, hosts, disaster-recovery, operations)
- Add compose/ for superset, forgejo, lam, cadvisor; unified deploy compose
- Add scripts/deploy (deploy-atc-docker01.sh, container inventory export)
- Add inventory/containers-atc-docker01.json snapshot
- Add config READMEs for kafka and airflow; .env.example; expand .gitignore
- Sync atclab helper scripts; update homepage/superset compose with env support

deploy/README.md

@@ -0,0 +1,20 @@
+# Deploy
+
+| Bestand | Doel |
+|---------|------|
+| `docker-compose.homepage.yml` | Homepage + RSS-proxy + icon nginx |
+| `docker-compose.atc-docker01.yml` | Alle stacks via Compose `include` |
+| `../scripts/deploy/deploy-atc-docker01.sh` | Aanbevolen: stapsgewijs deployen |
+
+## Commando's
+
+```bash
+# Alleen dashboard
+docker compose -f deploy/docker-compose.homepage.yml up -d --build
+
+# Volledige docker01 stack
+docker compose -f deploy/docker-compose.atc-docker01.yml up -d --build
+
+# Of script
+./scripts/deploy/deploy-atc-docker01.sh
+```