Add Gitea act-runner and test actions for the repo

cicd-plan.md

@@ -293,8 +293,8 @@ exit 1
 
 ## Implementation Order
 
-- [ ] **Phase 1a**: Create `act-runner.nomad.hcl` + Terraform wrapper, register runner token in Gitea, get a hello-world workflow green
-- [ ] **Phase 1b**: Add `terraform fmt` + `terraform validate -backend=false` workflow — no secrets needed
+- [x] **Phase 1a**: Create `act-runner.nomad.hcl` + Terraform wrapper, register runner token in Gitea, get a hello-world workflow green
+- [x] **Phase 1b**: Add `terraform fmt` + `terraform validate -backend=false` workflow — no secrets needed
 - [ ] **Phase 1c**: Add Nomad validate step — add `NOMAD_ADDR` + read-only `NOMAD_TOKEN` to Gitea secrets
 - [ ] **Phase 2**: Add image pull validation step to the workflow
 - [ ] **Phase 3a**: Add `update` stanzas to ntfy and glance (simplest, no volume conflict)