fix: move workflow to repo root, add working-directory for terraform

.gitea/workflows/terraform.yml

@@ -9,6 +9,10 @@ on:
 env:
   TF_VAR_netbird_token: ${{ secrets.NETBIRD_TOKEN }}
 
+defaults:
+  run:
+    working-directory: terraform
+
 jobs:
   terraform:
     runs-on: ubuntu-latest
@@ -41,10 +45,11 @@ jobs:
 
       - name: Commit state changes
         if: github.ref == 'refs/heads/main' && github.event_name == 'push'
+        working-directory: .
         run: |
           git config user.name "Terraform CI"
           git config user.email "ci@localhost"
-          git add terraform.tfstate terraform.tfstate.backup 2>/dev/null || true
+          git add terraform/terraform.tfstate terraform/terraform.tfstate.backup 2>/dev/null || true
           if ! git diff --staged --quiet; then
             git commit -m "chore: update terraform state [skip ci]"
             git push