initialized workflow

.gitea/workflows/hello.yaml

@@ -0,0 +1,23 @@
+name: Hello World
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  hello:
+    runs-on: self-hosted
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Say hello
+        run: |
+          echo "Hello from Gitea Actions!"
+          echo "Runner: ${{ runner.name }}"
+          echo "Workspace: $PWD"
+
+      - name: Show environment
+        run: env | sort