Fix CI workflow to use github context variables.

The ChristopherHX runner only supports github.* expressions, not gitea.*.

Co-authored-by: Cursor <cursoragent@cursor.com>

.gitea/workflows/docker-release.yml

@@ -20,16 +20,15 @@ jobs:
       - name: Image tags
         id: meta
         run: |
-          short_sha="${GITEA_SHA:-${GITHUB_SHA}}"
-          short_sha="${short_sha:0:7}"
+          short_sha="${GITHUB_SHA:0:7}"
           echo "short_sha=${short_sha}" >> "$GITHUB_OUTPUT"
 
           {
             echo "tags<<EOF"
             echo "${IMAGE}:latest"
             echo "${IMAGE}:sha-${short_sha}"
-            if [ "${GITEA_REF_TYPE:-${GITHUB_REF_TYPE}}" = "tag" ]; then
-              ref_name="${GITEA_REF_NAME:-${GITHUB_REF_NAME}}"
+            if [ "${GITHUB_REF_TYPE}" = "tag" ]; then
+              ref_name="${GITHUB_REF_NAME}"
               echo "${IMAGE}:${ref_name}"
               echo "${IMAGE}:${ref_name#v}"
             fi
@@ -37,11 +36,8 @@ jobs:
           } >> "$GITHUB_OUTPUT"
         env:
           IMAGE: ${{ env.IMAGE }}
-          GITEA_SHA: ${{ gitea.sha }}
           GITHUB_SHA: ${{ github.sha }}
-          GITEA_REF_TYPE: ${{ gitea.ref_type }}
           GITHUB_REF_TYPE: ${{ github.ref_type }}
-          GITEA_REF_NAME: ${{ gitea.ref_name }}
           GITHUB_REF_NAME: ${{ github.ref_name }}
 
       - name: Set up Docker Buildx
@@ -51,7 +47,7 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
-          username: ${{ gitea.actor }}
+          username: ${{ github.actor }}
           password: ${{ secrets.REGISTRY_TOKEN }}
 
       - name: Build and push
@@ -63,7 +59,7 @@ jobs:
 
   release:
     needs: build-and-push
-    if: gitea.ref_type == 'tag' || github.ref_type == 'tag'
+    if: github.ref_type == 'tag'
     runs-on: self-hosted
     steps:
       - name: Checkout
@@ -75,18 +71,18 @@ jobs:
           NODE_OPTIONS: "--experimental-fetch"
         with:
           token: ${{ secrets.REGISTRY_TOKEN }}
-          tag_name: ${{ gitea.ref_name }}
-          name: Conflict Checker ${{ gitea.ref_name }}
+          tag_name: ${{ github.ref_name }}
+          name: Conflict Checker ${{ github.ref_name }}
           body: |
             ## Docker
 
             ```bash
             docker login gitea.scoutitsystems.com
-            docker pull gitea.scoutitsystems.com/woogi/conflict-checker:${{ gitea.ref_name }}
+            docker pull gitea.scoutitsystems.com/woogi/conflict-checker:${{ github.ref_name }}
             ```
 
             Deploy on a host (with `docker-compose.prod.yml` and `backend/.env`):
 
             ```bash
-            IMAGE_TAG=${{ gitea.ref_name }} docker compose -f docker-compose.prod.yml up -d
+            IMAGE_TAG=${{ github.ref_name }} docker compose -f docker-compose.prod.yml up -d
             ```