fix: repair CI/CD pipeline for Gitea Actions

- Remove actions/upload-artifact@v4 (not supported on Gitea, GHESNotSupportedError)
- Add job permissions (packages: write, contents: read)
- Fix master branch condition (github.ref_name compatible with Gitea)
- Fix Docker login: use gitea.actor + GITHUB_TOKEN instead of reserved GITEA_ secrets
- Lowercase image tags per Docker spec (mrixs/mrixscraft-server)
- Sync docker-compose.yml image reference

.gitea/workflows/ci.yml

@@ -96,17 +96,13 @@ jobs:
       - name: Build binary
         run: go build -o mrixscraft-server ./cmd/server
 
-      - name: Upload artifact
-        if: github.ref == 'refs/heads/master'
-        uses: actions/upload-artifact@v4
-        with:
-          name: mrixscraft-server
-          path: mrixscraft-server
-
   docker:
     runs-on: ubuntu-latest
     needs: build
-    if: github.ref == 'refs/heads/master'
+    if: github.ref_name == 'master'
+    permissions:
+      packages: write
+      contents: read
     steps:
       - uses: actions/checkout@v4
 
@@ -117,8 +113,8 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: gitea.mrixs.me
-          username: ${{ secrets.GITEA_USERNAME }}
-          password: ${{ secrets.GITEA_TOKEN }}
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push
         uses: docker/build-push-action@v5
@@ -126,7 +122,7 @@ jobs:
           context: .
           push: true
           tags: |
-            gitea.mrixs.me/Mrixs/MrixsCraft-server:latest
-            gitea.mrixs.me/Mrixs/MrixsCraft-server:${{ github.sha }}
-          cache-from: type=registry,ref=gitea.mrixs.me/Mrixs/MrixsCraft-server:buildcache
-          cache-to: type=registry,ref=gitea.mrixs.me/Mrixs/MrixsCraft-server:buildcache,mode=max
+            gitea.mrixs.me/mrixs/mrixscraft-server:latest
+            gitea.mrixs.me/mrixs/mrixscraft-server:${{ github.sha }}
+          cache-from: type=registry,ref=gitea.mrixs.me/mrixs/mrixscraft-server:buildcache
+          cache-to: type=registry,ref=gitea.mrixs.me/mrixs/mrixscraft-server:buildcache,mode=max

docker-compose.yml

@@ -17,7 +17,7 @@ services:
       - cdn_files:/var/www/cdn/files:ro
 
   backend:
-    image: git.mrixs.me/Mrixs/MrixsCraft-server:latest
+    image: gitea.mrixs.me/mrixs/mrixscraft-server:latest
     container_name: mc-backend
     restart: unless-stopped
     environment: