ci: fix workflow - clone into /src directory

Previous issue: git repo check at /workspace/rock failed

Solution:
- Clone repo explicitly into /src directory
- cd /src for all git operations
- Build from /src
- Use github.sha environment variable for explicit checkout

.gitea/workflows/build.yaml

@@ -12,42 +12,47 @@ jobs:
     container:
       image: docker:27-dind
       options: --privileged
+    env:
+      REGISTRY: forgejo.riotpiao.com
+      IMAGE: forgejo.riotpiao.com/rock/poimen-memory
     steps:
-      - name: Install git
+      - name: Checkout code
         run: |
           apk add --no-cache git
+          git clone https://git.riotpiao.com:2222/rock/poimen-memory.git /src
+          cd /src
+          git checkout ${{ github.sha }}
 
       - name: Get commit info
         id: info
         run: |
-          SHORT_SHA=$(git -C . rev-parse --short HEAD)
-          COMMIT_MSG=$(git -C . log -1 --pretty=%B | head -1)
+          cd /src
+          SHORT_SHA=$(git rev-parse --short HEAD)
           echo "short_sha=${SHORT_SHA}" >> $GITHUB_OUTPUT
-          echo "commit_msg=${COMMIT_MSG}" >> $GITHUB_OUTPUT
-          echo "Building: ${SHORT_SHA} - ${COMMIT_MSG}"
+          echo "Commit SHA: ${SHORT_SHA}"
 
       - name: Docker login
         run: |
           echo "${{ secrets.REGISTRY_PAT }}" | \
-          docker login -u rock --password-stdin forgejo.riotpiao.com
+          docker login -u rock --password-stdin ${{ env.REGISTRY }}
 
       - name: Build image
         run: |
+          cd /src
           docker build \
-            --tag forgejo.riotpiao.com/rock/poimen-memory:${{ steps.info.outputs.short_sha }} \
-            --tag forgejo.riotpiao.com/rock/poimen-memory:latest \
+            --tag ${{ env.IMAGE }}:${{ steps.info.outputs.short_sha }} \
+            --tag ${{ env.IMAGE }}:latest \
             .
           echo "✅ Image built successfully"
 
       - name: Push image
         run: |
-          docker push forgejo.riotpiao.com/rock/poimen-memory:${{ steps.info.outputs.short_sha }}
-          docker push forgejo.riotpiao.com/rock/poimen-memory:latest
+          docker push ${{ env.IMAGE }}:${{ steps.info.outputs.short_sha }}
+          docker push ${{ env.IMAGE }}:latest
           echo "✅ Image pushed successfully"
-          echo "Image: forgejo.riotpiao.com/rock/poimen-memory:latest"
 
       - name: Cleanup
         if: always()
         run: |
-          docker logout forgejo.riotpiao.com || true
+          docker logout ${{ env.REGISTRY }} || true
           echo "✅ Cleanup complete"