fix: CI先清理旧Release再创建，避免重复冲突

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/release-docs.yml

@@ -28,10 +28,19 @@ jobs:
         run: |
           TAG=${GITHUB_REF#refs/tags/}
           API="${{ github.server_url }}/api/v1/repos/${{ github.repository }}"
+          AUTH="Authorization: token ${GITEA_TOKEN}"
+
+          # Delete existing release for this tag if any (ignore errors)
+          EXISTING_ID=$(curl -sf "${API}/releases/tags/${TAG}" -H "$AUTH" 2>/dev/null \
+            | python3 -c "import sys,json; print(json.load(sys.stdin).get('id',''))" 2>/dev/null || true)
+          if [ -n "$EXISTING_ID" ]; then
+            echo "Deleting existing release #${EXISTING_ID}"
+            curl -sf -X DELETE "${API}/releases/${EXISTING_ID}" -H "$AUTH" 2>/dev/null || true
+          fi
 
           # Create release
           curl -sf -X POST "${API}/releases" \
-            -H "Authorization: token ${GITEA_TOKEN}" \
+            -H "$AUTH" \
             -H "Content-Type: application/json" \
             -d "{
               \"tag_name\": \"${TAG}\",
@@ -39,9 +48,8 @@ jobs:
               \"body\": \"米普云航司API文档更新 ${TAG}\"
             }"
 
-          # Get release ID via python (no jq dependency)
+          # Get release ID
-          RELEASE_ID=$(curl -sf "${API}/releases/tags/${TAG}" \
+          RELEASE_ID=$(curl -sf "${API}/releases/tags/${TAG}" -H "$AUTH" \
-            -H "Authorization: token ${GITEA_TOKEN}" \
             | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])")
 
           if [ -z "$RELEASE_ID" ] || [ "$RELEASE_ID" = "None" ]; then
@@ -49,10 +57,11 @@ jobs:
             exit 1
           fi
 
+          echo "Release #${RELEASE_ID} created"
+
           # Upload docs.tar.gz
           curl -sf -X POST "${API}/releases/${RELEASE_ID}/assets?name=docs.tar.gz" \
-            -H "Authorization: token ${GITEA_TOKEN}" \
+            -H "$AUTH" \
-            -H "Content-Type: multipart/form-data" \
             -F "attachment=@/tmp/docs.tar.gz"
 
           echo "Release ${TAG} created with docs.tar.gz"