Fix release asset upload corrupted by echo of API response

The v1.1.0 release job created the release then died with a jq parse error
before uploading either package.

The runner executes run: steps with a shell whose echo expands backslash
escapes. Passing the API response through `echo "$BODY" | jq` turned the \n
escapes in the release body field into real newlines, producing invalid JSON.
This only surfaced now because the release body became multi-line; every
earlier release had a single-line body with no \n to expand.

Keep the response in a file and read it with jq directly, so no JSON passes
through echo. Also fall back to the existing release for the tag when creation
returns non-2xx, so a partially completed release can be re-run.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.gitea/workflows/release.yaml

@@ -82,23 +82,32 @@ jobs:
             "" \
             "- \`${{ steps.jprm.outputs.jf11_artifact_name }}\` - Jellyfin 10.11.x" \
             "- \`${{ steps.jprm.outputs.jf12_artifact_name }}\` - Jellyfin 12.0.x")
-          RESPONSE=$(curl -s -w "\n%{http_code}" -X POST \
+          API_URL="${GITEA_URL}/api/v1/repos/${REPO_OWNER}/${REPO_NAME}"
+
+          # Keep the API response in a file: it contains \n escapes, and `echo` in
+          # this shell expands those into real newlines, which corrupts the JSON.
+          HTTP_CODE=$(curl -s -o release-response.json -w "%{http_code}" -X POST \
             -H "Authorization: token ${GITEA_TOKEN}" \
             -H "Content-Type: application/json" \
-            "${GITEA_URL}/api/v1/repos/${REPO_OWNER}/${REPO_NAME}/releases" \
+            "${API_URL}/releases" \
             -d "$(jq -n --arg tag "$VERSION" --arg name "Release $VERSION" --arg body "$RELEASE_BODY" '{tag_name: $tag, name: $name, body: $body, draft: false, prerelease: false}')")
 
-          HTTP_CODE=$(echo "$RESPONSE" | tail -n1)
-          BODY=$(echo "$RESPONSE" | sed '$d')
+          if [ "$HTTP_CODE" -lt 200 ] || [ "$HTTP_CODE" -ge 300 ]; then
+            echo "Create release returned HTTP ${HTTP_CODE}:"
+            cat release-response.json
+            echo "Falling back to an existing release for ${VERSION}..."
+            curl -sf -o release-response.json \
+              -H "Authorization: token ${GITEA_TOKEN}" \
+              "${API_URL}/releases/tags/${VERSION}"
+          fi
 
-          if [ "$HTTP_CODE" -ge 200 ] && [ "$HTTP_CODE" -lt 300 ]; then
-            RELEASE_ID=$(echo "$BODY" | jq -r '.id')
-            echo "Created release with ID: ${RELEASE_ID}"
-          else
-            echo "Failed to create release. HTTP ${HTTP_CODE}"
-            echo "$BODY"
+          RELEASE_ID=$(jq -r '.id // empty' release-response.json)
+          if [ -z "${RELEASE_ID}" ]; then
+            echo "Could not determine release ID from:"
+            cat release-response.json
             exit 1
           fi
+          echo "Using release ID: ${RELEASE_ID}"
 
           # Upload plugin artifacts (one per supported Jellyfin generation)
           for ASSET in \
@@ -109,9 +118,10 @@ jobs:
               -H "Authorization: token ${GITEA_TOKEN}" \
               -H "Content-Type: application/zip" \
               --data-binary "@${ASSET}" \
-              "${GITEA_URL}/api/v1/repos/${REPO_OWNER}/${REPO_NAME}/releases/${RELEASE_ID}/assets?name=$(basename "${ASSET}")"
+              "${API_URL}/releases/${RELEASE_ID}/assets?name=$(basename "${ASSET}")"
           done
 
+          rm -f release-response.json
           echo "Release created successfully!"
           echo "View at: ${GITEA_URL}/${REPO_OWNER}/${REPO_NAME}/releases/tag/${{ steps.get_version.outputs.version }}"