fix: add null→None post-generation fixup, bump spec to 1.3.1

OpenAPI Generator renders JSON `null` as Python literal `null` instead
of `None`, breaking import on ~90 model fields. Added sed fixup to both
generate.sh and CI workflow. Bumped spec version to trigger new PyPI publish.

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

Author: esteininger

.github/workflows/sync-and-publish.yml

@@ -242,6 +242,10 @@ jobs:
           # Cleanup unnecessary files
           rm -f .travis.yml git_push.sh .gitlab-ci.yml || true
 
+          # Fix OpenAPI Generator null bug: JSON null renders as Python `null` instead of `None`
+          echo "🔧 Fixing null → None in generated models..."
+          find mixpeek -name '*.py' -exec sed -i 's/default=null/default=None/g' {} +
+
           # Restore custom wrapper code
           if [ -d "/tmp/_client_backup" ]; then
             echo "📦 Restoring custom wrapper..."

generate.sh

@@ -211,6 +211,10 @@ openapi-generator-cli generate \
     --package-name mixpeek \
     --additional-properties=projectName=mixpeek,packageVersion=0.81.0,packageUrl=https://github.com/mixpeek/python-sdk,library=urllib3
 
+# Fix OpenAPI Generator null bug: JSON null renders as Python `null` instead of `None`
+echo "🔧 Fixing null → None in generated models..."
+find mixpeek -name '*.py' -exec sed -i '' 's/default=null/default=None/g' {} +
+
 # Post-generation cleanup
 echo "✨ Post-generation cleanup..."
 

openapi.json

@@ -9,7 +9,7 @@
       "url": "https://mixpeek.com/contact",
       "email": "info@mixpeek.com"
     },
-    "version": "1.3.0"
+    "version": "1.3.1"
   },
   "servers": [
     {