fix: WYSIWYG editor, content generation, and writing assistant bug fixes

- Fix text selection menu not showing: wire contentRef via inputRef on multiline TextField
- Fix blog title not truncating: add min-w-0 for flex item overflow
- Fix outline generation 500: escape curly braces in f-string prompt template
- Fix content generation 'NoneType not callable': replace SessionLocal() with get_session_for_user(), add db param to MediumBlogGenerator, fix signature mismatch in database_task_manager
- Fix writing assistant suggest 500: add auth + user_id to API endpoint and service, replace sync requests with httpx.AsyncClient
- Fix hallucination detector 404: explicitly include router in main.py and app.py
- Fix missing error_data in task failure responses
- Hide CopilotKit web inspector button
- Remove hardcoded fallback suggestions from SmartTypingAssist
- Fix stale closure refs in SmartTypingAssist handleTypingChange
- Add two-column editor layout, stats bar, section hover menu
- Various subscription, billing, and research module improvements

backend/alwrity_utils/feature_registry.py

@@ -51,6 +51,13 @@ FEATURE_GROUPS: Dict[str, FeatureGroup] = {
             "api.content_planning.strategy_copilot:router",
         ),
     ),
+    "blog_writer": FeatureGroup(
+        features=("blog_writer",),
+        routers=(
+            "api.blog_writer.router:router",
+            "api.blog_writer.seo_analysis:router",
+        ),
+    ),
 }
 
 
@@ -59,5 +66,6 @@ PROFILE_GROUP_MAP: Dict[str, Tuple[str, ...]] = {
     "core": ("core",),
     "podcast": ("core", "podcast"),
     "youtube": ("core", "youtube"),
+    "blog_writer": ("core", "blog_writer"),
     "planning": ("core", "content_planning"),
 }