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/api/__init__.py

@@ -7,12 +7,11 @@ The onboarding endpoints are re-exported from a stable module
 
 import os
 
-# Check podcast mode early
-_is_podcast = os.getenv("ALWRITY_ENABLED_FEATURES", "").strip().lower() == "podcast"
-
-# In podcast mode, don't import heavy onboarding endpoints
+# In feature-only modes, don't import heavy onboarding endpoints
 # They trigger heavy dependencies (exa_py, etc.)
-if _is_podcast:
+_is_full_mode = os.getenv("ALWRITY_ENABLED_FEATURES", "").strip().lower() in ("", "all")
+
+if not _is_full_mode:
     __all__ = []
 else:
     from .onboarding_endpoints import (