Issue 1: Sessions history not showing in left sidebar
- Converted loadChatHistoryOnLoad IIFE to named loadChatHistory() function
- Added refresh calls in loadSessionMessages() after loading messages
- Added guard to skip refresh if showing "Loading session..." state
- Sidebar now properly shows all active sessions after attachment
Issue 2: New chat session button fails with 'Failed to create session'
- Changed startNewChat() to call loadChatHistory() instead of loadChatView()
- Prevents triggering URL-based attachment logic that was causing confusion
- Sidebar now refreshes correctly without getting stuck in loading state
Also updated cache-bust version to force browser reload.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
