Add comprehensive backend debugging for email session storage

Simplify JavaScript regex patterns to avoid Python syntax warnings

Fix JavaScript regex syntax errors blocking page initialization

Add user email display to chat interface

Add email collection form to landing page with chat integration

Revert TTS client reuse to fix agent timeout issue

Optimize TTS performance with connection reuse and timing

Fix TTS audio serving - read files locally and serve via cache

Improve TTS audio proxy with multiple URL fallbacks

Fix TTS mixed content error - force HTTPS for audio URLs

Fix TTS 403 error - add audio proxy endpoint

Fix TTS response parsing - TTS is working, handle file paths correctly

Fix TTS: Use correct Gradio function name from source code

Fix TTS: Try multiple Gradio client endpoints with fallbacks

Fix TTS API endpoint - switch from Gradio predict to REST API

Fix TTS CORS issues with backend proxy endpoint

Add comprehensive logging and debugging utilities

Fix health check for JWT session backend

Initial VoiceCal.ai v1.0.0 deployment