Restructure: rule-based decision engine + template slot-filling architecture

CRITICAL FIX: Correct model names to gemini-2.5-flash-preview-04-17 (not deprecated)

Update: Fix GROQ model name in judge_simulator (mixtral instead of decommissioned llama)

Fix: update contact_email to real address and model name to gemini-2.0-flash-exp

Fix: add 403 (Forbidden) to retriable errors for Gemini fallback

Fix: remove false-positive Hinglish tokens (me, to) and require 3+ hits for Hindi detection

Fix: correct CTA schema to match actual values (open_ended, call_action, question)

Fix: hostile handler returns 'end' instead of 'send'

Add debug logging to composer filters

Add 404 to retriable errors to enable GROQ fallback

Try gemini-2.0-flash-exp model

Fix Gemini model names to real APIs

Add debug logging for context persistence

Add tick debug logging

Fix Gemini model names

Initial Vera bot submission