pr_msg_7.txt

Fixes #88

This PR completes Migration Phase 7 by introducing Supabase Edge Functions for handling secrets and secure logic (Google Gemini API & Agora App Certificates) outside the client application.

**Changes included:**
1. Created 4 new standalone Supabase Edge Functions (\deno\/\	ypescript\):
   - \generate-insight\ (Provides structured JSON context-aware predictions, suggestions, and letters)
   - \generate-chat-response\ (Processes free-form AI chats)
   - \get-agora-credentials\ (Grants 24h RTC Tokens as PUBLISHER)
   - \generate-encouragement\ (Produces concise, uplifting sentiment descriptions via Gemini flash)
2. Refactored \AiRepository\ from Serverpod AI endpoints to securely execute the Supabase edge functions natively.
3. Updated \SocialsRepository\ to obtain Agora temporary tokens via Supabase.
4. Corrected the edge-function route inside \GlobalMirrorRepository\ for generating cluster encouragements.
5. All code perfectly conforms strictly to Dart AST format checks!

**Required subsequent setup logic (Not in codebase):**
- Execute \supabase secrets set GEMINI_API_KEY=your_key AGORA_APP_ID=id AGORA_APP_CERT=cert\ from the Supabase CLI to hydrate function requirements.
- Execute \supabase functions deploy\ across all 4 environments to release them to production.