First-time supabase start and local env setup

[Mosss-OS]

Description

Run supabase start for the first time to initialize the local Supabase instance and retrieve the auto-generated local credentials.

Steps

1. Run npx supabase start from the project root
2. Copy the output SUPABASE_URL, SUPABASE_ANON_KEY, and SUPABASE_SERVICE_ROLE_KEY
3. Update these values in .env

Prerequisites

• Docker must be running locally
• Node.js and npm/npx must be installed

Once this is done, the dashboard and edge functions can run locally.