feat: .env template for db connections

Author: rickytang666

.env.example

@@ -0,0 +1,13 @@
+# Supabase Configuration
+# Get these from: https://app.supabase.com/project/_/settings/api
+
+# Your Supabase project URL
+SUPABASE_URL=https://your-project-ref.supabase.co
+
+# Your Supabase anonymous/public key (safe to use in client apps)
+SUPABASE_ANON_KEY=your-anon-key-here
+
+# Notes:
+# - iOS: Add these to your Xcode project (e.g., Config.swift or .xcconfig)
+# - Web: Create .env.local and copy these values
+# - Never commit the actual .env or .env.local files with real credentials

.gitignore

@@ -2,6 +2,7 @@
 .env
 .env.local
 .env*.local
+!.env.example
 
 # dependencies
 node_modules/
@@ -37,4 +38,5 @@ Thumbs.db
 
 # markdown
 *.md
-!README.md
+!README.md
+!supabase/testing.md