Update README.md

README.md

@@ -9,3 +9,24 @@ short_description: this space is for trackit
 ---
 
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+
+
+# ========================
+# Supabase (Backend Secure)
+# ========================
+SUPABASE_URL=https://xyzcompany.supabase.co
+SUPABASE_SERVICE_ROLE_KEY=eyJ...            # full access, backend only
+DATABASE_URL=postgresql://postgres:password@db.xyzcompany.supabase.co:6543/postgres
+
+# ========================
+# LangChain / LangGraph
+# ========================
+LANGCHAIN_API_KEY=ls_xxx
+LANGCHAIN_TRACING_V2=true
+LANGCHAIN_PROJECT=SlipScanner
+
+# ========================
+# Internal Security
+# ========================
+JWT_SECRET=superlongrandomstring            # validate Supabase user JWTs
+