feat: add b2b_ecommerce example for auth0-ai-fastmcp

packages/auth0-ai-fastmcp/examples/b2b_ecommerce/.env.example

@@ -0,0 +1,32 @@
+# Auth0 tenant domain (no https://, no trailing slash)
+AUTH0_DOMAIN=your-tenant.us.auth0.com
+
+# Optional: switch the server into organization-required mode.
+# When set, an incoming MCP token is rejected unless its org_id claim matches this value.
+# Leave blank for a non-org deployment. See "Running in B2B org mode" in the README.
+AUTH0_ORGANIZATION_ID=
+
+# Base URL of this server, without /mcp. The MCP API identifier in Auth0 is this value plus /mcp.
+# See ../../docs/Configuration.md for why.
+MCP_RESOURCE_URL=http://localhost:3002
+
+# Downstream service audiences, each a separate API registered on the tenant
+ORDERS_AUDIENCE=https://orders.api/
+PAYMENTS_AUDIENCE=https://payments.api/
+INVENTORY_AUDIENCE=https://inventory.api/
+SHIPPING_AUDIENCE=https://shipping.api/
+CUSTOMERS_AUDIENCE=https://customers.api/
+NOTIFICATIONS_AUDIENCE=https://notifications.api/
+ANALYTICS_AUDIENCE=https://analytics.api/
+
+# OBO token cache (in-memory in this example)
+# At least 32 characters, for example openssl rand -hex 32
+TOKEN_STORE_SECRET=
+# Scope-matching mode for the OBO cache: strict or non_strict
+SCOPE_MATCHING=strict
+
+# --- OBO token exchange: a resource-server Custom API client ---
+# app_type=resource_server, resource_server_identifier set to MCP_RESOURCE_URL plus /mcp, with the OBO
+# exchange profile enabled and user-delegated client grants to the downstream APIs.
+OBO_CLIENT_ID=
+OBO_CLIENT_SECRET=