Module env 

Environment and mode detection utilities.

Three separate concerns:

• is_testnet_mode(), “which network?” Controls chain IDs, the default catalog path selection, and other network-specific settings. Set on all testnet and staging deployments.
• test_endpoints_enabled(), “allow dangerous /test/* endpoints?” Controls spot-price manipulation, IV overrides, instrument expiry, etc. Should only be set in local dev and CI, never on deployed environments.
• faucet cargo feature: compile-time gate for the /faucet route. Enabled by test-endpoints (local dev, CI) or independently for testnet deploys. Never enabled for real-money builds (AWS staging, mainnet).

Functions

block_on_async

Run an async block synchronously from sync code.

is_testnet_mode

Returns true if running in testnet/dev mode.

test_endpoints_enabled

Returns true if dangerous test manipulation endpoints are enabled.