Lists the assets supported by the Tenbin platform. Returns the same catalogue on every deployment, regardless of which asset this pod serves — use it to discover newly launched assets without a code change.

The asset field is the value to use as the {asset} path segment of the per-asset API base URL api.tenbin.xyz/{asset} — the lowercase token ticker, e.g. tgld → api.tenbin.xyz/tgld.

Market-maker onboarding flow:

1. GET api.tenbin.xyz/{asset}/supported-assets — list every supported asset.
2. For each, GET api.tenbin.xyz/{asset}/deployment — fetch that asset's contract addresses (controller, domain_separator, collateral, token, staked_token) needed to quote and submit orders.

Each entry also carries the asset's mainnet controller address here as a convenience (the EIP-712 verifying contract for order submission); the full, environment-correct contract set is served by /deployment.