Adding chain via light-client times out

Was playing with the CLI and saw the timeout being hit a few times before it worked in a later attempt.

dot chain add polkadot-asset-hub --light-client
Connecting to polkadot-asset-hub...
[smoldot] Smoldot v2.0.40
[smoldot] Chain initialization complete for polkadot. Name: "Polkadot". Genesis hash: 0x91b1…90c3. Chain specification starting at: 0x4f19…b7be (#29624271)
[smoldot] Parachain initialization complete for asset-hub-polkadot. Name: "Polkadot Asset Hub". Genesis hash: 0x68d5…de2f. Relay chain: polkadot (id: 1000)
Fetching metadata...
[json-rpc-asset-hub-polkadot] The JSON-RPC client has just called a JSON-RPC function from the legacy JSON-RPC API (state_getMetadata). Legacy JSON-RPC functions have loose semantics and cannot be properly implemented on a light client. You are encouraged to use the new JSON-RPC API <https://github.com/paritytech/json-rpc-interface-spec/> instead. The legacy JSON-RPC API functions will be deprecated and removed in the distant future.
[runtime-polkadot] Successfully compiled runtime. Spec version: 2000001. Size of `:code`: 1.7 MiB.
[runtime-polkadot] Finalized block runtime ready. Spec version: 2000007. Size of `:code`: 1.7 MiB.
[smoldot] Shutting down chain asset-hub-polkadot
Error: Timed out fetching metadata for "polkadot-asset-hub" after 15s. Check that the RPC endpoint is correct and reachable.

Probably as simple as increasing the timeout a bit.

Start by reproducing the dot chain add polkadot-asset-hub --light-client command and tracing where metadata fetching applies the 15-second timeout. Confirm the timeout is the failure point and define done as successful initialization when metadata takes longer than 15 seconds, with the command no longer reporting a timeout prematurely.