`init` subcommand fails with RPC endpoints defined

[0xJem]

Running treb init on an existing foundry project led to this error:

Error: failed to initialize app: failed to load foundry config: failed to parse foundry.toml: toml: line 47 (last key "rpc_endpoints.mainnet"): incompatible types: TOML value has type map[string]any; destination has type string

This is the entry in foundry.toml:

[rpc_endpoints]
# Place ALCHEMY_API_KEY in the environment or .env file
mainnet = { endpoint = "https://eth-mainnet.g.alchemy.com/v2/${ALCHEMY_API_KEY}", retries = 3, retry_backoff = 10000, compute_units_per_second = 500 }

Commenting-out the endpoints fixes the error, but it would be nice if treb-cli handled the format (which is valid for foundry/forge)