Function pinCid

pinCid(client: KuboRPCClient, cid: string, recursive: boolean): Promise<void>
Pin a CID to ensure it persists in local IPFS storage.

Port of pin_cid() from ipfs/value.rs lines 31-38.
Parameters
- client: KuboRPCClient
  Kubo RPC client
- cid: string
  Content identifier to pin
- recursive: boolean
  Whether to recursively pin linked content
Returns Promise<void>
- Defined in ipfs/value.ts:75