docs(consumer): add typedocs

packages/consumer/mod.test.ts

···
     expect(consumer.did).toEqual("did:plc:test123");
     expect(consumer.keypair).toBeUndefined();
     expect(consumer.rpc).toBeDefined();
-    expect(consumer.manager).toBeDefined();
   },
 });
 

packages/consumer/mod.ts

···
   LocalKeyPair,
 } from "./types.ts";
 
+/**
+ * Creates a `Consumer` instance with all necessary requirements. This is the recommended way to construct a `Consumer`.
+ *
+ * @description Resolves the user's DID using Slingshot, instantiates an `@atcute/client` instance, creates an initial session, and then returns a new Consumer.
+ * @param {ConsumerOptions} options - Information for constructing the underlying XRPC client
+ * @returns {Promise<Consumer>} A Cistern consumer client with an authorized session
+ */
 export async function createConsumer(
   options: ConsumerOptions,
 ): Promise<Consumer> {
···
  * Client for generating keys and decoding Cistern memos.
  */
 export class Consumer {
+  /** DID of the user this consumer acts on behalf of */
   did: Did;
+
+  /** `@atcute/client` instance with credential manager */
+  rpc: Client<XRPCQueries, XRPCProcedures>;
+
+  /** Private key used for decrypting and the AT URI of its associated public key */
   keypair?: LocalKeyPair;
-  rpc: Client<XRPCQueries, XRPCProcedures>;
-  manager: CredentialManager;
 
   constructor(params: ConsumerParams) {
     this.did = params.miniDoc.did;
···
       }
       : undefined;
     this.rpc = params.rpc;
-    this.manager = params.manager;
   }
 
   /**