TypeError: Cannot read properties of undefined (reading 'description')

**Bug severity**
2

**Describe the bug**
My agent's open-api route fails because of `TypeError: Cannot read properties of undefined (reading 'description')`. I manually compared the `agent.availableMethods()` and `agent.getSchema().components.methods.keys()` and they look similar. Note that `veramo server` CLI command is able to fetch open-api schema for the same agent.

**To Reproduce**
Steps to reproduce the behaviour:
1. Agent

```
export const agent = createAgent({...})
```
3. remote setup

```
const exposedMethods = agent.availableMethods()

const schemaRouter = ApiSchemaRouter({
basePath,
exposedMethods,
});

const app = express();
app.use(basePath, requestAgentRouter, agentRouter);
app.use(schemaPath, requestAgentRouter, schemaRouter);
```

**Observed behaviour**
Stack trace at `basepath/open-api.json`

```
TypeError: Cannot read properties of undefined (reading 'description')
at getOpenApiSchema (@veramo/remote-client/src/openApi.ts:34:61)
at node_modules/@veramo/remote-server/src/api-schema-router.ts:52:29
at Layer.handle [as handle_request] (node_modules/express/lib/router/layer.js:95:5)
at next (node_modules/express/lib/router/route.js:149:13)
at Route.dispatch (/node_modules/express/lib/router/route.js:119:3)
at Layer.handle [as handle_request] (node_modules/express/lib/router/layer.js:95:5)
at node_modules/express/lib/router/index.js:284:15
at Function.process_params (/node_modules/express/lib/router/index.js:346:12)
at next (node_modules/express/lib/router/index.js:280:10)
at Function.handle (/node_modules/express/lib/router/index.js:175:3)
```

**Expected behaviour**
Same as `veramo sever` CLI

**Versions (please complete the following information):**
- Veramo: ^6.0.0
- veramo remote server "^5.6.0"
- Browser chrome
- Node v18.17.1