domo: AI-optimize MCP action set

Domo has no actions built in Pipedream today — there's nothing an agent can do with this integration yet. We'd like to build an initial action set so an agent can manage datasets, dashboards, and users, and so each tool is easy for an agent to configure.

A few things an agent can't do today, for example:
- Query or update a dataset
- List dashboards/cards
- List or manage users
- Trigger a dataflow

**API reference:** https://developer.domo.com/

Note: this integration uses a shared connection that Pipedream manages centrally, so scope changes aren't self-service — see the linked sub-issue for details.

**Add marker:**
When a component is AI-optimized, add this as the first line of the file:
```
// x-pd-ai: optimized
```
Add it to each action file and to the app's `.mjs` file.

Start with the Domo API reference and inspect the repository's existing action files and the app's .mjs file to understand the integration structure. Add an initial action set for datasets, dashboards or cards, users, and dataflows, making each tool easy to configure, and put the x-pd-ai: optimized marker first in every action file and the app .mjs file.

Written by the indexing model from the issue text.