fix: 🐛 Fix listeners and connectors mock handlers

[pierpman]

Description

Fix getListeners and getConnectors mock handlers returning empty results when limit is included in the query string.

The handlers were passing the full query params object (including pagination keys like limit) directly to filterResults. Since listener and connector records have no limit field, every record was dropped.

The fix follows the pattern already used by all other list handlers: destructure limit and offset out of the query params before passing the remaining keys to filterResults.

Issue

• Listeners and connectors tab is disabled in mock mode #600

Additional context (optional)

Affected requests example:

GET /api/v2alpha1/listeners?limit=0&serviceId=adr-5193d597cb3d8442
GET /api/v2alpha1/connectors?limit=0&serviceId=adr-5193d597cb3d8442

Previously returned { results: [], count: 0 }. Now correctly returns all matching connectors/listeners.

How to test

1. Start the dev server with mock data: yarn start
2. Open a Service details page with Listener and Connector records, such as shippingservice.
3. Confirm the Listeners tab populates with results instead of showing an empty state

Screenshots

Before:

After:

[fgiorgetti]

Tested using mock data and real network observer.