[FEATURE] Get list of workflows via API /v1/workflows with filter by: project_id, team_id or workspace_id

**Is your feature request related to a problem? Please describe.**
Yes. I need to manage automations across multiple projects, people, and workspaces, but there's no easy way to fetch workflows by team/org via the API. This limits visibility and scalability.

**Describe the solution you'd like**
An API endpoint like:
GET /v1/workflows?team_id=...
That returns workflows with project_name, team_name, and owner, so I can filter, organize, and connect automations across teams.

**Do you have a workaround?**
No

**Comparable features in other tools?**
GitHub: list repos by org
n8n: workflows grouped by owner/tags
Vercel: projects per team

**Additional context**
I’m building internal automation used across departments. Better filtering and grouping by team/project would simplify operations and improve governance.