We need a Harbor Ecosystem Page

probably under goharbor.io/ecosystem

currently there is tremendous amounts of community projects around harbor and its extensions and things like that, adding in a ecosystem page would be beneficial for the community to find and collaborate on extensions to harbor.

Start by locating the website entry point for goharbor.io and identify how a new /ecosystem page is structured. Gather the Harbor community projects, extensions, and related ecosystem resources, then verify that the new page is reachable at goharbor.io/ecosystem and clearly helps visitors find and collaborate on them.

Written by the indexing model from the issue text.