feat(repo): show repository columns, state and README

repo list and search repo printed bare names. They now render a table
with NAME, DESCRIPTION, INFO (public or private, fork, mirror, template,
archived, empty) and UPDATED under "Showing N of M repositories ...", an
empty-state message on stderr, and tab-separated rows with the URL when
piped. --type, --sort and --order complete and validate their values.

repo view shows the visibility and kind badges, stars, forks, open
issues and pull requests, the parent of a fork, the source of a mirror,
the default branch and the clone URLs, followed by the README of the
default branch (or --branch), rendered on a terminal. The repository
JSON gains empty, stars_count, forks_count, open_issues_count,
open_pr_count, topics and updated_at.

Signed-off-by: bircni <bircni@icloud.com>

internal/services/convert.go

@@ -26,6 +26,8 @@ func repositoryFrom(repo *gitea.Repository) Repository {
 		FullName: repo.FullName, Description: repo.Description, URL: repo.HTMLURL, Private: repo.Private,
 		DefaultBranch: repo.DefaultBranch, CloneURL: repo.CloneURL, SSHURL: repo.SSHURL,
 		Archived: repo.Archived, Template: repo.Template, Fork: repo.Fork, Mirror: repo.Mirror, OriginalURL: repo.OriginalURL,
+		Empty: repo.Empty, Stars: repo.Stars, Forks: repo.Forks, OpenIssues: repo.OpenIssues, OpenPulls: repo.OpenPulls,
+		Topics: repo.Topics, UpdatedAt: timestamp(repo.Updated),
 	}
 	if repo.Parent != nil {
 		parent := repositoryFrom(repo.Parent)