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/repository_search_test.go

@@ -112,10 +112,10 @@ func TestRepositorySearchSendsExplicitFalseFilters(t *testing.T) {
 		_, _ = w.Write([]byte(`{"data":[]}`))
 	}))
 	value := false
-	items, err := (Repositories{Client: client}).Search(context.Background(), RepositorySearchOptions{Query: "two words", Private: &value, Archived: &value, Topic: true, Limit: 30, Page: 1})
+	page, err := (Repositories{Client: client}).Search(context.Background(), RepositorySearchOptions{Query: "two words", Private: &value, Archived: &value, Topic: true, Limit: 30, Page: 1})
 	require.NoError(t, err)
-	require.NotNil(t, items)
-	require.Empty(t, items)
+	require.NotNil(t, page.Items)
+	require.Empty(t, page.Items)
 }
 
 func TestRepositorySearchScopesOwner(t *testing.T) {
@@ -136,7 +136,7 @@ func TestRepositorySearchScopesOwner(t *testing.T) {
 			_, _ = w.Write([]byte(`{"data":[{"id":4,"full_name":"acme/tool"}]}`))
 		}
 	}))
-	items, err := (Repositories{Client: client}).Search(context.Background(), RepositorySearchOptions{Owner: "acme", Kind: "fork", Sort: "updated", Order: "desc", Limit: 30, Page: 1})
+	page, err := (Repositories{Client: client}).Search(context.Background(), RepositorySearchOptions{Owner: "acme", Kind: "fork", Sort: "updated", Order: "desc", Limit: 30, Page: 1})
 	require.NoError(t, err)
-	require.Equal(t, []Repository{{ID: 4, FullName: "acme/tool"}}, items)
+	require.Equal(t, []Repository{{ID: 4, FullName: "acme/tool"}}, page.Items)
 }