fix(repo): reject --repo on commands that act on no repository

tea repo list -R acme/service listed the account's repositories and
tea repo create foo -R alice/project created alice/foo: the flag was
silently ignored. repo list, repo create, repo migrate and search repo
now fail with a usage error that suggests the intended command, such as
"--repo is not used by repo list; did you mean: tea repo list acme".

repo list takes the owner as an argument (--owner still works), and
repo create accepts OWNER/NAME, creating in the organization OWNER.

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

internal/app/repository_argument_test.go

@@ -6,6 +6,7 @@ package app
 import (
 	"context"
 	"net/http"
+	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -40,3 +41,48 @@ func TestRepositoryCommandsAcceptPositionalRepository(t *testing.T) {
 		})
 	}
 }
+
+func TestCommandsWithoutRepositoryRejectRepoFlag(t *testing.T) {
+	for _, test := range []struct {
+		args []string
+		want string
+	}{
+		{[]string{"repo", "list", "-R", "acme/service"}, "--repo is not used by repo list; did you mean: tea repo list acme"},
+		{[]string{"repo", "create", "foo", "-R", "alice/project", "--yes"}, "--repo is not used by repo create; did you mean: tea repo create alice/foo"},
+		{[]string{"repo", "migrate", "https://example.com/x.git", "--name", "x", "--repo", "acme/x"}, "--repo is not used by repo migrate; did you mean: tea repo migrate URL --owner acme"},
+		{[]string{"search", "repo", "tea", "-R", "acme/x"}, "--repo is not used by search repo; did you mean: tea search repo --owner acme"},
+	} {
+		t.Run(strings.Join(test.args[:2], " "), func(t *testing.T) {
+			requireUsageBeforeRequests(t, test.want, test.args...)
+		})
+	}
+}
+
+func TestRepositoryOwnerArguments(t *testing.T) {
+	var requests []string
+	server := newAuthenticatedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		requests = append(requests, r.Method+" "+r.URL.Path)
+		switch {
+		case r.URL.Path == "/api/v1/orgs/acme":
+			_, _ = w.Write([]byte(`{"id":3,"name":"acme"}`))
+		case r.Method == http.MethodGet:
+			_, _ = w.Write([]byte(`[]`))
+		default:
+			_, _ = w.Write([]byte(`{"full_name":"acme/tool"}`))
+		}
+	}))
+	defer server.Close()
+	for _, test := range []struct {
+		args []string
+		want string
+	}{
+		{[]string{"repo", "list", "acme"}, "GET /api/v1/orgs/acme/repos"},
+		{[]string{"repo", "create", "acme/tool"}, "POST /api/v1/orgs/acme/repos"},
+		{[]string{"repo", "create", "alice/tool"}, "POST /api/v1/user/repos"},
+	} {
+		requests = nil
+		deps, _, _ := serverDeps(t, server.URL)
+		require.NoError(t, Execute(context.Background(), deps, append(test.args, "--no-input", "--json")))
+		require.Equal(t, test.want, requests[len(requests)-1], test.args)
+	}
+}