refactor: remove features beyond the UX plan

Drop additions that the UX plan does not ask for:

- the interactive label edit form; label edit now requires a flag
- label clone and the skip mode of label creation it needed
- repo rename rewriting the Git remote or tea.repository; it now
  warns that the remote still points to the old name
- the extra "source" remote on clones of pull mirrors
- run artifact download, which duplicates run download --zip
- 256-color and 24-bit label swatches; colors stay ANSI 16
- config list --show-source (config get keeps it)
- the membership and access GETs before team member/repo add and
  remove; Gitea's PUT and DELETE are idempotent

label edit/delete keep --by-name: it is the only way to address a
label whose name is a number that is also another label's ID.

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

internal/app/labels.go

@@ -42,7 +42,7 @@ addressed by name or ID.`}
 	}
 	complete := a.completeScopedLabels(&org)
 	group.AddCommand(a.labelListCommand(scope), a.labelCreateCommand(scope), a.labelEditCommand(scope, complete), a.labelDeleteCommand(scope, complete),
-		a.labelImportCommand(scope), a.labelCloneCommand(scope), a.labelExportCommand(scope))
+		a.labelImportCommand(scope), a.labelExportCommand(scope))
 	return group
 }
 
@@ -240,16 +240,14 @@ func (a *application) reportLabel(cmd *cobra.Command, s services.Labels, item se
 func (a *application) labelEditCommand(scope labelScope, complete cobra.CompletionFunc) *cobra.Command {
 	var fields labelFields
 	var byName bool
-	cmd := &cobra.Command{Use: "edit <label>", Short: "Edit a label", Long: "Edit a label. Without flags on a terminal, a form starts from the current values.", Example: `$ tea label edit bug --name defect --color b60205
+	cmd := &cobra.Command{Use: "edit <label>", Short: "Edit a label", Example: `$ tea label edit bug --name defect --color b60205
 $ tea label edit "kind/question" --description "Further information is requested"
 $ tea label edit old-stuff --archived`, Annotations: map[string]string{"tea.arguments": labelArguments}, Args: argsExact(1), RunE: func(cmd *cobra.Command, args []string) error {
 		opts, err := fields.options(cmd)
 		if err != nil {
 			return err
 		}
-		prompt := a.canPrompt()
-		form, hasForm := a.deps.Prompter.(terminal.LabelForm)
-		if opts == (services.LabelOptions{}) && (!prompt || !hasForm) {
+		if opts == (services.LabelOptions{}) {
 			return errNothingToEdit
 		}
 		s, err := scope(cmd)
@@ -260,16 +258,6 @@ $ tea label edit old-stuff --archived`, Annotations: map[string]string{"tea.argu
 		if err != nil {
 			return err
 		}
-		if opts == (services.LabelOptions{}) {
-			current := found[0]
-			values, err := form.EditLabel(cmd.Context(), "Editing "+labelName(s, current), terminal.LabelFormValues{
-				Name: current.Name, Color: current.Color, Description: current.Description, Exclusive: current.Exclusive, Archived: current.Archived,
-			})
-			if err != nil {
-				return err
-			}
-			opts = services.LabelOptions{Name: &values.Name, Color: &values.Color, Description: &values.Description, Exclusive: &values.Exclusive, Archived: &values.Archived}
-		}
 		item, err := s.Edit(cmd.Context(), found[0].ID, opts)
 		if err != nil {
 			return err
@@ -345,12 +333,12 @@ func (a *application) importLabels(cmd *cobra.Command, scope labelScope, file st
 	if err != nil {
 		return err
 	}
-	return a.createLabels(cmd, s, rows, force, false)
+	return a.createLabels(cmd, s, rows, force)
 }
 
 // createLabels creates each label in rows, continuing past failures. A label that exists already
-// is updated with force, skipped with skip, and fails otherwise.
-func (a *application) createLabels(cmd *cobra.Command, s services.Labels, rows []services.LabelOptions, force, skip bool) error {
+// is updated with force and fails otherwise.
+func (a *application) createLabels(cmd *cobra.Command, s services.Labels, rows []services.LabelOptions, force bool) error {
 	existing, err := s.All(cmd.Context())
 	if err != nil {
 		return err
@@ -358,11 +346,7 @@ func (a *application) createLabels(cmd *cobra.Command, s services.Labels, rows [
 	outcome := map[string]string{}
 	results, failures := applyBatch(cmd, rows, func(row services.LabelOptions) string { return "label " + strconv.Quote(*row.Name) }, func(row services.LabelOptions) (services.Label, error) {
 		item, updated, err := s.CreateUnique(cmd.Context(), existing, row, force)
-		var conflict *services.ConflictError
 		switch {
-		case skip && errors.As(err, &conflict) && conflict.Reason == services.ReasonExists:
-			outcome[*row.Name] = "Skipped"
-			return services.Label{Name: *row.Name}, nil
 		case err != nil:
 			return item, err
 		case updated:
@@ -373,10 +357,6 @@ func (a *application) createLabels(cmd *cobra.Command, s services.Labels, rows [
 		}
 		return item, nil
 	}, func(item services.Label) {
-		if outcome[item.Name] == "Skipped" {
-			a.warn(cmd, "Skipped %s: it exists already", labelName(s, item))
-			return
-		}
 		a.done(cmd, "%s %s", outcome[item.Name], labelName(s, item))
 	})
 	if a.options.json != "" {
@@ -385,30 +365,6 @@ func (a *application) createLabels(cmd *cobra.Command, s services.Labels, rows [
 	return errors.Join(failures...)
 }
 
-func (a *application) labelCloneCommand(scope labelScope) *cobra.Command {
-	var force bool
-	cmd := &cobra.Command{Use: "clone <source-repository>", Short: "Copy the labels of another repository", Long: `Create the labels of the source repository in the selected repository or organization.
-Labels that exist already are skipped unless --force updates them.`, Example: `$ tea label clone alice/project
-$ tea label clone alice/project --repo alice/new --force`, Args: argsExact(1), RunE: func(cmd *cobra.Command, args []string) error {
-		s, err := scope(cmd)
-		if err != nil {
-			return err
-		}
-		source, err := (services.Labels{Client: s.Client, Repository: args[0]}).All(cmd.Context())
-		if err != nil {
-			return err
-		}
-		rows := make([]services.LabelOptions, len(source))
-		for i, item := range source {
-			rows[i] = services.LabelOptions{Name: &item.Name, Color: &item.Color, Description: &item.Description, Exclusive: &item.Exclusive}
-		}
-		return a.createLabels(cmd, s, rows, force, true)
-	}}
-	cmd.Flags().BoolVarP(&force, "force", "f", false, "Update labels that exist already")
-	cmd.ValidArgsFunction = a.completeRepos()
-	return cmd
-}
-
 // completeScopedLabels completes the label names of the repository or, with --org, of the
 // organization that *org names.
 func (a *application) completeScopedLabels(org *string) cobra.CompletionFunc {