refactor: load settings once per run and reuse shared helpers

The application caches the settings snapshot and reloads it only after
an update through the store, so output and prompt helpers no longer
read and parse config.yml and hosts.yml several times per command.
canPrompt and chooser replace the inline prompt-policy checks.

Checks are tallied by one services.Tally, terminal.Plural replaces the
two app copies, refKind.article/noun replace the comment group's own
words, list commands use servicePage, and web URLs are built by
repositoryURL and webURL in browser.go.

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

internal/app/prompts.go

@@ -12,13 +12,25 @@ import (
 // DefaultYes, destructive ones keep the default no, and irreversible ones set Typed. A declined
 // confirmation returns terminal.ErrCanceled.
 func (a *application) confirmAction(cmd *cobra.Command, c terminal.Confirmation) error {
-	s, err := a.deps.Settings.Load()
+	s, err := a.settings()
 	if err != nil {
 		return err
 	}
 	return terminal.ConfirmAction(cmd.Context(), c, a.options.yes, a.deps.Streams, a.policy(s), a.deps.Prompter)
 }
 
+// canPrompt reports whether tea may ask questions on this terminal.
+func (a *application) canPrompt() bool {
+	s, err := a.settings()
+	return err == nil && a.policy(s).CanPrompt(a.deps.Streams)
+}
+
+// chooser returns the prompter's selection prompt when prompts are allowed.
+func (a *application) chooser() (terminal.Chooser, bool) {
+	chooser, ok := a.deps.Prompter.(terminal.Chooser)
+	return chooser, ok && a.canPrompt()
+}
+
 // deleteConfirmed asks to delete subject, such as `label "bug" from alice/x`, deletes it with del
 // and reports "Deleted <subject>".
 func (a *application) deleteConfirmed(cmd *cobra.Command, subject string, del func() error) error {
@@ -36,7 +48,7 @@ func (a *application) deleteConfirmed(cmd *cobra.Command, subject string, del fu
 // until the answer is non-empty and validate, when set, accepts it. Without prompts it returns a
 // usage error naming --flag. It reports whether it prompted.
 func (a *application) requireInput(cmd *cobra.Command, value *string, flag, label string, validate func(string) error) (bool, error) {
-	s, err := a.deps.Settings.Load()
+	s, err := a.settings()
 	if err != nil {
 		return false, err
 	}