feat: add webhook, repo delete/search, admin, pr clean/resolve/review-comments

Second pass of tea-parity work:

- fgj webhook {list,create,update,delete}: full CRUD over repo webhooks.
  Create supports all standard hook types (gitea, slack, discord, etc.),
  event selection, content type, secret, branch filter, auth header.
  Update is partial — flags you omit leave existing config unchanged.
- fgj repo delete: type-to-confirm deletion; --yes skips for scripts;
  refuses without a TTY unless --yes is passed.
- fgj repo search: SDK SearchRepos with query, topic/description,
  private/archived, --type (source/fork/mirror), owner, sort/order.
- fgj admin user list: admin-gated user enumeration.
- fgj pr clean: delete the local branch from 'pr checkout'. Refuses
  if the PR is still open (use --force) or if the branch is currently
  checked out.
- fgj pr review-comments: list inline review comments across every
  review on a PR (ListPullReviews + ListPullReviewComments per review).
- fgj pr resolve / unresolve: mark review comments as (un)resolved.
  Uses raw POST since SDK v0.22.1 predates these endpoints; requires
  Forgejo 8.x+ / Gitea 1.22+ server-side.

All share the standard parseRepo + config.Load + NewClientFromConfig
pattern; list commands support --json / --jq.

cmd/repo_delete.go

@@ -0,0 +1,78 @@
+package cmd
+
+import (
+	"fmt"
+
+	"forgejo.zerova.net/public/fgj-sid/internal/api"
+	"forgejo.zerova.net/public/fgj-sid/internal/config"
+	"github.com/spf13/cobra"
+)
+
+var repoDeleteCmd = &cobra.Command{
+	Use:     "delete [owner/name]",
+	Aliases: []string{"rm"},
+	Short:   "Delete a repository",
+	Long: `Delete a repository. This is irreversible and removes all issues, PRs,
+wikis, and release artifacts.
+
+For safety, you must either pass -y/--yes, or type the full owner/name
+string when prompted.`,
+	Example: `  # Delete a repository (prompted confirmation)
+  fgj repo delete owner/name
+
+  # Delete without confirmation (scripts)
+  fgj repo delete owner/name --yes`,
+	Args: cobra.MaximumNArgs(1),
+	RunE: runRepoDelete,
+}
+
+func init() {
+	repoCmd.AddCommand(repoDeleteCmd)
+	repoDeleteCmd.Flags().BoolP("yes", "y", false, "Skip the type-to-confirm prompt")
+}
+
+func runRepoDelete(cmd *cobra.Command, args []string) error {
+	var target string
+	if len(args) == 1 {
+		target = args[0]
+	}
+	owner, name, err := parseRepo(target)
+	if err != nil {
+		return err
+	}
+
+	cfg, err := config.Load()
+	if err != nil {
+		return err
+	}
+	client, err := api.NewClientFromConfig(cfg, "", getDetectedHost(), getCwd())
+	if err != nil {
+		return err
+	}
+
+	slug := fmt.Sprintf("%s/%s", owner, name)
+	skipConfirm, _ := cmd.Flags().GetBool("yes")
+
+	if !skipConfirm {
+		if !ios.IsStdinTTY() {
+			return fmt.Errorf("refusing to delete %s without a TTY; pass --yes to confirm non-interactively", slug)
+		}
+		prompt := fmt.Sprintf("Type the full repo slug to confirm deletion (%s): ", slug)
+		answer, err := promptLine(prompt)
+		if err != nil {
+			return err
+		}
+		if answer != slug {
+			fmt.Fprintln(ios.ErrOut, "Confirmation mismatch; aborting.")
+			return nil
+		}
+	}
+
+	if _, err := client.DeleteRepo(owner, name); err != nil {
+		return fmt.Errorf("failed to delete %s: %w", slug, err)
+	}
+
+	cs := ios.ColorScheme()
+	fmt.Fprintf(ios.Out, "%s Deleted %s\n", cs.SuccessIcon(), slug)
+	return nil
+}