feat: add missing administration tools

Add 20+ new MCP tools for repository administration:

- Repository: get_repo, repo_write (edit/delete/transfer), list_forks
- Branch Protection: read (list/get) and write (create/edit/delete)
- Webhooks: read (list/get) and write (create/edit/delete/test)
- Collaborators: read (list) and write (add/delete)
- Deploy Keys: read (list/get) and write (create/delete)
- Topics: read (list) and write (add/delete/set)
- Compare: get_compare for branch/tag/commit comparison
- Organization: org_read (get/list_teams/get_team/list_team_members/list_team_repos)
  and org_write (create_team/delete_team/add_team_member/remove_team_member/add_team_repo/remove_team_repo)
- PR enhancements: list_files and is_merged methods added to pull_request_read

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

operation/repo/slim.go

@@ -206,6 +206,146 @@ func slimTree(t *gitea_sdk.GitTreeResponse) map[string]any {
 	}
 }
 
+func slimRepoDetail(r *gitea_sdk.Repository) map[string]any {
+	if r == nil {
+		return nil
+	}
+	m := slimRepo(r)
+	m["website"] = r.Website
+	m["has_issues"] = r.HasIssues
+	m["has_wiki"] = r.HasWiki
+	m["has_pull_requests"] = r.HasPullRequests
+	m["has_projects"] = r.HasProjects
+	m["mirror"] = r.Mirror
+	m["internal"] = r.Internal
+	m["empty"] = r.Empty
+	m["size"] = r.Size
+	if r.Permissions != nil {
+		m["permissions"] = map[string]any{
+			"admin": r.Permissions.Admin,
+			"push":  r.Permissions.Push,
+			"pull":  r.Permissions.Pull,
+		}
+	}
+	if r.Parent != nil {
+		m["parent"] = map[string]any{
+			"full_name": r.Parent.FullName,
+			"html_url":  r.Parent.HTMLURL,
+		}
+	}
+	return m
+}
+
+func slimUser(u *gitea_sdk.User) map[string]any {
+	if u == nil {
+		return nil
+	}
+	return map[string]any{
+		"id":         u.ID,
+		"login":      u.UserName,
+		"full_name":  u.FullName,
+		"email":      u.Email,
+		"avatar_url": u.AvatarURL,
+		"is_admin":   u.IsAdmin,
+	}
+}
+
+func slimUsers(users []*gitea_sdk.User) []map[string]any {
+	out := make([]map[string]any, 0, len(users))
+	for _, u := range users {
+		out = append(out, slimUser(u))
+	}
+	return out
+}
+
+func slimDeployKey(k *gitea_sdk.DeployKey) map[string]any {
+	if k == nil {
+		return nil
+	}
+	return map[string]any{
+		"id":          k.ID,
+		"title":       k.Title,
+		"fingerprint": k.Fingerprint,
+		"key":         k.Key,
+		"url":         k.URL,
+		"read_only":   k.ReadOnly,
+		"created_at":  k.Created,
+	}
+}
+
+func slimDeployKeys(keys []*gitea_sdk.DeployKey) []map[string]any {
+	out := make([]map[string]any, 0, len(keys))
+	for _, k := range keys {
+		out = append(out, slimDeployKey(k))
+	}
+	return out
+}
+
+func slimBranchProtection(bp *gitea_sdk.BranchProtection) map[string]any {
+	if bp == nil {
+		return nil
+	}
+	return map[string]any{
+		"branch_name":                bp.BranchName,
+		"rule_name":                  bp.RuleName,
+		"enable_push":               bp.EnablePush,
+		"push_whitelist_usernames":   bp.PushWhitelistUsernames,
+		"push_whitelist_teams":       bp.PushWhitelistTeams,
+		"enable_merge_whitelist":     bp.EnableMergeWhitelist,
+		"merge_whitelist_usernames":  bp.MergeWhitelistUsernames,
+		"merge_whitelist_teams":      bp.MergeWhitelistTeams,
+		"required_approvals":         bp.RequiredApprovals,
+		"enable_approvals_whitelist": bp.EnableApprovalsWhitelist,
+		"block_on_rejected_reviews":  bp.BlockOnRejectedReviews,
+		"block_on_outdated_branch":   bp.BlockOnOutdatedBranch,
+		"dismiss_stale_approvals":    bp.DismissStaleApprovals,
+		"require_signed_commits":     bp.RequireSignedCommits,
+		"protected_file_patterns":    bp.ProtectedFilePatterns,
+		"unprotected_file_patterns":  bp.UnprotectedFilePatterns,
+		"created_at":                 bp.Created,
+		"updated_at":                 bp.Updated,
+	}
+}
+
+func slimBranchProtections(bps []*gitea_sdk.BranchProtection) []map[string]any {
+	out := make([]map[string]any, 0, len(bps))
+	for _, bp := range bps {
+		out = append(out, slimBranchProtection(bp))
+	}
+	return out
+}
+
+func slimHook(h *gitea_sdk.Hook) map[string]any {
+	if h == nil {
+		return nil
+	}
+	m := map[string]any{
+		"id":         h.ID,
+		"type":       h.Type,
+		"active":     h.Active,
+		"events":     h.Events,
+		"created_at": h.Created,
+		"updated_at": h.Updated,
+	}
+	if h.Config != nil {
+		if url, ok := h.Config["url"]; ok {
+			m["url"] = url
+		}
+		if ct, ok := h.Config["content_type"]; ok {
+			m["content_type"] = ct
+		}
+	}
+	return m
+}
+
+func slimHooks(hooks []*gitea_sdk.Hook) []map[string]any {
+	out := make([]map[string]any, 0, len(hooks))
+	for _, h := range hooks {
+		out = append(out, slimHook(h))
+	}
+	return out
+}
+
 func slimDirEntries(entries []*gitea_sdk.ContentsResponse) []map[string]any {
 	out := make([]map[string]any, 0, len(entries))
 	for _, c := range entries {