fix: remove folder icons, add single run for maintenance, fix batch 400

- Remove AddToFolderMenu from grid/list/table library views (folders removed)
- Add single "Run" button to MaintenanceFlowDetailPage alongside Batch Launch
- Change seed script to publish maintenance flows (batch rejects drafts)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/components/library/TreeGridView.tsx

@@ -2,7 +2,6 @@ import { Link } from 'react-router-dom'
 import { Pencil, Globe, Lock, Trash2, GitBranch, FileText, Wrench } from 'lucide-react'
 import type { TreeListItem } from '@/types'
 import { TagBadges } from '@/components/common/TagBadges'
-import { AddToFolderMenu } from './AddToFolderMenu'
 import { cn } from '@/lib/utils'
 import { usePermissions } from '@/hooks/usePermissions'
 
@@ -19,7 +18,6 @@ export function TreeGridView({
   trees,
   onStartSession,
   onTagClick,
-  onFolderCreated,
   onDeleteTree,
   onForkTree,
 }: TreeGridViewProps) {
@@ -81,7 +79,6 @@ export function TreeGridView({
               v{tree.version} · {tree.usage_count} uses
             </span>
             <div className="flex items-center gap-2">
-              <AddToFolderMenu treeId={tree.id} onFolderCreated={onFolderCreated} />
               {onForkTree && (
                 <button
                   type="button"

frontend/src/components/library/TreeListView.tsx

@@ -2,7 +2,6 @@ import { Link } from 'react-router-dom'
 import { Pencil, Globe, Lock, GitBranch, FileText, Trash2, Wrench } from 'lucide-react'
 import type { TreeListItem } from '@/types'
 import { TagBadges } from '@/components/common/TagBadges'
-import { AddToFolderMenu } from './AddToFolderMenu'
 import { cn } from '@/lib/utils'
 import { usePermissions } from '@/hooks/usePermissions'
 
@@ -20,7 +19,6 @@ export function TreeListView({
   onStartSession,
   onTagClick,
   onDeleteTree,
-  onFolderCreated,
   onForkTree,
 }: TreeListViewProps) {
   const { canEditTree } = usePermissions()
@@ -85,7 +83,6 @@ export function TreeListView({
             </div>
 
             <div className="flex items-center gap-2">
-              <AddToFolderMenu treeId={tree.id} onFolderCreated={onFolderCreated} />
               {onForkTree && (
                 <button
                   type="button"

frontend/src/components/library/TreeTableView.tsx

@@ -3,7 +3,6 @@ import { Link } from 'react-router-dom'
 import { Pencil, Globe, Lock, ChevronUp, ChevronDown, GitBranch, FileText, Trash2, Wrench } from 'lucide-react'
 import type { TreeListItem } from '@/types'
 import { TagBadges } from '@/components/common/TagBadges'
-import { AddToFolderMenu } from './AddToFolderMenu'
 import { cn } from '@/lib/utils'
 import { usePermissions } from '@/hooks/usePermissions'
 
@@ -23,7 +22,6 @@ export function TreeTableView({
   trees,
   onStartSession,
   onTagClick,
-  onFolderCreated,
   onDeleteTree,
   onSortChange,
   onForkTree,
@@ -189,7 +187,6 @@ export function TreeTableView({
               </td>
               <td className="px-4 py-3">
                 <div className="flex items-center justify-end gap-2">
-                  <AddToFolderMenu treeId={tree.id} onFolderCreated={onFolderCreated} />
                   {onForkTree && (
                     <button
                       type="button"