feat(plan): Gate-Designer UX — Typ ändern, Löschen, Kanten, Status

Macht den Zielzustands-Designer bedienbar: Overlay-Panel statt schmalem Split, Gate-Typ im Edit, Löschen mit Schutz für erreichte Gates, Kantentyp-Wechsel mit Legende und visuelle Kennzeichnung aktiv/blockiert/abgeschlossen.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/routers/roadmap.py

@@ -299,9 +299,13 @@ def delete_roadmap_item(
     item_id: str,
     ctx: TenantContext = Depends(require_capability("kairo.milestone.manage")),
 ):
-    if not roadmap_service.delete_roadmap_item(
+    try:
-        tenant_id=ctx.tenant_id, item_id=item_id, user_id=ctx.user_id
+        deleted = roadmap_service.delete_roadmap_item(
-    ):
+            tenant_id=ctx.tenant_id, item_id=item_id, user_id=ctx.user_id
+        )
+    except ValueError as exc:
+        raise HTTPException(status_code=400, detail=str(exc)) from exc
+    if not deleted:
         raise HTTPException(status_code=404, detail="RoadmapItem nicht gefunden")
 
 

backend/services/roadmap.py

@@ -461,6 +461,14 @@ def update_roadmap_item(
 def delete_roadmap_item(
     *, tenant_id: str, item_id: str, user_id: Optional[str] = None
 ) -> bool:
+    existing = get_roadmap_item(tenant_id=tenant_id, item_id=item_id)
+    if not existing:
+        return False
+    if existing.get("status") in TERMINAL_STATUSES:
+        raise ValueError(
+            "Erreichte oder terminal abgeschlossene Gates können nicht gelöscht werden"
+        )
+
     conn = get_connection()
     try:
         with conn.cursor() as cur:

backend/tests/test_ap14_roadmap.py

@@ -86,6 +86,13 @@ def test_verify_reached_requires_evidence(client):
     assert ok.json()["status"] == "reached"
     assert ok.json()["verify_reason"] in ("criteria_ready", "evidence_accepted")
 
+    blocked_delete = client.delete(
+        f"/api/roadmap-items/{item['id']}",
+        headers=_auth(token),
+    )
+    assert blocked_delete.status_code == 400
+    assert "nicht gelöscht" in blocked_delete.json()["detail"].lower() or "terminal" in blocked_delete.json()["detail"].lower()
+
 
 def test_milestone_compat_api_uses_roadmap(client):
     user = provision_user_in_tenant(tenant_role="member")

frontend/src/components/GateDesignerNodePanel.jsx

@@ -1,3 +1,4 @@
+import { useState } from 'react'
 import { Link } from 'react-router-dom'
 import { gatePath } from '../utils/routes.js'
 import {
@@ -6,6 +7,8 @@ import {
   isJoinGateItem,
 } from '../constants/status.js'
 import { StatusBadge } from './StatusBadge.jsx'
+import { Modal } from './Modal.jsx'
+import { RoadmapItemForm } from './RoadmapItemForm.jsx'
 
 function formatDate(value) {
   if (!value) return null
@@ -18,90 +21,176 @@ function formatDate(value) {
   }
 }
 
+function graphNodeHint(item, graphItem, enforceBlocking) {
+  if (item.status === 'reached') {
+    return { label: 'Abgeschlossen', className: 'status-pill status-pill--done' }
+  }
+  if (enforceBlocking && graphItem?.blocked) {
+    return { label: 'Blockiert', className: 'status-pill status-pill--blocked' }
+  }
+  if (graphItem?.ready || item.status === 'active') {
+    return { label: 'Aktiv / bereit', className: 'status-pill status-pill--ready' }
+  }
+  return null
+}
+
 export function GateDesignerNodePanel({
   item,
   graphState,
   criteriaProgress,
+  canManage = false,
+  busy = false,
   onClose,
+  onUpdate,
+  onDelete,
 }) {
+  const [showEdit, setShowEdit] = useState(false)
+
   if (!item) return null
 
   const joinGate = isJoinGateItem(item)
   const graphItem = graphState?.items?.[item.id]
+  const enforceBlocking = graphState?.graph_profile?.enforce_gate_blocking !== false
+  const statusHint = graphNodeHint(item, graphItem, enforceBlocking)
+  const terminalStatus = ['reached', 'moved', 'discarded'].includes(item.status)
+  const canDelete = canManage && !terminalStatus && typeof onDelete === 'function'
+  const canEdit = canManage && !terminalStatus && typeof onUpdate === 'function'
 
   const progress = criteriaProgress?.[item.id]
   const closed = progress?.closed ?? 0
   const total = progress?.total ?? 0
 
-  return (
+  async function handleEditSubmit(payload) {
-    <aside className="gate-designer-node-panel" aria-label="Gate-Informationen">
+    await onUpdate(item.id, payload)
-      <div className="gate-designer-node-panel__header">
+    setShowEdit(false)
-        <h3 className="gate-designer-node-panel__title">{item.title || 'Gate'}</h3>
+  }
-        <button
-          type="button"
-          className="btn btn-secondary btn-sm"
-          aria-label="Panel schließen"
-          onClick={onClose}
-        >
-          ×
-        </button>
-      </div>
 
-      <dl className="gate-designer-node-panel__meta">
+  async function handleDeleteClick() {
-        <div>
+    const label = item.title || 'dieses Gate'
-          <dt>Typ</dt>
+    const ok = window.confirm(
-          <dd>{ROADMAP_ITEM_TYPE_LABELS[item.item_type] || item.item_type || 'Gate'}</dd>
+      `„${label}" wirklich löschen? Verknüpfte Kanten werden mit entfernt.`,
+    )
+    if (!ok) return
+    await onDelete(item.id)
+    onClose?.()
+  }
+
+  return (
+    <>
+      <aside className="gate-designer-node-panel" aria-label="Gate-Informationen">
+        <div className="gate-designer-node-panel__header">
+          <h3 className="gate-designer-node-panel__title">{item.title || 'Gate'}</h3>
+          <button
+            type="button"
+            className="btn btn-secondary btn-sm"
+            aria-label="Panel schließen"
+            onClick={onClose}
+          >
+            ×
+          </button>
         </div>
-        <div>
+
-          <dt>Status</dt>
+        {statusHint && (
-          <dd>
+          <p className="gate-designer-node-panel__status-hint">
-            <StatusBadge status={item.status || 'planned'} />
+            <span className={statusHint.className}>{statusHint.label}</span>
-          </dd>
+          </p>
-        </div>
-        {item.target_date && (
-          <div>
-            <dt>Zieltermin</dt>
-            <dd>{formatDate(item.target_date)}</dd>
-          </div>
         )}
-        {total > 0 && (
+
+        <dl className="gate-designer-node-panel__meta">
           <div>
-            <dt>Kriterien</dt>
+            <dt>Typ</dt>
+            <dd>{ROADMAP_ITEM_TYPE_LABELS[item.item_type] || item.item_type || 'Gate'}</dd>
+          </div>
+          <div>
+            <dt>Status</dt>
             <dd>
-              {closed}/{total} erfüllt
+              <StatusBadge status={item.status || 'planned'} />
             </dd>
           </div>
+          {item.target_date && (
+            <div>
+              <dt>Zieltermin</dt>
+              <dd>{formatDate(item.target_date)}</dd>
+            </div>
+          )}
+          {total > 0 && (
+            <div>
+              <dt>Kriterien</dt>
+              <dd>
+                {closed}/{total} erfüllt
+              </dd>
+            </div>
+          )}
+        </dl>
+
+        {joinGate && (
+          <p className="gate-designer-node-panel__topology muted">
+            Schaltknoten — schaltet, wenn alle Eingänge (requires) erreicht sind. Keine Checkliste,
+            kein manuelles Verify.
+          </p>
         )}
-      </dl>
 
-      {joinGate && (
+        {item.goal_description && (
-        <p className="gate-designer-node-panel__topology muted">
+          <p className="gate-designer-node-panel__goal muted">{item.goal_description}</p>
-          Schaltknoten — schaltet, wenn alle Eingänge (requires) erreicht sind. Keine Checkliste,
+        )}
-          kein manuelles Verify.
-        </p>
-      )}
 
-      {item.goal_description && (
+        {graphItem?.parallel_group_keys?.length > 0 && (
-        <p className="gate-designer-node-panel__goal muted">{item.goal_description}</p>
+          <p className="gate-designer-node-panel__topology muted">
-      )}
+            Parallel: {graphItem.parallel_group_keys.join(', ')}
+          </p>
+        )}
 
-      {graphItem?.parallel_group_keys?.length > 0 && (
+        {graphItem?.optional_prerequisites?.length > 0 && (
-        <p className="gate-designer-node-panel__topology muted">
+          <p className="gate-designer-node-panel__topology muted">
-          Parallel: {graphItem.parallel_group_keys.join(', ')}
+            Optional: {graphItem.optional_prerequisites.length} Zweig(e) — blockieren nicht
-        </p>
+          </p>
-      )}
+        )}
 
-      {graphItem?.optional_prerequisites?.length > 0 && (
+        {terminalStatus && (
-        <p className="gate-designer-node-panel__topology muted">
+          <p className="gate-designer-node-panel__topology muted">
-          Optional: {graphItem.optional_prerequisites.length} Zweig(e) — blockieren nicht
+            {item.status === 'reached'
-        </p>
+              ? 'Abgeschlossene Gates sind geschützt und können nicht gelöscht oder in den Typ geändert werden.'
-      )}
+              : `Terminaler Status (${MILESTONE_STATUS_LABELS[item.status] || item.status}) — Löschen gesperrt.`}
+          </p>
+        )}
 
-      <div className="gate-designer-node-panel__actions">
+        <div className="gate-designer-node-panel__actions">
-        <Link to={gatePath(item.id)} className="btn btn-secondary btn-sm">
+          {canEdit && (
-          Vollständig bearbeiten
+            <button
-        </Link>
+              type="button"
-      </div>
+              className="btn btn-secondary btn-sm"
-    </aside>
+              disabled={busy}
+              onClick={() => setShowEdit(true)}
+            >
+              Typ & Metadaten
+            </button>
+          )}
+          {canDelete && (
+            <button
+              type="button"
+              className="btn btn-secondary btn-sm gate-designer-node-panel__delete"
+              disabled={busy}
+              onClick={handleDeleteClick}
+            >
+              Löschen
+            </button>
+          )}
+          <Link to={gatePath(item.id)} className="btn btn-secondary btn-sm">
+            Vollständig bearbeiten
+          </Link>
+        </div>
+      </aside>
+
+      <Modal open={showEdit} title="Gate bearbeiten" onClose={() => setShowEdit(false)}>
+        <RoadmapItemForm
+          mode="edit"
+          initial={item}
+          busy={busy}
+          submitLabel="Speichern"
+          onCancel={() => setShowEdit(false)}
+          onSubmit={handleEditSubmit}
+        />
+      </Modal>
+    </>
   )
 }

frontend/src/components/GateGraphDesigner.jsx

@@ -15,7 +15,14 @@ import {
   loadManualGatePositions,
   storeManualGatePositions,
 } from '../plan/gateGraphDesigner.js'
-import { DESIGNER_EDGE_KINDS, DESIGNER_EDGE_LABELS, edgeKindNeedsGroupKey, resolveDependencyEndpoints } from '../plan/gateGraphTopology.js'
+import {
+  DESIGNER_EDGE_KINDS,
+  DESIGNER_EDGE_DESCRIPTIONS,
+  DESIGNER_EDGE_LABELS,
+  dependencyVisualEndpoints,
+  edgeKindNeedsGroupKey,
+  resolveDependencyEndpoints,
+} from '../plan/gateGraphTopology.js'
 import { LoadingState } from './LoadingState.jsx'
 import { ErrorState } from './ErrorState.jsx'
 import { EmptyState } from './EmptyState.jsx'
@@ -61,6 +68,8 @@ export function GateGraphDesigner({
   canManage = false,
   busy: busyProp = false,
   onCreate,
+  onUpdate,
+  onDelete,
   onGraphChanged,
   graphState,
 }) {
@@ -147,6 +156,21 @@ export function GateGraphDesigner({
     [items, selectedNodeId],
   )
 
+  const selectedDependency = useMemo(
+    () => dependencies.find((dep) => dep.id === selectedEdgeId) || null,
+    [dependencies, selectedEdgeId],
+  )
+
+  const itemTitleById = useMemo(() => {
+    const map = new Map()
+    for (const item of items) {
+      map.set(item.id, item.title || 'Gate')
+    }
+    return map
+  }, [items])
+
+  const enforceBlocking = graphState?.graph_profile?.enforce_gate_blocking !== false
+
   async function notifyGraphChanged() {
     await reloadDependencies()
     onGraphChanged?.()
@@ -200,6 +224,74 @@ export function GateGraphDesigner({
     }
   }
 
+  async function handleChangeEdgeType(newType) {
+    if (!selectedDependency || !canManage) return
+    if (newType === selectedDependency.dependency_type) return
+    const effectiveGroupKey = (selectedDependency.group_key || groupKey || 'phase-1').trim()
+    if (edgeKindNeedsGroupKey(newType) && !effectiveGroupKey) {
+      setError('Parallelgruppe benötigt einen Schlüssel (group_key).')
+      return
+    }
+    setBusyLocal(true)
+    setError(null)
+    try {
+      const { sourceId, targetId } = dependencyVisualEndpoints(selectedDependency)
+      await deleteRoadmapDependency(selectedDependency.id)
+      const { from_item_id: fromItemId, to_item_id: toItemId } = resolveDependencyEndpoints(
+        newType,
+        sourceId,
+        targetId,
+      )
+      const body = {
+        to_item_id: toItemId,
+        dependency_type: newType,
+      }
+      if (edgeKindNeedsGroupKey(newType)) {
+        body.group_key = effectiveGroupKey
+      }
+      await addRoadmapItemDependency(fromItemId, body)
+      setEdgeType(newType)
+      if (edgeKindNeedsGroupKey(newType)) {
+        setGroupKey(effectiveGroupKey)
+      }
+      await notifyGraphChanged()
+    } catch (err) {
+      setError(err?.message || 'Kantentyp konnte nicht geändert werden.')
+    } finally {
+      setBusyLocal(false)
+    }
+  }
+
+  async function handleDeleteGate(itemId) {
+    if (!onDelete || !canManage) return
+    setBusyLocal(true)
+    setError(null)
+    try {
+      await onDelete(itemId)
+      setSelectedNodeId(null)
+      onGraphChanged?.()
+    } catch (err) {
+      setError(err?.message || 'Gate konnte nicht gelöscht werden.')
+    } finally {
+      setBusyLocal(false)
+    }
+  }
+
+  async function handleUpdateGate(itemId, payload) {
+    if (!onUpdate || !canManage) return
+    setBusyLocal(true)
+    setError(null)
+    try {
+      await onUpdate(itemId, payload)
+      onGraphChanged?.()
+    } catch (err) {
+      setError(err?.message || 'Gate konnte nicht gespeichert werden.')
+      throw err
+    } finally {
+      setBusyLocal(false)
+    }
+  }
+
   function openCreateAt(point) {
     setCreatePosition({
       x: Math.max(0, point.x - GATE_NODE_WIDTH / 2),
@@ -514,11 +606,46 @@ export function GateGraphDesigner({
         )}
       </div>
 
+      <div className="gate-graph-designer__legends">
+        <div className="gate-map-view__legend muted gate-graph-designer__legend">
+          <span className="gate-map-view__legend-item">
+            <span className="gate-map-view__legend-line gate-map-view__legend-line--requires" />
+            Voraussetzung
+          </span>
+          <span className="gate-map-view__legend-item">
+            <span className="gate-map-view__legend-line gate-map-view__legend-line--blocks" />
+            Blockiert
+          </span>
+          <span className="gate-map-view__legend-item">
+            <span className="gate-map-view__legend-line gate-map-view__legend-line--related" />
+            Bezug
+          </span>
+          <span className="gate-map-view__legend-item">
+            <span className="gate-map-view__legend-line gate-map-view__legend-line--parallel" />
+            Parallel
+          </span>
+          <span className="gate-map-view__legend-item">
+            <span className="gate-map-view__legend-line gate-map-view__legend-line--optional" />
+            Optional
+          </span>
+        </div>
+        <div className="gate-graph-designer__node-legend muted">
+          <span className="gate-graph-designer__node-legend-item gate-graph-designer__node-legend-item--reached">
+            Abgeschlossen
+          </span>
+          <span className="gate-graph-designer__node-legend-item gate-graph-designer__node-legend-item--ready">
+            Aktiv / bereit
+          </span>
+          <span className="gate-graph-designer__node-legend-item gate-graph-designer__node-legend-item--blocked">
+            Blockiert
+          </span>
+        </div>
+      </div>
+
       {canManage && (
         <p className="gate-graph-designer__hint muted">
-          Vom unteren Punkt ziehen: Voraussetzung/Block/Bezug/Parallel/Optional. Join-Gates
+          Vom unteren Punkt ziehen: Kante anlegen. Klick auf Kante oder Gate öffnet Bearbeitung
-          verbinden mehrere Pflicht-Voraussetzungen (AND). Doppelklick auf leere Fläche legt ein
+          rechts. Join-Gates sammeln Eingänge (AND). Doppelklick auf leere Fläche legt ein Gate an.
-          Gate an.
         </p>
       )}
 
@@ -586,10 +713,8 @@ export function GateGraphDesigner({
                 }
                 onClick={(event) => {
                   event.stopPropagation()
-                  if (canManage) {
+                  setSelectedEdgeId(edge.id)
-                    setSelectedEdgeId(edge.id)
+                  setSelectedNodeId(null)
-                    setSelectedNodeId(null)
-                  }
                 }}
               />
             ))}
@@ -607,12 +732,24 @@ export function GateGraphDesigner({
             {layout.nodes.map((node) => {
               const item = node.item
               const isSelected = selectedNodeId === node.id
+              const nodeGraph = graphState?.items?.[node.id]
               const nodeClass =
                 'gate-map-view__node gate-map-view__node--' +
                 (item.status || 'planned') +
                 (item.item_type === 'join_gate' ? ' gate-map-view__node--join_gate' : '') +
+                (enforceBlocking && nodeGraph?.blocked ? ' gate-map-view__node--blocked' : '') +
+                (nodeGraph?.ready ? ' gate-map-view__node--ready' : '') +
+                (item.status === 'reached' ? ' gate-map-view__node--reached' : '') +
                 (isSelected ? ' gate-graph-designer__node--selected' : '') +
                 (draggingNodeId === node.id ? ' gate-graph-designer__node--dragging' : '')
+              const statusLabel =
+                item.status === 'reached'
+                  ? '✓'
+                  : enforceBlocking && nodeGraph?.blocked
+                    ? '⏸'
+                    : nodeGraph?.ready || item.status === 'active'
+                      ? '●'
+                      : null
               return (
                 <g
                   key={node.id}
@@ -628,12 +765,27 @@ export function GateGraphDesigner({
                     rx="8"
                     ry="8"
                   />
+                  {statusLabel && (
+                    <text
+                      className="gate-graph-designer__node-status-mark"
+                      x={node.width - 14}
+                      y="18"
+                      aria-hidden="true"
+                    >
+                      {statusLabel}
+                    </text>
+                  )}
                   <text className="gate-map-view__node-title" x="12" y="28">
                     {truncateTitle(item.title)}
                   </text>
                   <text className="gate-map-view__node-meta" x="12" y="50">
                     {ROADMAP_ITEM_TYPE_LABELS[item.item_type] || item.item_type || 'Gate'}
                   </text>
+                  {item.status === 'reached' && (
+                    <text className="gate-map-view__node-meta gate-graph-designer__node-reached-label" x="12" y="68">
+                      Erreicht
+                    </text>
+                  )}
                   {canManage && (
                     <circle
                       className="gate-graph-designer__port"
@@ -649,13 +801,90 @@ export function GateGraphDesigner({
           </svg>
         </div>
 
-        {selectedItem && (
+        {(selectedItem || selectedDependency) && (
-          <GateDesignerNodePanel
+          <div className="gate-graph-designer__side-panel">
-            item={selectedItem}
+            {selectedDependency && (
-            graphState={graphState}
+              <aside className="gate-designer-edge-panel" aria-label="Kanten-Bearbeitung">
-            criteriaProgress={criteriaProgress}
+                <div className="gate-designer-node-panel__header">
-            onClose={() => setSelectedNodeId(null)}
+                  <h3 className="gate-designer-node-panel__title">Kante</h3>
-          />
+                  <button
+                    type="button"
+                    className="btn btn-secondary btn-sm"
+                    aria-label="Panel schließen"
+                    onClick={() => setSelectedEdgeId(null)}
+                  >
+                    ×
+                  </button>
+                </div>
+                <p className="muted gate-designer-edge-panel__route">
+                  {(() => {
+                    const { sourceId, targetId } = dependencyVisualEndpoints(selectedDependency)
+                    return `${itemTitleById.get(sourceId) || sourceId} → ${itemTitleById.get(targetId) || targetId}`
+                  })()}
+                </p>
+                {canManage ? (
+                  <>
+                    <label className="gate-graph-designer__edge-type">
+                      <span className="muted">Kantentyp</span>
+                      <select
+                        value={selectedDependency.dependency_type}
+                        disabled={busy}
+                        onChange={(e) => handleChangeEdgeType(e.target.value)}
+                      >
+                        {DESIGNER_EDGE_KINDS.map((value) => (
+                          <option key={value} value={value}>
+                            {DESIGNER_EDGE_LABELS[value]}
+                          </option>
+                        ))}
+                      </select>
+                    </label>
+                    {edgeKindNeedsGroupKey(selectedDependency.dependency_type) && (
+                      <label className="gate-graph-designer__edge-type">
+                        <span className="muted">Gruppenschlüssel</span>
+                        <input
+                          type="text"
+                          value={selectedDependency.group_key || groupKey}
+                          maxLength={128}
+                          disabled={busy}
+                          placeholder="z. B. phase-1"
+                          onChange={(e) => setGroupKey(e.target.value)}
+                        />
+                      </label>
+                    )}
+                    <p className="gate-designer-edge-panel__help muted">
+                      {DESIGNER_EDGE_DESCRIPTIONS[selectedDependency.dependency_type]}
+                    </p>
+                    <button
+                      type="button"
+                      className="btn btn-secondary btn-sm gate-designer-node-panel__delete"
+                      disabled={busy}
+                      onClick={() => handleDeleteEdge(selectedDependency.id)}
+                    >
+                      Kante entfernen
+                    </button>
+                  </>
+                ) : (
+                  <p className="muted">
+                    {DESIGNER_EDGE_LABELS[selectedDependency.dependency_type]} —{' '}
+                    {DESIGNER_EDGE_DESCRIPTIONS[selectedDependency.dependency_type]}
+                  </p>
+                )}
+              </aside>
+            )}
+
+            {selectedItem && !selectedDependency && (
+              <GateDesignerNodePanel
+                item={selectedItem}
+                graphState={graphState}
+                criteriaProgress={criteriaProgress}
+                canManage={canManage}
+                busy={busy}
+                onClose={() => setSelectedNodeId(null)}
+                onUpdate={handleUpdateGate}
+                onDelete={handleDeleteGate}
+              />
+            )}
+          </div>
         )}
       </div>
 

frontend/src/components/GatesPlanPanel.jsx

@@ -10,6 +10,7 @@ export function GatesPlanPanel({
   items,
   canManage,
   onCreate,
+  onUpdate,
   onReorder,
   onDelete,
   busy,
@@ -129,6 +130,8 @@ export function GatesPlanPanel({
           canManage={canManage}
           busy={busy}
           onCreate={canManage ? onCreate : undefined}
+          onUpdate={canManage ? onUpdate : undefined}
+          onDelete={canManage ? onDelete : undefined}
           onGraphChanged={refreshGraphState}
           graphState={graphState}
         />

frontend/src/components/RoadmapItemForm.jsx

@@ -44,16 +44,18 @@ export function RoadmapItemForm({
   }
 
   const statusLocked = ['reached', 'moved', 'discarded'].includes(initial.status)
+  const showTypeField = mode === 'create' || (mode === 'edit' && !statusLocked)
 
   return (
     <form className="form workspace-form roadmap-item-form" onSubmit={handleSubmit}>
-      {mode === 'create' && (
+      {showTypeField && (
         <label>
           Typ
           <select
             name="item_type"
             value={itemType}
             onChange={(e) => setItemType(e.target.value)}
+            disabled={statusLocked}
           >
             {ROADMAP_ITEM_TYPES_FOR_DESIGNER.map((t) => (
               <option key={t} value={t}>
@@ -67,6 +69,11 @@ export function RoadmapItemForm({
               manuelles Verify.
             </span>
           )}
+          {mode === 'edit' && !isJoinGate && initial.item_type === 'join_gate' && (
+            <span className="muted form-hint">
+              Beim Wechsel von Join zu Gate: Checkliste auf der Detailseite ergänzen.
+            </span>
+          )}
         </label>
       )}
       <label>

frontend/src/pages/initiative/InitiativePlanPage.jsx

@@ -10,6 +10,7 @@ export function InitiativePlanPage() {
     capabilities,
     formBusy,
     handleCreateRoadmapItem,
+    handleUpdateRoadmapItem,
     handleReorderRoadmapItems,
     handleDeleteRoadmapItem,
     handleConvertBacklog,
@@ -45,6 +46,7 @@ export function InitiativePlanPage() {
         items={roadmapItems}
         canManage={capabilities.has('kairo.milestone.manage')}
         onCreate={handleCreateRoadmapItem}
+        onUpdate={handleUpdateRoadmapItem}
         onReorder={handleReorderRoadmapItems}
         onDelete={handleDeleteRoadmapItem}
         busy={formBusy}

frontend/src/pages/initiative/RoadmapItemDetailPage.jsx

@@ -1,5 +1,5 @@
 import { useCallback, useEffect, useState } from 'react'
-import { Link, useParams } from 'react-router-dom'
+import { Link, useNavigate, useParams } from 'react-router-dom'
 import { createInitiativeEvidence } from '../../api/evidence.js'
 import {
   getRoadmapItem,
@@ -10,6 +10,7 @@ import {
   listRoadmapItemDependencies,
   addRoadmapItemDependency,
   deleteRoadmapDependency,
+  deleteRoadmapItem,
   listInitiativeRoadmapItems,
 } from '../../api/roadmap.js'
 import { ErrorState } from '../../components/ErrorState.jsx'
@@ -32,6 +33,7 @@ import { RoadmapItemForm } from '../../components/RoadmapItemForm.jsx'
 
 export function RoadmapItemDetailPage({ overrideItemId }) {
   const { id: routeInitiativeId, itemId: routeItemId, gateId } = useParams()
+  const navigate = useNavigate()
   const ops = useInitiativeOperations()
   const initiativeId = routeInitiativeId || ops?.initiativeId
   const itemId = overrideItemId || routeItemId || gateId
@@ -180,6 +182,25 @@ export function RoadmapItemDetailPage({ overrideItemId }) {
               Stammdaten
             </button>
           )}
+          {canManage && !['reached', 'moved', 'discarded'].includes(item.status) && (
+            <button
+              type="button"
+              className="btn btn-secondary btn-sm gate-designer-node-panel__delete"
+              disabled={busy}
+              onClick={async () => {
+                const ok = window.confirm(
+                  `„${item.title}" wirklich löschen? Verknüpfte Kanten werden mit entfernt.`,
+                )
+                if (!ok) return
+                await runAction(async () => {
+                  await deleteRoadmapItem(itemId)
+                  navigate(scopedPath('/plan/gates', { initiativeId }))
+                })
+              }}
+            >
+              Löschen
+            </button>
+          )}
         </div>
       </div>
 

frontend/src/plan/gateGraphTopology.js

@@ -23,6 +23,19 @@ export const DESIGNER_EDGE_LABELS = {
   optional_branch: 'Optional',
 }
 
+/** Kurz-Erklärung der Kantentypen (Semantik from → to in der DB). */
+export const DESIGNER_EDGE_DESCRIPTIONS = {
+  requires:
+    'Ziel-Gate benötigt Quell-Gate als erreicht (Voraussetzung). Join: alle Eingänge müssen erreicht sein.',
+  blocks:
+    'Quell-Gate blockiert Ziel-Gate, solange es noch aktiv ist (planned/active/at_risk).',
+  related: 'Informativer Bezug — keine Blockade im Graph.',
+  parallel_group:
+    'Markiert parallele Gates in einer Gruppe (group_key) — blockiert nicht, dient der Struktur.',
+  optional_branch:
+    'Wie Voraussetzung, aber optional — blockiert das Ziel-Gate nicht, wenn offen.',
+}
+
 /** @deprecated use DESIGNER_EDGE_KINDS */
 export const DEFERRED_TOPOLOGY_EDGE_KINDS = ['parallel_group', 'optional_branch']
 
@@ -40,3 +53,13 @@ export function resolveDependencyEndpoints(edgeKind, sourceId, targetId) {
   }
   return { from_item_id: sourceId, to_item_id: targetId }
 }
+
+/**
+ * Visuelle Drag-Richtung (Quelle → Ziel) aus gespeicherter Abhängigkeit.
+ */
+export function dependencyVisualEndpoints(dep) {
+  if (dep.dependency_type === 'requires') {
+    return { sourceId: dep.to_item_id, targetId: dep.from_item_id }
+  }
+  return { sourceId: dep.from_item_id, targetId: dep.to_item_id }
+}

frontend/src/plan/gateGraphTopology.test.js

@@ -2,6 +2,7 @@ import { describe, expect, it } from 'vitest'
 import {
   DEFERRED_TOPOLOGY_EDGE_KINDS,
   DESIGNER_EDGE_KINDS,
+  dependencyVisualEndpoints,
   edgeKindNeedsGroupKey,
   resolveDependencyEndpoints,
 } from './gateGraphTopology.js'
@@ -31,4 +32,21 @@ describe('gateGraphTopology', () => {
       to_item_id: 'b',
     })
   })
+
+  it('resolves visual endpoints from stored dependency', () => {
+    expect(
+      dependencyVisualEndpoints({
+        from_item_id: 'b',
+        to_item_id: 'a',
+        dependency_type: 'requires',
+      }),
+    ).toEqual({ sourceId: 'a', targetId: 'b' })
+    expect(
+      dependencyVisualEndpoints({
+        from_item_id: 'a',
+        to_item_id: 'b',
+        dependency_type: 'blocks',
+      }),
+    ).toEqual({ sourceId: 'a', targetId: 'b' })
+  })
 })

frontend/src/styles/components.css

@@ -2157,14 +2157,38 @@
 }
 
 .gate-graph-designer__main {
+  position: relative;
   display: flex;
-  gap: 0.75rem;
+  gap: 0;
   align-items: stretch;
+  min-height: 420px;
 }
 
 .gate-graph-designer__main .gate-graph-designer__viewport {
   flex: 1;
   min-width: 0;
+  width: 100%;
+}
+
+.gate-graph-designer__side-panel {
+  position: absolute;
+  top: 0.5rem;
+  right: 0.5rem;
+  bottom: 0.5rem;
+  z-index: 2;
+  display: flex;
+  flex-direction: column;
+  width: min(360px, calc(100% - 1rem));
+  max-width: 100%;
+  pointer-events: none;
+}
+
+.gate-graph-designer__side-panel > * {
+  pointer-events: auto;
+  flex: 1;
+  min-height: 0;
+  overflow-y: auto;
+  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.12);
 }
 
 .gate-graph-designer__empty-actions {
@@ -2193,17 +2217,117 @@
 }
 
 .gate-designer-node-panel {
-  flex: 0 0 240px;
+  flex: 0 0 auto;
-  max-width: 280px;
+  width: 100%;
+  max-width: none;
   padding: 0.75rem 1rem;
   border: 1px solid var(--jk-border, #dde3ea);
   border-radius: 8px;
   background: var(--jk-surface, #fff);
-  align-self: flex-start;
+  align-self: stretch;
-  max-height: 70vh;
+  max-height: none;
   overflow-y: auto;
 }
 
+.gate-designer-edge-panel {
+  padding: 0.75rem 1rem;
+  border: 1px solid var(--jk-border, #dde3ea);
+  border-radius: 8px;
+  background: var(--jk-surface, #fff);
+}
+
+.gate-designer-edge-panel__route {
+  margin: 0 0 0.75rem;
+  font-size: 0.875rem;
+  word-break: break-word;
+}
+
+.gate-designer-edge-panel__help {
+  margin: 0.5rem 0 0.75rem;
+  font-size: 0.8125rem;
+  line-height: 1.45;
+}
+
+.gate-designer-node-panel__status-hint {
+  margin: 0 0 0.75rem;
+}
+
+.gate-designer-node-panel__delete {
+  color: #b91c1c;
+  border-color: #fecaca;
+}
+
+.gate-designer-node-panel__actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.5rem;
+}
+
+.gate-graph-designer__legends {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.75rem 1.5rem;
+  align-items: center;
+  margin-bottom: 0.5rem;
+}
+
+.gate-graph-designer__legend {
+  margin: 0;
+}
+
+.gate-graph-designer__node-legend {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.5rem 0.75rem;
+  font-size: 0.8125rem;
+}
+
+.gate-graph-designer__node-legend-item {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.35rem;
+}
+
+.gate-graph-designer__node-legend-item::before {
+  content: '';
+  width: 0.75rem;
+  height: 0.75rem;
+  border-radius: 3px;
+  border: 1.5px solid var(--jk-border-strong, #c5ced8);
+}
+
+.gate-graph-designer__node-legend-item--reached::before {
+  background: #f0fdf4;
+  border-color: #16a34a;
+}
+
+.gate-graph-designer__node-legend-item--ready::before {
+  background: #ecfdf5;
+  border-color: #059669;
+}
+
+.gate-graph-designer__node-legend-item--blocked::before {
+  background: #fef2f2;
+  border-color: #dc2626;
+}
+
+.gate-graph-designer__node-status-mark {
+  font-size: 11px;
+  font-weight: 700;
+  fill: var(--jk-text-secondary, #445);
+  pointer-events: none;
+}
+
+.gate-map-view__node--reached .gate-graph-designer__node-reached-label {
+  fill: #15803d;
+  font-weight: 600;
+}
+
+.status-pill--done {
+  background: #f0fdf4;
+  color: #15803d;
+}
+
 .gate-designer-node-panel__header {
   display: flex;
   align-items: flex-start;
@@ -2250,12 +2374,6 @@
   font-size: 0.8125rem;
 }
 
-.gate-designer-node-panel__actions {
-  display: flex;
-  flex-wrap: wrap;
-  gap: 0.5rem;
-}
-
 .gate-graph-designer__toolbar {
   display: flex;
   flex-wrap: wrap;