feat(iace-ui): component presence/CE review + machine-type dropdown

- Components view: three presence sections (Vorhanden / Nicht vorhanden /
  Geloescht) with bidirectional move + soft-delete (audit-visible, restorable),
  so the expert corrects the engine's best-effort negation in both directions.
- CE marking per component (bought robot/actuator/SPS) with a clear
  "validate the integrated safety function (PL/SIL)" note when also safety-relevant.
  Safe semantics: hazards are not suppressed, only provenance is surfaced.
- Project-create form: machine type is now a grouped dropdown from the engine's
  controlled vocabulary (GET /machine-types) instead of free text.
- Knowledge graph: component→hazard edges use the real component_id.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

admin-compliance/app/sdk/iace/[projectId]/components/_hooks/useComponents.ts

@@ -1,7 +1,7 @@
 'use client'
 
 import { useState, useEffect } from 'react'
-import { Component, ComponentFormData, LibraryComponent, EnergySource, buildTree } from '../_components/types'
+import { Component, ComponentFormData, LibraryComponent, EnergySource, PresenceStatus, buildTree } from '../_components/types'
 
 export function useComponents(projectId: string) {
   const [components, setComponents] = useState<Component[]>([])
@@ -47,16 +47,43 @@ export function useComponents(projectId: string) {
     return false
   }
 
-  async function handleDelete(id: string) {
-    if (!confirm('Komponente wirklich loeschen? Unterkomponenten werden ebenfalls entfernt.')) return
+  // Move a component between presence states (vorhanden / nicht_vorhanden /
+  // geloescht). Used for the expert's bidirectional review of auto-detected
+  // components.
+  async function setPresence(id: string, status: PresenceStatus) {
     try {
-      const res = await fetch(`/api/sdk/v1/iace/projects/${projectId}/components/${id}`, { method: 'DELETE' })
+      const res = await fetch(`/api/sdk/v1/iace/projects/${projectId}/components/${id}`, {
+        method: 'PUT',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ presence_status: status }),
+      })
       if (res.ok) await fetchComponents()
     } catch (err) {
-      console.error('Failed to delete component:', err)
+      console.error('Failed to set presence:', err)
     }
   }
 
+  // Mark a component as a bought CE product (robot, actuator, SPS ...). Safe
+  // semantics: no hazard suppression — only provenance + PL/SIL note.
+  async function setCEMarked(id: string, value: boolean) {
+    try {
+      const res = await fetch(`/api/sdk/v1/iace/projects/${projectId}/components/${id}`, {
+        method: 'PUT',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ ce_marked: value }),
+      })
+      if (res.ok) await fetchComponents()
+    } catch (err) {
+      console.error('Failed to set ce_marked:', err)
+    }
+  }
+
+  // Soft-delete: the component moves to the "Geloescht" list (restorable); it is
+  // not removed from the project, so nothing silently disappears.
+  async function handleDelete(id: string) {
+    await setPresence(id, 'geloescht')
+  }
+
   async function handleAddFromLibrary(libraryComps: LibraryComponent[], energySrcs: EnergySource[]) {
     const energySourceIds = energySrcs.map(e => e.id)
     for (const comp of libraryComps) {
@@ -88,5 +115,7 @@ export function useComponents(projectId: string) {
     handleSubmit,
     handleDelete,
     handleAddFromLibrary,
+    setPresence,
+    setCEMarked,
   }
 }