feat: Anfragencenter Parts A–E — read/unread, prep wizard, offer flow, report preview

- Part A: Replace InquiryStatus badges with WhatsApp-style unread indicators
  (isRead, unreadCount, lastReadAt on Inquiry; markThreadAsRead in service + hook)
- Part B: RelatedPropertyCardPanel — reposition "Objekt ansehen", add "Weitere
  Matches" section via matchService.getAdditionalMatchesForInquiry
- Part C: PreparationWizard 4-step dialog — property selection, report generation
  progress, field editing + ReportObjectFieldSelector, PDF preview + finalize
- Part D: OfferCreationWizard 4-step dialog triggered from first tenant message —
  data capture, field editing, viewing appointments, PDF generation + attach to reply
- Part E: LatentInquiryReportPreview (2-page A4 doc), ReportObjectFieldSelector
  (5 accordion groups, 35+ optional fields), mapImageUrl on Property domain

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

src/domain/additionalMatch.ts

@@ -0,0 +1,9 @@
+export interface AdditionalPropertyMatch {
+  propertyId: string
+  title: string
+  location: string
+  areaSqm: number
+  rentPricePerSqm: number
+  matchScore: number
+  imageUrl?: string
+}

src/domain/inquiry.ts

@@ -30,7 +30,10 @@ export interface Inquiry {
   tenantEmail?: string
   subject: string
   message: string
-  status: InquiryStatus
+  status?: InquiryStatus
+  unreadCount: number
+  isRead: boolean
+  lastReadAt?: string
   matchScore?: number
   createdAt: string
   updatedAt: string

src/domain/inquiryReport.ts

@@ -0,0 +1,37 @@
+export type ReportObjectFieldKey =
+  | 'title' | 'location' | 'areaSqm' | 'rentPricePerSqm' | 'availabilityDate'
+  | 'leaseTerm' | 'breakoutOption' | 'currentTenant' | 'propertyNumber'
+  | 'assetType' | 'floor' | 'parking' | 'publicTransportScore'
+  | 'ceilingHeightM' | 'loadingDocksCount' | 'powerSupplyKva'
+  | 'hasServerRoom' | 'isBarrierFree' | 'fitOut'
+  | 'prestigeScore' | 'visibilityScore' | 'footfallScore' | 'commuterAccessScore'
+  | 'talentAccessScore' | 'esgScore' | 'flexibilityScore'
+  | 'expansionPotentialScore' | 'taxEnvironmentScore'
+  | 'description' | 'images' | 'mapImageUrl' | 'units'
+  | 'softFactors' | 'dataQuality'
+
+export interface ReportObjectFieldSelection {
+  propertyId: string
+  mandatoryFields: ReportObjectFieldKey[]
+  selectedOptionalFields: ReportObjectFieldKey[]
+}
+
+export interface ReportEditableField {
+  id: string
+  label: string
+  value: string
+  fieldType: 'text' | 'textarea'
+}
+
+export interface InquiryPreparationReportDraft {
+  id: string
+  inquiryId: string
+  selectedPropertyIds: string[]
+  fieldSelections: ReportObjectFieldSelection[]
+  marketSignalPropertyId?: string
+  editableFields: ReportEditableField[]
+  status: 'draft' | 'finalized'
+  pdfUrl?: string
+  createdAt: string
+  updatedAt: string
+}

src/domain/offerReport.ts

@@ -0,0 +1,25 @@
+export interface ViewingAppointmentOption {
+  id: string
+  date: string
+  timeSlot: string
+  contactPerson?: string
+}
+
+export interface OfferEditableField {
+  id: string
+  label: string
+  value: string
+  fieldType: 'text' | 'textarea'
+}
+
+export interface OfferReportDraft {
+  id: string
+  inquiryId: string
+  propertyId: string
+  editableFields: OfferEditableField[]
+  viewingAppointments: ViewingAppointmentOption[]
+  status: 'draft' | 'finalized'
+  pdfUrl?: string
+  createdAt: string
+  updatedAt: string
+}

src/domain/property.ts

@@ -145,6 +145,7 @@ export interface Property {
 
   propertyNumber?: string
   units?: PropertyUnit[]
+  mapImageUrl?: string
 
   leaseTerm?: string
   leaseStartDate?: string