enhanced generation engine with chapters as structure, renderers to render a pipeline and deliver 1..n documents

modules/datamodels/datamodelDocument.py

@@ -107,5 +107,17 @@ class StructuredDocument(BaseModel):
 
 
 
+class RenderedDocument(BaseModel):
+    """A single rendered document from a renderer."""
+    documentData: bytes = Field(description="Document content as bytes")
+    mimeType: str = Field(description="MIME type of the document (e.g., 'text/html', 'application/pdf')")
+    filename: str = Field(description="Filename for the document (e.g., 'report.html', 'image.png')")
+    
+    class Config:
+        json_encoders = {
+            bytes: lambda v: v.decode('utf-8', errors='replace') if isinstance(v, bytes) else v
+        }
+
+
 # Update forward references
 ListItem.model_rebuild()

modules/services/serviceAi/mainServiceAi.py

@@ -11,6 +11,7 @@ from modules.services.serviceExtraction.mainServiceExtraction import ExtractionS
 from modules.datamodels.datamodelAi import AiCallRequest, AiCallOptions, OperationTypeEnum, PriorityEnum, ProcessingModeEnum
 from modules.datamodels.datamodelExtraction import ContentPart, DocumentIntent
 from modules.datamodels.datamodelWorkflow import AiResponse, AiResponseMetadata, DocumentData
+from modules.datamodels.datamodelDocument import RenderedDocument
 from modules.interfaces.interfaceAiObjects import AiObjects
 from modules.shared.jsonUtils import (
     extractJsonString,
@@ -494,20 +495,21 @@ Respond with ONLY a JSON object in this exact format:
         title: str,
         userPrompt: str,
         parentOperationId: str
-    ) -> Tuple[bytes, str]:
+    ) -> List[RenderedDocument]:
         """
         Phase 5E: Rendert gefüllte Struktur zum Ziel-Format.
-        Unterstützt Multi-Dokument-Rendering: Alle Dokumente werden gerendert.
+        Jedes Dokument wird einzeln gerendert, jeder Renderer kann 1..n Dokumente zurückgeben.
         
         Args:
             filledStructure: Gefüllte Struktur mit elements
-            outputFormat: Ziel-Format (pdf, docx, html, etc.)
+            outputFormat: Ziel-Format (pdf, docx, html, etc.) - wird für alle Dokumente verwendet
             title: Dokument-Titel
             userPrompt: User-Anfrage
             parentOperationId: Parent Operation-ID für ChatLog-Hierarchie
         
         Returns:
-            Tuple von (renderedContent, mimeType)
+            List of RenderedDocument objects.
+            Jedes RenderedDocument repräsentiert ein gerendertes Dokument (Hauptdokument oder unterstützende Datei)
         """
         # Erstelle Operation-ID für Rendering
         renderOperationId = f"{parentOperationId}_rendering"
@@ -526,51 +528,21 @@ Respond with ONLY a JSON object in this exact format:
             
             generationService = GenerationService(self.services)
             
-            # Multi-Dokument-Rendering
-            documents = filledStructure.get("documents", [])
-            
-            if len(documents) == 1:
-                # Einzelnes Dokument - wie bisher
-                renderedContent, mimeType, images = await generationService.renderReport(
-                    filledStructure,
-                    outputFormat,
-                    title,
-                    userPrompt,
-                    self,
-                    parentOperationId=renderOperationId  # Parent-Referenz für ChatLog-Hierarchie
-                )
-            else:
-                # Mehrere Dokumente - rendere alle
-                # Option: Alle Sections zusammenführen und als ein Dokument rendern
-                all_sections = []
-                for doc in documents:
-                    if "sections" in doc:
-                        all_sections.extend(doc.get("sections", []))
-                
-                # Erstelle temporäres Dokument mit allen Sections
-                merged_document = {
-                    "metadata": filledStructure["metadata"],
-                    "documents": [{
-                        "id": "merged",
-                        "title": title,
-                        "filename": f"{title}.{outputFormat}",
-                        "sections": all_sections
-                    }]
-                }
-                
-                renderedContent, mimeType, images = await generationService.renderReport(
-                    merged_document,
-                    outputFormat,
-                    title,
-                    userPrompt,
-                    self,
-                    parentOperationId=renderOperationId  # Parent-Referenz für ChatLog-Hierarchie
-                )
+            # renderReport verarbeitet jetzt jedes Dokument einzeln
+            # und gibt Liste von (documentData, mimeType, filename) zurück
+            renderedDocuments = await generationService.renderReport(
+                filledStructure,
+                outputFormat,
+                title,
+                userPrompt,
+                self,
+                parentOperationId=renderOperationId  # Parent-Referenz für ChatLog-Hierarchie
+            )
             
             # ChatLog abschließen
             self.services.chat.progressLogFinish(renderOperationId, True)
             
-            return renderedContent, mimeType
+            return renderedDocuments
             
         except Exception as e:
             self.services.chat.progressLogFinish(renderOperationId, False)
@@ -712,7 +684,8 @@ Respond with ONLY a JSON object in this exact format:
             )
             
             # Schritt 5E: Rendere Resultat
-            renderedContent, mimeType = await self._renderResult(
+            # Jedes Dokument wird einzeln gerendert, kann 1..n Dateien zurückgeben (z.B. HTML + Bilder)
+            renderedDocuments = await self._renderResult(
                 filledStructure,
                 outputFormat,
                 title or "Generated Document",
@@ -720,15 +693,24 @@ Respond with ONLY a JSON object in this exact format:
                 aiOperationId
             )
             
-            # Baue Response
-            documentName = self._determineDocumentName(filledStructure, outputFormat, title)
+            # Baue Response: Konvertiere alle gerenderten Dokumente zu DocumentData
+            documentDataList = []
+            for renderedDoc in renderedDocuments:
+                try:
+                    # Erstelle DocumentData für jedes gerenderte Dokument
+                    docDataObj = DocumentData(
+                        documentName=renderedDoc.filename,
+                        documentData=renderedDoc.documentData,
+                        mimeType=renderedDoc.mimeType,
+                        sourceJson=filledStructure if len(documentDataList) == 0 else None  # Nur für erstes Dokument
+                    )
+                    documentDataList.append(docDataObj)
+                    logger.debug(f"Added rendered document: {renderedDoc.filename} ({len(renderedDoc.documentData)} bytes, {renderedDoc.mimeType})")
+                except Exception as e:
+                    logger.warning(f"Error creating document {renderedDoc.filename}: {str(e)}")
             
-            docData = DocumentData(
-                documentName=documentName,
-                documentData=renderedContent,
-                mimeType=mimeType,
-                sourceJson=filledStructure
-            )
+            if not documentDataList:
+                raise ValueError("No documents were rendered")
             
             metadata = AiResponseMetadata(
                 title=title or filledStructure.get("metadata", {}).get("title", "Generated Document"),
@@ -746,7 +728,7 @@ Respond with ONLY a JSON object in this exact format:
             return AiResponse(
                 content=json.dumps(filledStructure),
                 metadata=metadata,
-                documents=[docData]
+                documents=documentDataList
             )
             
         except Exception as e:

modules/services/serviceAi/subStructureFilling.py

@@ -35,65 +35,184 @@ class StructureFiller:
         parentOperationId: str
     ) -> Dict[str, Any]:
         """
-        Phase 5D: Füllt Struktur mit tatsächlichem Content.
-        Für jede Section:
-        - Wenn contentPartIds spezifiziert: Verwende ContentParts im spezifizierten Format
-        - Wenn generation_hint spezifiziert: Generiere AI-Content
+        Phase 5D: Chapter-Content-Generierung (Zwei-Phasen-Ansatz).
         
-        **Implementierungsdetails:**
-        - Sections werden **parallel generiert**, wenn möglich (Performance-Optimierung)
-        - Fehlerhafte Sections werden mit Fehlermeldung gerendert (kein Abbruch des gesamten Prozesses)
+        Phase 5D.1: Generiert Sections-Struktur für jedes Chapter
+        Phase 5D.2: Füllt Sections mit ContentParts
         
         Args:
-            structure: Struktur-Dict mit documents und sections
+            structure: Struktur-Dict mit documents und chapters (nicht sections!)
             contentParts: Alle vorbereiteten ContentParts
             userPrompt: User-Anfrage
             parentOperationId: Parent Operation-ID für ChatLog-Hierarchie
         
         Returns:
-            Gefüllte Struktur mit elements in jeder Section
+            Gefüllte Struktur mit elements in jeder Section (nach Flattening)
         """
         # Erstelle Operation-ID für Struktur-Abfüllen
         fillOperationId = f"{parentOperationId}_structure_filling"
         
+        # Prüfe ob Struktur Chapters oder Sections hat
+        hasChapters = False
+        for doc in structure.get("documents", []):
+            if "chapters" in doc:
+                hasChapters = True
+                break
+        
+        if not hasChapters:
+            # Fallback: Alte Struktur mit Sections direkt - verwende alte Logik
+            logger.warning("Structure has no chapters, using legacy section-based filling")
+            return await self._fillStructureLegacy(structure, contentParts, userPrompt, fillOperationId)
+        
         # Starte ChatLog mit Parent-Referenz
+        chapterCount = sum(len(doc.get("chapters", [])) for doc in structure.get("documents", []))
         self.services.chat.progressLogStart(
             fillOperationId,
-            "Structure Filling",
+            "Chapter Content Generation",
             "Filling",
-            f"Filling {len(structure.get('documents', [{}])[0].get('sections', []))} sections",
+            f"Processing {chapterCount} chapters",
             parentOperationId=parentOperationId
         )
         
         try:
             filledStructure = copy.deepcopy(structure)
             
-            # Sammle alle Sections für sequenzielle Verarbeitung (parallel kann später optimiert werden)
-            sections_to_process = []
-            all_sections_list = []  # Für Kontext-Informationen
-            for doc in filledStructure.get("documents", []):
-                doc_sections = doc.get("sections", [])
-                all_sections_list.extend(doc_sections)
-                for section in doc_sections:
-                    sections_to_process.append((doc, section))
+            # Phase 5D.1: Sections-Struktur für jedes Chapter generieren
+            filledStructure = await self._generateChapterSectionsStructure(
+                filledStructure, contentParts, userPrompt, fillOperationId
+            )
             
-            # Sequenzielle Section-Generierung (parallel kann später hinzugefügt werden)
-            for sectionIndex, (doc, section) in enumerate(sections_to_process):
-                sectionId = section.get("id")
-                contentPartIds = section.get("contentPartIds", [])
-                contentFormats = section.get("contentFormats", {})
-                generationHint = section.get("generation_hint")
-                contentType = section.get("content_type", "paragraph")
+            # Phase 5D.2: Sections mit ContentParts füllen
+            filledStructure = await self._fillChapterSections(
+                filledStructure, contentParts, userPrompt, fillOperationId
+            )
             
-                elements = []
+            # Flattening: Chapters zu Sections konvertieren
+            flattenedStructure = self._flattenChaptersToSections(filledStructure)
             
-                # Prüfe ob Aggregation nötig ist
-                needsAggregation = self._needsAggregation(
-                    contentType=contentType,
-                    contentPartCount=len(contentPartIds)
+            # Füge ContentParts-Metadaten zur Struktur hinzu (für Validierung)
+            flattenedStructure = self._addContentPartsMetadata(flattenedStructure, contentParts)
+            
+            # ChatLog abschließen
+            self.services.chat.progressLogFinish(fillOperationId, True)
+            
+            return flattenedStructure
+        
+        except Exception as e:
+            self.services.chat.progressLogFinish(fillOperationId, False)
+            logger.error(f"Error in fillStructure: {str(e)}")
+            raise
+    
+    async def _generateChapterSectionsStructure(
+        self,
+        chapterStructure: Dict[str, Any],
+        contentParts: List[ContentPart],
+        userPrompt: str,
+        parentOperationId: str
+    ) -> Dict[str, Any]:
+        """
+        Phase 5D.1: Generiert Sections-Struktur für jedes Chapter (ohne Content).
+        Sections enthalten: content_type, contentPartIds, generationHint, useAiCall
+        """
+        for doc in chapterStructure.get("documents", []):
+            for chapter in doc.get("chapters", []):
+                chapterId = chapter.get("id", "unknown")
+                chapterLevel = chapter.get("level", 1)
+                chapterTitle = chapter.get("title", "")
+                generationHint = chapter.get("generationHint", "")
+                contentPartIds = chapter.get("contentPartIds", [])
+                contentPartInstructions = chapter.get("contentPartInstructions", {})
+                
+                chapterPrompt = self._buildChapterSectionsStructurePrompt(
+                    chapterId=chapterId,
+                    chapterLevel=chapterLevel,
+                    chapterTitle=chapterTitle,
+                    generationHint=generationHint,
+                    contentPartIds=contentPartIds,
+                    contentPartInstructions=contentPartInstructions,
+                    contentParts=contentParts,
+                    userPrompt=userPrompt
                 )
                 
-                if needsAggregation and generationHint:
+                # Debug: Log Prompt
+                self.services.utils.writeDebugFile(
+                    chapterPrompt,
+                    f"chapter_structure_{chapterId}_prompt"
+                )
+                
+                aiResponse = await self.aiService.callAiPlanning(
+                    prompt=chapterPrompt,
+                    debugType=f"chapter_structure_{chapterId}"
+                )
+                
+                # Debug: Log Response
+                self.services.utils.writeDebugFile(
+                    aiResponse,
+                    f"chapter_structure_{chapterId}_response"
+                )
+                
+                sectionsStructure = json.loads(
+                    self.services.utils.jsonExtractString(aiResponse)
+                )
+                
+                chapter["sections"] = sectionsStructure.get("sections", [])
+                
+                # Setze useAiCall Flag (falls nicht von AI gesetzt)
+                for section in chapter["sections"]:
+                    if "useAiCall" not in section:
+                        contentType = section.get("content_type", "paragraph")
+                        useAiCall = contentType != "paragraph"
+                        
+                        # Prüfe contentPartInstructions
+                        if not useAiCall:
+                            for partId in section.get("contentPartIds", []):
+                                instruction = contentPartInstructions.get(partId, {}).get("instruction", "")
+                                if instruction and instruction.lower() not in ["include full text", "include all content", "use full extracted text"]:
+                                    useAiCall = True
+                                    break
+                        
+                        section["useAiCall"] = useAiCall
+        
+        return chapterStructure
+    
+    async def _fillChapterSections(
+        self,
+        chapterStructure: Dict[str, Any],
+        contentParts: List[ContentPart],
+        userPrompt: str,
+        parentOperationId: str
+    ) -> Dict[str, Any]:
+        """
+        Phase 5D.2: Füllt Sections mit ContentParts.
+        """
+        # Sammle alle Sections für sequenzielle Verarbeitung
+        sections_to_process = []
+        all_sections_list = []  # Für Kontext-Informationen
+        for doc in chapterStructure.get("documents", []):
+            for chapter in doc.get("chapters", []):
+                for section in chapter.get("sections", []):
+                    all_sections_list.append(section)
+                    sections_to_process.append((doc, chapter, section))
+        
+        # Sequenzielle Section-Generierung
+        fillOperationId = parentOperationId
+        for sectionIndex, (doc, chapter, section) in enumerate(sections_to_process):
+            sectionId = section.get("id")
+            contentPartIds = section.get("contentPartIds", [])
+            contentFormats = section.get("contentFormats", {})
+            generationHint = section.get("generation_hint")
+            contentType = section.get("content_type", "paragraph")
+            useAiCall = section.get("useAiCall", False)
+            
+            elements = []
+            
+            # Prüfe ob Aggregation nötig ist
+            needsAggregation = self._needsAggregation(
+                contentType=contentType,
+                contentPartCount=len(contentPartIds)
+            )
+            
+            if needsAggregation and useAiCall:
                     # Aggregation: Alle Parts zusammen verarbeiten
                     sectionParts = [
                         self._findContentPartById(pid, contentParts)
@@ -202,7 +321,7 @@ class StructureFiller:
                                 logger.error(f"Error generating section {sectionId}: {str(e)}")
                                 # NICHT raise - Section wird mit Fehlermeldung gerendert
             
-                else:
+            else:
                     # Einzelverarbeitung: Jeder Part einzeln
                     for partId in contentPartIds:
                         part = self._findContentPartById(partId, contentParts)
@@ -309,18 +428,428 @@ class StructureFiller:
                                     "extractionPrompt": part.metadata.get("extractionPrompt")
                                 })
             
+            section["elements"] = elements
+        
+        return chapterStructure
+    
+    def _addContentPartsMetadata(
+        self,
+        structure: Dict[str, Any],
+        contentParts: List[ContentPart]
+    ) -> Dict[str, Any]:
+        """
+        Fügt ContentParts-Metadaten zur Struktur hinzu, wenn contentPartIds vorhanden sind.
+        Dies hilft der Validierung, den Kontext der ContentParts zu verstehen.
+        """
+        # Erstelle Mapping von ContentPart-ID zu Metadaten
+        contentPartsMap = {}
+        for part in contentParts:
+            contentPartsMap[part.id] = {
+                "id": part.id,
+                "format": part.metadata.get("contentFormat", "unknown"),
+                "type": part.typeGroup,
+                "mimeType": part.mimeType,
+                "originalFileName": part.metadata.get("originalFileName"),
+                "usageHint": part.metadata.get("usageHint"),
+                "documentId": part.metadata.get("documentId"),
+                "dataSize": len(str(part.data)) if part.data else 0
+            }
+        
+        # Füge Metadaten zu Sections hinzu, die contentPartIds haben
+        for doc in structure.get("documents", []):
+            # Prüfe ob Chapters vorhanden sind (neue Struktur)
+            if "chapters" in doc:
+                for chapter in doc.get("chapters", []):
+                    # Füge Metadaten zu Chapter-Level contentPartIds hinzu
+                    chapterContentPartIds = chapter.get("contentPartIds", [])
+                    if chapterContentPartIds:
+                        chapter["contentPartsMetadata"] = []
+                        for partId in chapterContentPartIds:
+                            if partId in contentPartsMap:
+                                chapter["contentPartsMetadata"].append(contentPartsMap[partId])
+                    
+                    # Füge Metadaten zu Sections hinzu
+                    for section in chapter.get("sections", []):
+                        contentPartIds = section.get("contentPartIds", [])
+                        if contentPartIds:
+                            section["contentPartsMetadata"] = []
+                            for partId in contentPartIds:
+                                if partId in contentPartsMap:
+                                    section["contentPartsMetadata"].append(contentPartsMap[partId])
+            
+            # Prüfe ob Sections direkt vorhanden sind (Legacy-Struktur)
+            elif "sections" in doc:
+                for section in doc.get("sections", []):
+                    contentPartIds = section.get("contentPartIds", [])
+                    if contentPartIds:
+                        section["contentPartsMetadata"] = []
+                        for partId in contentPartIds:
+                            if partId in contentPartsMap:
+                                section["contentPartsMetadata"].append(contentPartsMap[partId])
+        
+        return structure
+    
+    def _flattenChaptersToSections(
+        self,
+        chapterStructure: Dict[str, Any]
+    ) -> Dict[str, Any]:
+        """
+        Flattening: Konvertiert Chapters zu finaler Section-Struktur.
+        Jedes Chapter wird zu einer Heading-Section + dessen Sections.
+        """
+        result = {
+            "metadata": chapterStructure.get("metadata", {}),
+            "documents": []
+        }
+        
+        for doc in chapterStructure.get("documents", []):
+            flattened_doc = {
+                "id": doc.get("id"),
+                "title": doc.get("title"),
+                "filename": doc.get("filename"),
+                "sections": []
+            }
+            
+            for chapter in doc.get("chapters", []):
+                # 1. Vordefinierte Heading-Section für Chapter-Title
+                heading_section = {
+                    "id": f"{chapter['id']}_heading",
+                    "content_type": "heading",
+                    "elements": [{
+                        "type": "heading",
+                        "content": chapter.get("title"),
+                        "level": chapter.get("level", 1)
+                    }]
+                }
+                flattened_doc["sections"].append(heading_section)
+                
+                # 2. Generierte Sections
+                flattened_doc["sections"].extend(chapter.get("sections", []))
+            
+            result["documents"].append(flattened_doc)
+        
+        return result
+    
+    async def _fillStructureLegacy(
+        self,
+        structure: Dict[str, Any],
+        contentParts: List[ContentPart],
+        userPrompt: str,
+        fillOperationId: str
+    ) -> Dict[str, Any]:
+        """
+        Legacy: Füllt Struktur mit Sections direkt (für Rückwärtskompatibilität).
+        """
+        # Starte ChatLog
+        self.services.chat.progressLogStart(
+            fillOperationId,
+            "Structure Filling (Legacy)",
+            "Filling",
+            f"Filling {len(structure.get('documents', [{}])[0].get('sections', []))} sections",
+            parentOperationId=fillOperationId
+        )
+        
+        try:
+            filledStructure = copy.deepcopy(structure)
+            
+            # Sammle alle Sections
+            sections_to_process = []
+            all_sections_list = []
+            for doc in filledStructure.get("documents", []):
+                doc_sections = doc.get("sections", [])
+                all_sections_list.extend(doc_sections)
+                for section in doc_sections:
+                    sections_to_process.append((doc, section))
+            
+            # Verarbeite Sections (bestehende Logik)
+            for sectionIndex, (doc, section) in enumerate(sections_to_process):
+                sectionId = section.get("id")
+                contentPartIds = section.get("contentPartIds", [])
+                contentFormats = section.get("contentFormats", {})
+                generationHint = section.get("generation_hint")
+                contentType = section.get("content_type", "paragraph")
+                
+                elements = []
+                
+                # Prüfe ob Aggregation nötig ist
+                needsAggregation = self._needsAggregation(
+                    contentType=contentType,
+                    contentPartCount=len(contentPartIds)
+                )
+                
+                if needsAggregation and generationHint:
+                    # Aggregation: Alle Parts zusammen verarbeiten
+                    sectionParts = [
+                        self._findContentPartById(pid, contentParts)
+                        for pid in contentPartIds
+                    ]
+                    sectionParts = [p for p in sectionParts if p is not None]
+                    
+                    if sectionParts:
+                        # Filtere nur extracted Parts für Aggregation
+                        extractedParts = [
+                            p for p in sectionParts
+                            if contentFormats.get(p.id, p.metadata.get("contentFormat")) == "extracted"
+                        ]
+                        nonExtractedParts = [
+                            p for p in sectionParts
+                            if contentFormats.get(p.id, p.metadata.get("contentFormat")) != "extracted"
+                        ]
+                        
+                        # Verarbeite non-extracted Parts separat
+                        for part in nonExtractedParts:
+                            contentFormat = contentFormats.get(part.id, part.metadata.get("contentFormat"))
+                            
+                            if contentFormat == "reference":
+                                elements.append({
+                                    "type": "reference",
+                                    "documentReference": part.metadata.get("documentReference"),
+                                    "label": part.metadata.get("usageHint", part.label)
+                                })
+                            elif contentFormat == "object":
+                                elements.append({
+                                    "type": part.typeGroup,
+                                    "base64Data": part.data,
+                                    "mimeType": part.mimeType,
+                                    "altText": part.metadata.get("usageHint", part.label)
+                                })
+                        
+                        # Aggregiere extracted Parts mit AI
+                        if extractedParts:
+                            generationPrompt = self._buildSectionGenerationPrompt(
+                                section=section,
+                                contentParts=extractedParts,
+                                userPrompt=userPrompt,
+                                generationHint=generationHint,
+                                allSections=all_sections_list,
+                                sectionIndex=sectionIndex,
+                                isAggregation=True
+                            )
+                            
+                            sectionOperationId = f"{fillOperationId}_section_{sectionId}"
+                            
+                            self.services.chat.progressLogStart(
+                                sectionOperationId,
+                                "Section Generation (Aggregation)",
+                                "Section",
+                                f"Generating section {sectionId} with {len(extractedParts)} parts",
+                                parentOperationId=fillOperationId
+                            )
+                            
+                            try:
+                                self.services.utils.writeDebugFile(
+                                    generationPrompt,
+                                    f"section_content_{sectionId}_prompt"
+                                )
+                                
+                                request = AiCallRequest(
+                                    prompt=generationPrompt,
+                                    contentParts=extractedParts,
+                                    options=AiCallOptions(
+                                        operationType=OperationTypeEnum.DATA_ANALYSE,
+                                        priority=PriorityEnum.BALANCED,
+                                        processingMode=ProcessingModeEnum.DETAILED
+                                    )
+                                )
+                                aiResponse = await self.aiService.callAi(request)
+                                
+                                self.services.utils.writeDebugFile(
+                                    aiResponse.content,
+                                    f"section_content_{sectionId}_response"
+                                )
+                                
+                                generatedElements = json.loads(
+                                    self.services.utils.jsonExtractString(aiResponse.content)
+                                )
+                                if isinstance(generatedElements, list):
+                                    elements.extend(generatedElements)
+                                elif isinstance(generatedElements, dict) and "elements" in generatedElements:
+                                    elements.extend(generatedElements["elements"])
+                                
+                                self.services.chat.progressLogFinish(sectionOperationId, True)
+                            
+                            except Exception as e:
+                                self.services.chat.progressLogFinish(sectionOperationId, False)
+                                elements.append({
+                                    "type": "error",
+                                    "message": f"Error generating section {sectionId}: {str(e)}",
+                                    "sectionId": sectionId
+                                })
+                                logger.error(f"Error generating section {sectionId}: {str(e)}")
+                
+                else:
+                    # Einzelverarbeitung: Jeder Part einzeln
+                    for partId in contentPartIds:
+                        part = self._findContentPartById(partId, contentParts)
+                        if not part:
+                            continue
+                        
+                        contentFormat = contentFormats.get(partId, part.metadata.get("contentFormat"))
+                        
+                        if contentFormat == "reference":
+                            elements.append({
+                                "type": "reference",
+                                "documentReference": part.metadata.get("documentReference"),
+                                "label": part.metadata.get("usageHint", part.label)
+                            })
+                        
+                        elif contentFormat == "object":
+                            elements.append({
+                                "type": part.typeGroup,
+                                "base64Data": part.data,
+                                "mimeType": part.mimeType,
+                                "altText": part.metadata.get("usageHint", part.label)
+                            })
+                        
+                        elif contentFormat == "extracted":
+                            if generationHint:
+                                # AI-Call mit einzelnen ContentPart
+                                generationPrompt = self._buildSectionGenerationPrompt(
+                                    section=section,
+                                    contentParts=[part],
+                                    userPrompt=userPrompt,
+                                    generationHint=generationHint,
+                                    allSections=all_sections_list,
+                                    sectionIndex=sectionIndex,
+                                    isAggregation=False
+                                )
+                                
+                                sectionOperationId = f"{fillOperationId}_section_{sectionId}"
+                                
+                                self.services.chat.progressLogStart(
+                                    sectionOperationId,
+                                    "Section Generation",
+                                    "Section",
+                                    f"Generating section {sectionId}",
+                                    parentOperationId=fillOperationId
+                                )
+                                
+                                try:
+                                    self.services.utils.writeDebugFile(
+                                        generationPrompt,
+                                        f"section_content_{sectionId}_prompt"
+                                    )
+                                    
+                                    request = AiCallRequest(
+                                        prompt=generationPrompt,
+                                        contentParts=[part],
+                                        options=AiCallOptions(
+                                            operationType=OperationTypeEnum.DATA_ANALYSE,
+                                            priority=PriorityEnum.BALANCED,
+                                            processingMode=ProcessingModeEnum.DETAILED
+                                        )
+                                    )
+                                    aiResponse = await self.aiService.callAi(request)
+                                    
+                                    self.services.utils.writeDebugFile(
+                                        aiResponse.content,
+                                        f"section_content_{sectionId}_response"
+                                    )
+                                    
+                                    generatedElements = json.loads(
+                                        self.services.utils.jsonExtractString(aiResponse.content)
+                                    )
+                                    if isinstance(generatedElements, list):
+                                        elements.extend(generatedElements)
+                                    elif isinstance(generatedElements, dict) and "elements" in generatedElements:
+                                        elements.extend(generatedElements["elements"])
+                                    
+                                    self.services.chat.progressLogFinish(sectionOperationId, True)
+                                
+                                except Exception as e:
+                                    self.services.chat.progressLogFinish(sectionOperationId, False)
+                                    elements.append({
+                                        "type": "error",
+                                        "message": f"Error generating section {sectionId}: {str(e)}",
+                                        "sectionId": sectionId
+                                    })
+                                    logger.error(f"Error generating section {sectionId}: {str(e)}")
+                            else:
+                                elements.append({
+                                    "type": "extracted_text",
+                                    "content": part.data,
+                                    "source": part.metadata.get("documentId"),
+                                    "extractionPrompt": part.metadata.get("extractionPrompt")
+                                })
+                
                 section["elements"] = elements
             
-            # ChatLog abschließen
-            self.services.chat.progressLogFinish(fillOperationId, True)
+            # Füge ContentParts-Metadaten zur Struktur hinzu (für Validierung)
+            filledStructure = self._addContentPartsMetadata(filledStructure, contentParts)
             
+            self.services.chat.progressLogFinish(fillOperationId, True)
             return filledStructure
         
         except Exception as e:
             self.services.chat.progressLogFinish(fillOperationId, False)
-            logger.error(f"Error in fillStructure: {str(e)}")
+            logger.error(f"Error in _fillStructureLegacy: {str(e)}")
             raise
     
+    def _buildChapterSectionsStructurePrompt(
+        self,
+        chapterId: str,
+        chapterLevel: int,
+        chapterTitle: str,
+        generationHint: str,
+        contentPartIds: List[str],
+        contentPartInstructions: Dict[str, Any],
+        contentParts: List[ContentPart],
+        userPrompt: str
+    ) -> str:
+        """Baue Prompt für Chapter-Sections-Struktur-Generierung."""
+        # Baue ContentParts-Index (nur IDs, keine Previews!)
+        contentPartsIndex = ""
+        for partId in contentPartIds:
+            part = self._findContentPartById(partId, contentParts)
+            if not part:
+                continue
+            
+            contentFormat = part.metadata.get("contentFormat", "unknown")
+            instruction = contentPartInstructions.get(partId, {}).get("instruction", "Use content as needed")
+            
+            contentPartsIndex += f"\n- ContentPart ID: {partId}\n"
+            contentPartsIndex += f"  Format: {contentFormat}\n"
+            contentPartsIndex += f"  Type: {part.typeGroup}\n"
+            contentPartsIndex += f"  Instruction: {instruction}\n"
+        
+        if not contentPartsIndex:
+            contentPartsIndex = "\n(No content parts specified for this chapter)"
+        
+        prompt = f"""TASK: Generate Chapter Sections Structure
+
+CHAPTER METADATA:
+- Chapter ID: {chapterId}
+- Chapter Level: {chapterLevel}
+- Chapter Title: {chapterTitle}
+- Generation Hint: {generationHint}
+
+WICHTIG: Chapter hat bereits vordefinierte Heading-Section.
+Generiere NICHT eine Heading-Section für Chapter-Title!
+
+AVAILABLE CONTENT PARTS:
+{contentPartsIndex}
+
+STANDARD JSON SCHEMA FOR SECTIONS:
+Supported content_types: table, bullet_list, heading, paragraph, code_block, image
+
+Return JSON:
+{{
+  "sections": [
+    {{
+      "id": "section_1",
+      "content_type": "paragraph",
+      "contentPartIds": ["part_ext_1"],
+      "generationHint": "...",
+      "useAiCall": false,
+      "elements": []
+    }}
+  ]
+}}
+
+CRITICAL: Return ONLY valid JSON. Do not include any explanatory text outside the JSON.
+"""
+        return prompt
+    
     def _buildSectionGenerationPrompt(
         self,
         section: Dict[str, Any],

modules/services/serviceAi/subStructureGeneration.py

@@ -32,11 +32,12 @@ class StructureGenerator:
         parentOperationId: str
     ) -> Dict[str, Any]:
         """
-        Phase 5C: Generiert Dokument-Struktur mit Sections.
-        Jede Section spezifiziert:
-        - Welcher Content sollte in dieser Section sein
-        - Welche ContentParts zu verwenden sind
-        - Format für jeden ContentPart
+        Phase 5C: Generiert Chapter-Struktur (Table of Contents).
+        Definiert für jedes Chapter:
+        - Level, Title
+        - contentPartIds
+        - contentPartInstructions
+        - generationHint
         
         Args:
             userPrompt: User-Anfrage
@@ -45,7 +46,7 @@ class StructureGenerator:
             parentOperationId: Parent Operation-ID für ChatLog-Hierarchie
             
         Returns:
-            Struktur-Dict mit documents und sections
+            Struktur-Dict mit documents und chapters (nicht sections!)
         """
         # Erstelle Operation-ID für Struktur-Generierung
         structureOperationId = f"{parentOperationId}_structure_generation"
@@ -53,25 +54,36 @@ class StructureGenerator:
         # Starte ChatLog mit Parent-Referenz
         self.services.chat.progressLogStart(
             structureOperationId,
-            "Structure Generation",
+            "Chapter Structure Generation",
             "Structure",
-            f"Generating structure for {outputFormat}",
+            f"Generating chapter structure for {outputFormat}",
             parentOperationId=parentOperationId
         )
         
         try:
-            # Baue Struktur-Prompt mit Content-Index
-            structurePrompt = self._buildStructurePrompt(
+            # Baue Chapter-Struktur-Prompt mit Content-Index
+            structurePrompt = self._buildChapterStructurePrompt(
                 userPrompt=userPrompt,
                 contentParts=contentParts,
                 outputFormat=outputFormat
             )
             
-            # AI-Call für Struktur-Generierung (verwende callAiPlanning für einfache JSON-Responses)
-            # Debug-Logs werden bereits von callAiPlanning geschrieben
+            # Debug: Log Prompt
+            self.services.utils.writeDebugFile(
+                structurePrompt,
+                "chapter_structure_generation_prompt"
+            )
+            
+            # AI-Call für Chapter-Struktur-Generierung
             aiResponse = await self.aiService.callAiPlanning(
                 prompt=structurePrompt,
-                debugType="document_generation_structure"
+                debugType="chapter_structure_generation"
+            )
+            
+            # Debug: Log Response
+            self.services.utils.writeDebugFile(
+                aiResponse,
+                "chapter_structure_generation_response"
             )
             
             # Parse Struktur
@@ -87,13 +99,13 @@ class StructureGenerator:
             logger.error(f"Error in generateStructure: {str(e)}")
             raise
     
-    def _buildStructurePrompt(
+    def _buildChapterStructurePrompt(
         self,
         userPrompt: str,
         contentParts: List[ContentPart],
         outputFormat: str
     ) -> str:
-        """Baue Prompt für Struktur-Generierung."""
+        """Baue Prompt für Chapter-Struktur-Generierung."""
         # Baue ContentParts-Index - filtere leere Parts heraus
         contentPartsIndex = ""
         validParts = []
@@ -179,14 +191,19 @@ class StructureGenerator:
 AVAILABLE CONTENT PARTS:
 {contentPartsIndex}
 
-TASK: Generiere Dokument-Struktur mit Sections.
-Für jede Section, spezifiziere:
-- section id
-- content_type (heading, paragraph, image, table, etc.)
-- contentPartIds: [Liste von ContentPart-IDs zu verwenden]
-- contentFormats: {{"partId": "reference|object|extracted"}} - Wie jeder ContentPart zu verwenden ist
-- generation_hint: Was AI für diese Section generieren soll
-- elements: [] (leer, wird in nächster Phase gefüllt)
+TASK: Generiere Chapter-Struktur für die zu generierenden Dokumente.
+
+Für jedes Chapter:
+- chapter id
+- level (1, 2, 3, etc.)
+- title
+- contentPartIds: [Liste von ContentPart-IDs]
+- contentPartInstructions: {{
+    "partId": {{
+        "instruction": "Wie Content strukturiert werden soll"
+    }}
+}}
+- generationHint: Beschreibung des Inhalts
 
 OUTPUT FORMAT: {outputFormat}
 
@@ -200,24 +217,19 @@ RETURN JSON:
     "id": "doc_1",
     "title": "Document Title",
     "filename": "document.{outputFormat}",
-    "sections": [
+    "chapters": [
       {{
-        "id": "section_1",
-        "content_type": "heading",
-        "generation_hint": "Main title",
-        "contentPartIds": [],
-        "contentFormats": {{}},
-        "elements": []
-      }},
-      {{
-        "id": "section_2",
-        "content_type": "paragraph",
-        "generation_hint": "Introduction paragraph",
+        "id": "chapter_1",
+        "level": 1,
+        "title": "Introduction",
         "contentPartIds": ["part_ext_1"],
-        "contentFormats": {{
-          "part_ext_1": "extracted"
+        "contentPartInstructions": {{
+          "part_ext_1": {{
+            "instruction": "Use full extracted text"
+          }}
         }},
-        "elements": []
+        "generationHint": "Create introduction section",
+        "sections": []
       }}
     ]
   }}]

modules/services/serviceGeneration/mainServiceGeneration.py

@@ -5,6 +5,7 @@ import uuid
 import base64
 import traceback
 from typing import Any, Dict, List, Optional, Callable
+from modules.datamodels.datamodelDocument import RenderedDocument
 from modules.datamodels.datamodelChat import ChatDocument
 from modules.services.serviceGeneration.subDocumentUtility import (
     getFileExtension,
@@ -345,31 +346,31 @@ class GenerationService:
                 'workflowId': 'unknown'
             }
 
-    async def renderReport(self, extractedContent: Dict[str, Any], outputFormat: str, title: str, userPrompt: str = None, aiService=None, parentOperationId: Optional[str] = None) -> tuple[str, str, List[Dict[str, Any]]]:
+    async def renderReport(self, extractedContent: Dict[str, Any], outputFormat: str, title: str, userPrompt: str = None, aiService=None, parentOperationId: Optional[str] = None) -> List[RenderedDocument]:
         """
         Render extracted JSON content to the specified output format.
-        Supports multiple documents in documents array (Phase 5: Multi-Dokument-Rendering).
-        Always uses unified "documents" array format.
-        Supports three content formats: reference, object (base64), extracted_text.
+        Processes EACH document separately and calls renderer for each.
+        Each renderer can return 1..n documents (e.g., HTML + images).
         
         Args:
-            extractedContent: Structured JSON document from AI extraction
+            extractedContent: Structured JSON document with documents array
             outputFormat: Target format (html, pdf, docx, txt, md, json, csv, xlsx)
+                          In future, each document can have its own format
             title: Report title
             userPrompt: User's original prompt for report generation
             aiService: AI service instance for generation prompt creation
             parentOperationId: Optional parent operation ID for hierarchical logging
             
         Returns:
-            tuple: (rendered_content, mime_type, images_list)
-            images_list: List of image dicts with base64Data, altText, caption, etc.
+            List of RenderedDocument objects.
+            Each RenderedDocument represents one rendered file (main document or supporting file)
         """
         try:
             # Validate JSON input
             if not isinstance(extractedContent, dict):
                 raise ValueError("extractedContent must be a JSON dictionary")
             
-            # Unified approach: Always expect "documents" array (single doc = n=1)
+            # Unified approach: Always expect "documents" array
             if "documents" not in extractedContent:
                 raise ValueError("extractedContent must contain 'documents' array")
             
@@ -377,56 +378,45 @@ class GenerationService:
             if len(documents) == 0:
                 raise ValueError("No documents found in 'documents' array")
             
-            # Phase 5: Multi-Dokument-Rendering
-            if len(documents) == 1:
-                # Single document - use existing logic
-                single_doc = documents[0]
-                if "sections" not in single_doc:
-                    raise ValueError("Document must contain 'sections' field")
+            metadata = extractedContent.get("metadata", {})
+            allRenderedDocuments = []
             
-                # Pass standardized schema to renderer (maintains architecture)
-                contentToRender = extractedContent  # Pass full standardized schema
-            else:
-                # Multiple documents - merge all sections into one document for rendering
-                # Option: Merge all sections from all documents into a single document
-                all_sections = []
-                for doc in documents:
-                    if isinstance(doc, dict) and "sections" in doc:
-                        sections = doc.get("sections", [])
-                        if isinstance(sections, list):
-                            all_sections.extend(sections)
+            # Process EACH document separately
+            for docIndex, doc in enumerate(documents):
+                if not isinstance(doc, dict):
+                    logger.warning(f"Skipping invalid document at index {docIndex}")
+                    continue
                 
-                if not all_sections:
-                    raise ValueError("No sections found in any document")
+                if "sections" not in doc:
+                    logger.warning(f"Document {doc.get('id', docIndex)} has no sections, skipping")
+                    continue
                 
-                # Create merged document with all sections
-                merged_document = {
-                    "metadata": extractedContent.get("metadata", {}),
-                    "documents": [{
-                        "id": "merged",
-                        "title": title,
-                        "filename": f"{title}.{outputFormat}",
-                        "sections": all_sections
-                    }]
+                # Determine format for this document
+                # TODO: In future, each document can have its own format field
+                # For now, use the global outputFormat
+                docFormat = doc.get("format", outputFormat)
+                
+                # Get renderer for this document's format
+                renderer = self._getFormatRenderer(docFormat)
+                if not renderer:
+                    logger.warning(f"Unsupported format '{docFormat}' for document {doc.get('id', docIndex)}, skipping")
+                    continue
+                
+                # Create JSON structure with single document (preserving metadata)
+                singleDocContent = {
+                    "metadata": metadata,
+                    "documents": [doc]  # Only this document
                 }
-                contentToRender = merged_document
-                logger.info(f"Rendering {len(documents)} documents with {len(all_sections)} total sections")
                 
-            # Get the appropriate renderer for the format
-            renderer = self._getFormatRenderer(outputFormat)
-            if not renderer:
-                raise ValueError(f"Unsupported output format: {outputFormat}")
+                # Use document title or fallback to provided title
+                docTitle = doc.get("title", title)
                 
-            # Render the JSON content directly (AI generation handled by main service)
-            # Renderer receives standardized schema and extracts what it needs
-            renderedContent, mimeType = await renderer.render(contentToRender, title, userPrompt, aiService)
+                # Render this document (can return multiple files, e.g., HTML + images)
+                renderedDocs = await renderer.render(singleDocContent, docTitle, userPrompt, aiService)
+                allRenderedDocuments.extend(renderedDocs)
             
-            # Get images from renderer if available
-            images = []
-            if hasattr(renderer, 'getRenderedImages'):
-                images = renderer.getRenderedImages()
-            
-            return renderedContent, mimeType, images
+            logger.info(f"Rendered {len(documents)} document(s) into {len(allRenderedDocuments)} file(s)")
+            return allRenderedDocuments
             
         except Exception as e:
             logger.error(f"Error rendering JSON report to {outputFormat}: {str(e)}")

modules/services/serviceGeneration/renderers/rendererBaseTemplate.py

@@ -5,8 +5,9 @@ Base renderer class for all format renderers.
 """
 
 from abc import ABC, abstractmethod
-from typing import Dict, Any, Tuple, List
+from typing import Dict, Any, List
 from modules.datamodels.datamodelJson import supportedSectionTypes
+from modules.datamodels.datamodelDocument import RenderedDocument
 import json
 import logging
 import re
@@ -50,21 +51,49 @@ class BaseRenderer(ABC):
         return 0
     
     @abstractmethod
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
         """
-        Render extracted JSON content to the target format.
+        Render extracted JSON content to multiple documents.
+        Each renderer must implement this method.
+        Can return 1..n documents (e.g., HTML + images).
         
         Args:
-            extractedContent: Structured JSON content with sections and metadata
+            extractedContent: Structured JSON content with sections and metadata (contains single document)
             title: Report title
             userPrompt: Original user prompt for context
             aiService: AI service instance for additional processing
             
         Returns:
-            tuple: (renderedContent, mimeType)
+            List of RenderedDocument objects.
+            First document is the main document, additional documents are supporting files (e.g., images).
+            Even if only one document is returned, it must be wrapped in a list.
         """
         pass
     
+    def _determineFilename(self, title: str, mimeType: str) -> str:
+        """Determine filename from title and mimeType."""
+        import re
+        # Get extension from mimeType
+        extensionMap = {
+            "text/html": "html",
+            "application/pdf": "pdf",
+            "application/vnd.openxmlformats-officedocument.wordprocessingml.document": "docx",
+            "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": "xlsx",
+            "text/plain": "txt",
+            "text/markdown": "md",
+            "application/json": "json",
+            "text/csv": "csv"
+        }
+        extension = extensionMap.get(mimeType, "txt")
+        
+        # Sanitize title for filename
+        sanitized = re.sub(r"[^a-zA-Z0-9._-]", "_", title)
+        sanitized = re.sub(r"_+", "_", sanitized).strip("_")
+        if not sanitized:
+            sanitized = "document"
+        
+        return f"{sanitized}.{extension}"
+    
     def _extractSections(self, reportData: Dict[str, Any]) -> List[Dict[str, Any]]:
         """
         Extract sections from standardized schema: {metadata: {...}, documents: [{sections: [...]}]}

modules/services/serviceGeneration/renderers/rendererCsv.py

@@ -5,7 +5,8 @@ CSV renderer for report generation.
 """
 
 from .rendererBaseTemplate import BaseRenderer
-from typing import Dict, Any, Tuple, List
+from modules.datamodels.datamodelDocument import RenderedDocument
+from typing import Dict, Any, List
 
 class RendererCsv(BaseRenderer):
     """Renders content to CSV format with format-specific extraction."""
@@ -25,13 +26,28 @@ class RendererCsv(BaseRenderer):
         """Return priority for CSV renderer."""
         return 70
     
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
         """Render extracted JSON content to CSV format."""
         try:
             # Generate CSV directly from JSON (no styling needed for CSV)
             csvContent = await self._generateCsvFromJson(extractedContent, title)
             
-            return csvContent, "text/csv"
+            # Determine filename from document or title
+            documents = extractedContent.get("documents", [])
+            if documents and isinstance(documents[0], dict):
+                filename = documents[0].get("filename")
+                if not filename:
+                    filename = self._determineFilename(title, "text/csv")
+            else:
+                filename = self._determineFilename(title, "text/csv")
+            
+            return [
+                RenderedDocument(
+                    documentData=csvContent.encode('utf-8'),
+                    mimeType="text/csv",
+                    filename=filename
+                )
+            ]
             
         except Exception as e:
             self.logger.error(f"Error rendering CSV: {str(e)}")

modules/services/serviceGeneration/renderers/rendererDocx.py

@@ -5,7 +5,8 @@ DOCX renderer for report generation using python-docx.
 """
 
 from .rendererBaseTemplate import BaseRenderer
-from typing import Dict, Any, Tuple, List
+from modules.datamodels.datamodelDocument import RenderedDocument
+from typing import Dict, Any, List
 import io
 import base64
 import re
@@ -38,7 +39,7 @@ class RendererDocx(BaseRenderer):
         """Return priority for DOCX renderer."""
         return 115
     
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
         """Render extracted JSON content to DOCX format using AI-analyzed styling."""
         self.services.utils.debugLogToFile(f"DOCX RENDER CALLED: title={title}, user_prompt={userPrompt[:50] if userPrompt else 'None'}...", "DOCX_RENDERER")
         try:
@@ -46,18 +47,48 @@ class RendererDocx(BaseRenderer):
                 # Fallback to HTML if python-docx not available
                 from .rendererHtml import RendererHtml
                 htmlRenderer = RendererHtml()
-                htmlContent, _ = await htmlRenderer.render(extractedContent, title)
-                return htmlContent, "text/html"
+                return await htmlRenderer.render(extractedContent, title, userPrompt, aiService)
             
             # Generate DOCX using AI-analyzed styling
             docx_content = await self._generateDocxFromJson(extractedContent, title, userPrompt, aiService)
             
-            return docx_content, "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
+            # Determine filename from document or title
+            documents = extractedContent.get("documents", [])
+            if documents and isinstance(documents[0], dict):
+                filename = documents[0].get("filename")
+                if not filename:
+                    filename = self._determineFilename(title, "application/vnd.openxmlformats-officedocument.wordprocessingml.document")
+            else:
+                filename = self._determineFilename(title, "application/vnd.openxmlformats-officedocument.wordprocessingml.document")
+            
+            # Convert DOCX content to bytes if it's a string (base64)
+            if isinstance(docx_content, str):
+                try:
+                    docx_bytes = base64.b64decode(docx_content)
+                except Exception:
+                    docx_bytes = docx_content.encode('utf-8')
+            else:
+                docx_bytes = docx_content
+            
+            return [
+                RenderedDocument(
+                    documentData=docx_bytes,
+                    mimeType="application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+                    filename=filename
+                )
+            ]
             
         except Exception as e:
             self.logger.error(f"Error rendering DOCX: {str(e)}")
             # Return minimal fallback
-            return f"DOCX Generation Error: {str(e)}", "text/plain"
+            fallbackContent = f"DOCX Generation Error: {str(e)}"
+            return [
+                RenderedDocument(
+                    documentData=fallbackContent.encode('utf-8'),
+                    mimeType="text/plain",
+                    filename=self._determineFilename(title, "text/plain")
+                )
+            ]
     
     async def _generateDocxFromJson(self, json_content: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> str:
         """Generate DOCX content from structured JSON document."""

modules/services/serviceGeneration/renderers/rendererHtml.py

@@ -5,7 +5,8 @@ HTML renderer for report generation.
 """
 
 from .rendererBaseTemplate import BaseRenderer
-from typing import Dict, Any, Tuple, List
+from modules.datamodels.datamodelDocument import RenderedDocument
+from typing import Dict, Any, List
 
 class RendererHtml(BaseRenderer):
     """Renders content to HTML format with format-specific extraction."""
@@ -25,29 +26,66 @@ class RendererHtml(BaseRenderer):
         """Return priority for HTML renderer."""
         return 100
     
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
-        """Render extracted JSON content to HTML format using AI-analyzed styling."""
-        try:
-            # Extract images first
-            images = self._extractImages(extractedContent)
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
+        """
+        Render HTML document with images as separate files.
+        Returns list of documents: [HTML document, image1, image2, ...]
+        """
+        import base64
         
-            # Store images in instance for later retrieval
-            self._renderedImages = images
+        # Extract images first
+        images = self._extractImages(extractedContent)
         
-            # Generate HTML using AI-analyzed styling
-            htmlContent = await self._generateHtmlFromJson(extractedContent, title, userPrompt, aiService)
+        # Store images in instance for later retrieval
+        self._renderedImages = images
         
-            # Replace base64 data URIs with relative file paths if images exist
-            if images:
-                htmlContent = self._replaceImageDataUris(htmlContent, images)
+        # Generate HTML using AI-analyzed styling
+        htmlContent = await self._generateHtmlFromJson(extractedContent, title, userPrompt, aiService)
         
-            return htmlContent, "text/html"
+        # Replace base64 data URIs with relative file paths if images exist
+        if images:
+            htmlContent = self._replaceImageDataUris(htmlContent, images)
         
-        except Exception as e:
-            self.logger.error(f"Error rendering HTML: {str(e)}")
-            # Return minimal HTML fallback
-            self._renderedImages = []  # Initialize empty list on error
-            return f"<html><head><title>{title}</title></head><body><h1>{title}</h1><p>Error rendering report: {str(e)}</p></body></html>", "text/html"
+        # Determine HTML filename from document or title
+        documents = extractedContent.get("documents", [])
+        if documents and isinstance(documents[0], dict):
+            htmlFilename = documents[0].get("filename")
+            if not htmlFilename:
+                htmlFilename = self._determineFilename(title, "text/html")
+        else:
+            htmlFilename = self._determineFilename(title, "text/html")
+        
+        # Start with HTML document
+        resultDocuments = [
+            RenderedDocument(
+                documentData=htmlContent.encode('utf-8'),
+                mimeType="text/html",
+                filename=htmlFilename
+            )
+        ]
+        
+        # Add images as separate documents
+        for img in images:
+            base64Data = img.get("base64Data", "")
+            filename = img.get("filename", f"image_{len(resultDocuments)}.png")
+            mimeType = img.get("mimeType", "image/png")
+            
+            if base64Data:
+                try:
+                    # Decode base64 to bytes
+                    imageBytes = base64.b64decode(base64Data)
+                    resultDocuments.append(
+                        RenderedDocument(
+                            documentData=imageBytes,
+                            mimeType=mimeType,
+                            filename=filename
+                        )
+                    )
+                    self.logger.debug(f"Added image file: {filename} ({len(imageBytes)} bytes)")
+                except Exception as e:
+                    self.logger.warning(f"Error creating image file {filename}: {str(e)}")
+        
+        return resultDocuments
     
     async def _generateHtmlFromJson(self, jsonContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> str:
         """Generate HTML content from structured JSON document using AI-generated styling."""
@@ -597,8 +635,31 @@ class RendererHtml(BaseRenderer):
                             
                             if base64Data:
                                 sectionId = section.get("id", "unknown")
+                                
+                                # Bestimme MIME-Type und Extension
+                                mimeType = element.get("mimeType", "image/png")
+                                if not mimeType or mimeType == "unknown":
+                                    # Versuche MIME-Type aus base64 zu erkennen
+                                    if base64Data.startswith("/9j/"):
+                                        mimeType = "image/jpeg"
+                                    elif base64Data.startswith("iVBORw0KGgo"):
+                                        mimeType = "image/png"
+                                    else:
+                                        mimeType = "image/png"  # Default
+                                
+                                # Bestimme Extension basierend auf MIME-Type
+                                extension = "png"
+                                if mimeType == "image/jpeg" or mimeType == "image/jpg":
+                                    extension = "jpg"
+                                elif mimeType == "image/png":
+                                    extension = "png"
+                                elif mimeType == "image/gif":
+                                    extension = "gif"
+                                elif mimeType == "image/webp":
+                                    extension = "webp"
+                                
                                 # Generate filename from section ID
-                                filename = f"{sectionId}.png"
+                                filename = f"{sectionId}.{extension}"
                                 # Clean filename (remove invalid characters)
                                 filename = "".join(c if c.isalnum() or c in "._-" else "_" for c in filename)
                                 
@@ -607,7 +668,8 @@ class RendererHtml(BaseRenderer):
                                     "altText": element.get("altText", "Image"),
                                     "caption": element.get("caption"),
                                     "sectionId": sectionId,
-                                    "filename": filename
+                                    "filename": filename,
+                                    "mimeType": mimeType
                                 })
                                 self.logger.debug(f"Extracted image from section {sectionId}: {filename}")
             
@@ -633,8 +695,9 @@ class RendererHtml(BaseRenderer):
             import base64
             import re
             
-            # Find all image data URIs in HTML
-            dataUriPattern = r'data:image/png;base64,([A-Za-z0-9+/=]+)'
+            # Find all image data URIs in HTML (verschiedene MIME-Types unterstützen)
+            # Pattern: data:image/[type];base64,<base64>
+            dataUriPattern = r'data:image/[^;]+;base64,([A-Za-z0-9+/=]+)'
             
             def replaceDataUri(match):
                 base64Data = match.group(1)
@@ -642,7 +705,9 @@ class RendererHtml(BaseRenderer):
                 # Find matching image in images list
                 matchingImage = None
                 for img in images:
-                    if img["base64Data"] == base64Data or img["base64Data"].startswith(base64Data[:100]):
+                    imgBase64 = img.get("base64Data", "")
+                    # Vergleiche base64-Daten (kann unterschiedliche Längen haben durch Padding)
+                    if imgBase64 == base64Data or imgBase64.startswith(base64Data[:100]) or base64Data.startswith(imgBase64[:100]):
                         matchingImage = img
                         break
                 
@@ -650,20 +715,25 @@ class RendererHtml(BaseRenderer):
                     # Use filename from image data (generated from section ID)
                     filename = matchingImage.get("filename", f"image_{images.index(matchingImage) + 1}.png")
                     
-                    # Replace with relative path
+                    # Replace with relative path (ohne Pfad, nur Dateiname)
                     altText = matchingImage.get("altText", "Image")
                     caption = matchingImage.get("caption", "")
                     
+                    # Entferne IMAGE_MARKER Kommentar falls vorhanden
+                    imgTag = f'<img src="{filename}" alt="{altText}">'
+                    
                     if caption:
-                        return f'<figure><img src="{filename}" alt="{altText}"><figcaption>{caption}</figcaption></figure>'
+                        return f'<figure>{imgTag}<figcaption>{caption}</figcaption></figure>'
                     else:
-                        return f'<img src="{filename}" alt="{altText}">'
+                        return imgTag
                 else:
                     # Keep original if no match found
                     return match.group(0)
             
-            # Replace all data URIs
+            # Replace all data URIs (auch IMAGE_MARKER Kommentare entfernen)
             updatedHtml = re.sub(dataUriPattern, replaceDataUri, htmlContent)
+            # Entferne IMAGE_MARKER Kommentare die übrig geblieben sind
+            updatedHtml = re.sub(r'<!--IMAGE_MARKER:[^>]+-->', '', updatedHtml)
             
             return updatedHtml
             

modules/services/serviceGeneration/renderers/rendererImage.py

@@ -5,8 +5,10 @@ Image renderer for report generation using AI image generation.
 """
 
 from .rendererBaseTemplate import BaseRenderer
-from typing import Dict, Any, Tuple, List
+from modules.datamodels.datamodelDocument import RenderedDocument
+from typing import Dict, Any, List
 import logging
+import base64
 
 logger = logging.getLogger(__name__)
 
@@ -28,13 +30,37 @@ class RendererImage(BaseRenderer):
         """Return priority for image renderer."""
         return 90
     
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
         """Render extracted JSON content to image format using AI image generation."""
         try:
             # Generate AI image from content
             imageContent = await self._generateAiImage(extractedContent, title, userPrompt, aiService)
             
-            return imageContent, "image/png"
+            # Determine filename from document or title
+            documents = extractedContent.get("documents", [])
+            if documents and isinstance(documents[0], dict):
+                filename = documents[0].get("filename")
+                if not filename:
+                    filename = self._determineFilename(title, "image/png")
+            else:
+                filename = self._determineFilename(title, "image/png")
+            
+            # Convert image content to bytes (base64 string or bytes)
+            if isinstance(imageContent, str):
+                try:
+                    imageBytes = base64.b64decode(imageContent)
+                except Exception:
+                    imageBytes = imageContent.encode('utf-8')
+            else:
+                imageBytes = imageContent
+            
+            return [
+                RenderedDocument(
+                    documentData=imageBytes,
+                    mimeType="image/png",
+                    filename=filename
+                )
+            ]
             
         except Exception as e:
             self.logger.error(f"Error rendering image: {str(e)}")

modules/services/serviceGeneration/renderers/rendererJson.py

@@ -5,7 +5,8 @@ JSON renderer for report generation.
 """
 
 from .rendererBaseTemplate import BaseRenderer
-from typing import Dict, Any, Tuple, List
+from modules.datamodels.datamodelDocument import RenderedDocument
+from typing import Dict, Any, List
 import json
 
 class RendererJson(BaseRenderer):
@@ -26,14 +27,29 @@ class RendererJson(BaseRenderer):
         """Return priority for JSON renderer."""
         return 80
     
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
         """Render extracted JSON content to JSON format."""
         try:
             # The extracted content should already be JSON from the AI
             # Just validate and format it
             jsonContent = self._cleanJsonContent(extractedContent, title)
             
-            return jsonContent, "application/json"
+            # Determine filename from document or title
+            documents = extractedContent.get("documents", [])
+            if documents and isinstance(documents[0], dict):
+                filename = documents[0].get("filename")
+                if not filename:
+                    filename = self._determineFilename(title, "application/json")
+            else:
+                filename = self._determineFilename(title, "application/json")
+            
+            return [
+                RenderedDocument(
+                    documentData=jsonContent.encode('utf-8'),
+                    mimeType="application/json",
+                    filename=filename
+                )
+            ]
             
         except Exception as e:
             self.logger.error(f"Error rendering JSON: {str(e)}")
@@ -43,7 +59,14 @@ class RendererJson(BaseRenderer):
                 "sections": [{"content_type": "paragraph", "elements": [{"text": f"Error rendering report: {str(e)}"}]}],
                 "metadata": {"error": str(e)}
             }
-            return json.dumps(fallbackData, indent=2), "application/json"
+            fallbackContent = json.dumps(fallbackData, indent=2)
+            return [
+                RenderedDocument(
+                    documentData=fallbackContent.encode('utf-8'),
+                    mimeType="application/json",
+                    filename=self._determineFilename(title, "application/json")
+                )
+            ]
     
     def _cleanJsonContent(self, content: Dict[str, Any], title: str) -> str:
         """Clean and validate JSON content from AI."""

modules/services/serviceGeneration/renderers/rendererMarkdown.py

@@ -5,7 +5,8 @@ Markdown renderer for report generation.
 """
 
 from .rendererBaseTemplate import BaseRenderer
-from typing import Dict, Any, Tuple, List
+from modules.datamodels.datamodelDocument import RenderedDocument
+from typing import Dict, Any, List
 
 class RendererMarkdown(BaseRenderer):
     """Renders content to Markdown format with format-specific extraction."""
@@ -25,18 +26,40 @@ class RendererMarkdown(BaseRenderer):
         """Return priority for markdown renderer."""
         return 95
     
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
         """Render extracted JSON content to Markdown format."""
         try:
             # Generate markdown from JSON structure
             markdownContent = self._generateMarkdownFromJson(extractedContent, title)
             
-            return markdownContent, "text/markdown"
+            # Determine filename from document or title
+            documents = extractedContent.get("documents", [])
+            if documents and isinstance(documents[0], dict):
+                filename = documents[0].get("filename")
+                if not filename:
+                    filename = self._determineFilename(title, "text/markdown")
+            else:
+                filename = self._determineFilename(title, "text/markdown")
+            
+            return [
+                RenderedDocument(
+                    documentData=markdownContent.encode('utf-8'),
+                    mimeType="text/markdown",
+                    filename=filename
+                )
+            ]
             
         except Exception as e:
             self.logger.error(f"Error rendering markdown: {str(e)}")
             # Return minimal markdown fallback
-            return f"# {title}\n\nError rendering report: {str(e)}", "text/markdown"
+            fallbackContent = f"# {title}\n\nError rendering report: {str(e)}"
+            return [
+                RenderedDocument(
+                    documentData=fallbackContent.encode('utf-8'),
+                    mimeType="text/markdown",
+                    filename=self._determineFilename(title, "text/markdown")
+                )
+            ]
     
     def _generateMarkdownFromJson(self, jsonContent: Dict[str, Any], title: str) -> str:
         """Generate markdown content from structured JSON document."""

modules/services/serviceGeneration/renderers/rendererPdf.py

@@ -5,7 +5,8 @@ PDF renderer for report generation using reportlab.
 """
 
 from .rendererBaseTemplate import BaseRenderer
-from typing import Dict, Any, Tuple, List
+from modules.datamodels.datamodelDocument import RenderedDocument
+from typing import Dict, Any, List
 import io
 import base64
 
@@ -38,25 +39,56 @@ class RendererPdf(BaseRenderer):
         """Return priority for PDF renderer."""
         return 120
     
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
         """Render extracted JSON content to PDF format using AI-analyzed styling."""
         try:
             if not REPORTLAB_AVAILABLE:
                 # Fallback to HTML if reportlab not available
                 from .rendererHtml import RendererHtml
                 html_renderer = RendererHtml()
-                html_content, _ = await html_renderer.render(extractedContent, title, userPrompt, aiService)
-                return html_content, "text/html"
+                return await html_renderer.render(extractedContent, title, userPrompt, aiService)
             
             # Generate PDF using AI-analyzed styling
             pdf_content = await self._generatePdfFromJson(extractedContent, title, userPrompt, aiService)
             
-            return pdf_content, "application/pdf"
+            # Determine filename from document or title
+            documents = extractedContent.get("documents", [])
+            if documents and isinstance(documents[0], dict):
+                filename = documents[0].get("filename")
+                if not filename:
+                    filename = self._determineFilename(title, "application/pdf")
+            else:
+                filename = self._determineFilename(title, "application/pdf")
+            
+            # Convert PDF content to bytes if it's a string (base64)
+            if isinstance(pdf_content, str):
+                # Try to decode as base64, otherwise encode as UTF-8
+                try:
+                    pdf_bytes = base64.b64decode(pdf_content)
+                except Exception:
+                    pdf_bytes = pdf_content.encode('utf-8')
+            else:
+                pdf_bytes = pdf_content
+            
+            return [
+                RenderedDocument(
+                    documentData=pdf_bytes,
+                    mimeType="application/pdf",
+                    filename=filename
+                )
+            ]
             
         except Exception as e:
             self.logger.error(f"Error rendering PDF: {str(e)}")
             # Return minimal fallback
-            return f"PDF Generation Error: {str(e)}", "text/plain"
+            fallbackContent = f"PDF Generation Error: {str(e)}"
+            return [
+                RenderedDocument(
+                    documentData=fallbackContent.encode('utf-8'),
+                    mimeType="text/plain",
+                    filename=self._determineFilename(title, "text/plain")
+                )
+            ]
     
     async def _generatePdfFromJson(self, json_content: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> str:
         """Generate PDF content from structured JSON document using AI-generated styling."""

modules/services/serviceGeneration/renderers/rendererPptx.py

@@ -6,8 +6,9 @@ import io
 import json
 import re
 from datetime import datetime, UTC
-from typing import Dict, Any, Optional, Tuple, List
+from typing import Dict, Any, Optional, List
 from .rendererBaseTemplate import BaseRenderer
+from modules.datamodels.datamodelDocument import RenderedDocument
 
 logger = logging.getLogger(__name__)
 
@@ -25,7 +26,7 @@ class RendererPptx(BaseRenderer):
         """Get list of supported output formats."""
         return ["pptx", "ppt"]
     
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
         """
         Render content as PowerPoint presentation from JSON data.
         
@@ -204,14 +205,44 @@ class RendererPptx(BaseRenderer):
             pptx_base64 = base64.b64encode(pptx_bytes).decode('utf-8')
             
             logger.info(f"Successfully rendered PowerPoint presentation: {len(pptx_bytes)} bytes")
-            return pptx_base64, "application/vnd.openxmlformats-officedocument.presentationml.presentation"
+            
+            # Determine filename from document or title
+            documents = extractedContent.get("documents", [])
+            if documents and isinstance(documents[0], dict):
+                filename = documents[0].get("filename")
+                if not filename:
+                    filename = self._determineFilename(title, "application/vnd.openxmlformats-officedocument.presentationml.presentation")
+            else:
+                filename = self._determineFilename(title, "application/vnd.openxmlformats-officedocument.presentationml.presentation")
+            
+            return [
+                RenderedDocument(
+                    documentData=pptx_bytes,
+                    mimeType="application/vnd.openxmlformats-officedocument.presentationml.presentation",
+                    filename=filename
+                )
+            ]
             
         except ImportError:
             logger.error("python-pptx library not installed. Install with: pip install python-pptx")
-            return "python-pptx library not installed", "text/plain"
+            fallbackContent = "python-pptx library not installed"
+            return [
+                RenderedDocument(
+                    documentData=fallbackContent.encode('utf-8'),
+                    mimeType="text/plain",
+                    filename=self._determineFilename(title, "text/plain")
+                )
+            ]
         except Exception as e:
             logger.error(f"Error rendering PowerPoint presentation: {str(e)}")
-            return f"Error rendering PowerPoint presentation: {str(e)}", "text/plain"
+            fallbackContent = f"Error rendering PowerPoint presentation: {str(e)}"
+            return [
+                RenderedDocument(
+                    documentData=fallbackContent.encode('utf-8'),
+                    mimeType="text/plain",
+                    filename=self._determineFilename(title, "text/plain")
+                )
+            ]
     
     def _parseContentToSlides(self, content: str, title: str) -> list:
         """

modules/services/serviceGeneration/renderers/rendererText.py

@@ -5,7 +5,8 @@ Text renderer for report generation.
 """
 
 from .rendererBaseTemplate import BaseRenderer
-from typing import Dict, Any, Tuple, List
+from modules.datamodels.datamodelDocument import RenderedDocument
+from typing import Dict, Any, List
 
 class RendererText(BaseRenderer):
     """Renders content to plain text format with format-specific extraction."""
@@ -47,18 +48,40 @@ class RendererText(BaseRenderer):
         """Return priority for text renderer."""
         return 90
     
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
         """Render extracted JSON content to plain text format."""
         try:
             # Generate text from JSON structure
             textContent = self._generateTextFromJson(extractedContent, title)
             
-            return textContent, "text/plain"
+            # Determine filename from document or title
+            documents = extractedContent.get("documents", [])
+            if documents and isinstance(documents[0], dict):
+                filename = documents[0].get("filename")
+                if not filename:
+                    filename = self._determineFilename(title, "text/plain")
+            else:
+                filename = self._determineFilename(title, "text/plain")
+            
+            return [
+                RenderedDocument(
+                    documentData=textContent.encode('utf-8'),
+                    mimeType="text/plain",
+                    filename=filename
+                )
+            ]
             
         except Exception as e:
             self.logger.error(f"Error rendering text: {str(e)}")
             # Return minimal text fallback
-            return f"{title}\n\nError rendering report: {str(e)}", "text/plain"
+            fallbackContent = f"{title}\n\nError rendering report: {str(e)}"
+            return [
+                RenderedDocument(
+                    documentData=fallbackContent.encode('utf-8'),
+                    mimeType="text/plain",
+                    filename=self._determineFilename(title, "text/plain")
+                )
+            ]
     
     def _generateTextFromJson(self, jsonContent: Dict[str, Any], title: str) -> str:
         """Generate text content from structured JSON document."""

modules/services/serviceGeneration/renderers/rendererXlsx.py

@@ -5,7 +5,8 @@ Excel renderer for report generation using openpyxl.
 """
 
 from .rendererBaseTemplate import BaseRenderer
-from typing import Dict, Any, Tuple, List
+from modules.datamodels.datamodelDocument import RenderedDocument
+from typing import Dict, Any, List
 import io
 import base64
 from datetime import datetime, UTC
@@ -37,20 +38,43 @@ class RendererXlsx(BaseRenderer):
         """Return priority for Excel renderer."""
         return 110
     
-    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> Tuple[str, str]:
+    async def render(self, extractedContent: Dict[str, Any], title: str, userPrompt: str = None, aiService=None) -> List[RenderedDocument]:
         """Render extracted JSON content to Excel format using AI-analyzed styling."""
         try:
             if not OPENPYXL_AVAILABLE:
                 # Fallback to CSV if openpyxl not available
                 from .rendererCsv import RendererCsv
                 csvRenderer = RendererCsv()
-                csvContent, _ = await csvRenderer.render(extractedContent, title, userPrompt, aiService)
-                return csvContent, "text/csv"
+                return await csvRenderer.render(extractedContent, title, userPrompt, aiService)
             
             # Generate Excel using AI-analyzed styling
             excelContent = await self._generateExcelFromJson(extractedContent, title, userPrompt, aiService)
             
-            return excelContent, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
+            # Determine filename from document or title
+            documents = extractedContent.get("documents", [])
+            if documents and isinstance(documents[0], dict):
+                filename = documents[0].get("filename")
+                if not filename:
+                    filename = self._determineFilename(title, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
+            else:
+                filename = self._determineFilename(title, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
+            
+            # Convert Excel content to bytes if it's a string (base64)
+            if isinstance(excelContent, str):
+                try:
+                    excel_bytes = base64.b64decode(excelContent)
+                except Exception:
+                    excel_bytes = excelContent.encode('utf-8')
+            else:
+                excel_bytes = excelContent
+            
+            return [
+                RenderedDocument(
+                    documentData=excel_bytes,
+                    mimeType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+                    filename=filename
+                )
+            ]
             
         except Exception as e:
             self.logger.error(f"Error rendering Excel: {str(e)}")

modules/workflows/processing/adaptive/contentValidator.py

@@ -106,6 +106,18 @@ class ContentValidator:
                             if section.get("textPreview"):
                                 sectionSummary["textPreview"] = section.get("textPreview")
                         
+                        # Wenn contentPartIds vorhanden sind, aber keine elements: Füge ContentParts-Metadaten hinzu
+                        contentPartIds = section.get("contentPartIds", [])
+                        if contentPartIds and not elements:
+                            # Prüfe ob contentPartsMetadata vorhanden ist
+                            contentPartsMetadata = section.get("contentPartsMetadata", [])
+                            if contentPartsMetadata:
+                                sectionSummary["contentPartsMetadata"] = contentPartsMetadata
+                            else:
+                                # Fallback: Zeige nur IDs wenn Metadaten nicht verfügbar
+                                sectionSummary["contentPartIds"] = contentPartIds
+                                sectionSummary["note"] = "ContentParts referenced but metadata not available"
+                        
                         # Include any additional fields from section (generic approach)
                         # This ensures all action-specific fields are preserved
                         for key, value in section.items():
@@ -141,6 +153,18 @@ class ContentValidator:
                                 sectionSummary["rowCount"] = len(rows)
                                 sectionSummary["headers"] = headers
                         
+                        # Wenn contentPartIds vorhanden sind, aber keine elements: Füge ContentParts-Metadaten hinzu
+                        contentPartIds = section.get("contentPartIds", [])
+                        if contentPartIds and not elements:
+                            # Prüfe ob contentPartsMetadata vorhanden ist
+                            contentPartsMetadata = section.get("contentPartsMetadata", [])
+                            if contentPartsMetadata:
+                                sectionSummary["contentPartsMetadata"] = contentPartsMetadata
+                            else:
+                                # Fallback: Zeige nur IDs wenn Metadaten nicht verfügbar
+                                sectionSummary["contentPartIds"] = contentPartIds
+                                sectionSummary["note"] = "ContentParts referenced but metadata not available"
+                        
                         # Include any additional fields from section (generic approach)
                         for key, value in section.items():
                             if key not in sectionSummary and key not in ["elements"]:  # Skip elements as they're processed separately