feat: Add Markdown export service for DOCX and PDF formats

- Implemented MarkdownExportService to convert Markdown text into DOCX and PDF formats.
- Supported Markdown elements include headings, bold, italic, blockquotes, tables, and specific emojis.
- Added methods for generating DOCX and PDF documents with proper formatting and rendering.
- Enhanced application properties to enable logging for production environment.
- Introduced a test-run script to reset project state and trigger processing via API.

Co-authored-by: Copilot <copilot@github.com>

dc-backend/src/main/java/de/frigosped/dc/model/ProgressRequest.java

@@ -2,11 +2,23 @@ package de.frigosped.dc.model;
 
 /**
  * Request-Body für PUT /api/dc/projects/:id/progress
- * {"progress": 45}
+ *
+ * Felder (alle optional – null = nicht aktualisieren):
+ *   progress              0–100 Prozent
+ *   currentPhase          OCR | QUESTIONS | COMPLETED
+ *   currentDocId          ID des aktuell verarbeiteten Dokuments
+ *   currentQuestionId     ID der aktuell ausgewerteten Frage (null bei OCR)
+ *   estimatedCompletionAt ISO-8601-Zeitstempel (Schätzung Fertigstellung)
+ *
+ * Jackson serialisiert camelCase → snake_case (quarkus.jackson.property-naming-strategy=SNAKE_CASE).
  */
 public class ProgressRequest {
 
     private Integer progress;
+    private String currentPhase;
+    private Long currentDocId;
+    private Long currentQuestionId;
+    private String estimatedCompletionAt;
 
     public ProgressRequest() {}
 
@@ -14,6 +26,27 @@ public class ProgressRequest {
         this.progress = progress;
     }
 
-    public Integer getProgress()         { return progress; }
-    public void setProgress(Integer v)   { this.progress = v; }
+    public ProgressRequest(int progress, String currentPhase, Long currentDocId,
+                           Long currentQuestionId, String estimatedCompletionAt) {
+        this.progress              = progress;
+        this.currentPhase          = currentPhase;
+        this.currentDocId          = currentDocId;
+        this.currentQuestionId     = currentQuestionId;
+        this.estimatedCompletionAt = estimatedCompletionAt;
+    }
+
+    public Integer getProgress()                    { return progress; }
+    public void    setProgress(Integer v)           { this.progress = v; }
+
+    public String  getCurrentPhase()                { return currentPhase; }
+    public void    setCurrentPhase(String v)        { this.currentPhase = v; }
+
+    public Long    getCurrentDocId()                { return currentDocId; }
+    public void    setCurrentDocId(Long v)          { this.currentDocId = v; }
+
+    public Long    getCurrentQuestionId()           { return currentQuestionId; }
+    public void    setCurrentQuestionId(Long v)     { this.currentQuestionId = v; }
+
+    public String  getEstimatedCompletionAt()       { return estimatedCompletionAt; }
+    public void    setEstimatedCompletionAt(String v) { this.estimatedCompletionAt = v; }
 }