Add Schadenprotokoll SPA with Python Flask API

New tool for processing damage protocols:
- Tab 1: Generate pre-filled PDF from Schadenlaufzettel.docx
- Tab 2: Analyze filled PDF forms and extract dropdown selections
- Tab 3: Generate Vorbericht.docx from filled PDF data

Backend: Flask API with pypdf and python-docx
Frontend: Vanilla JS SPA with drag-drop file upload

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -17,3 +17,4 @@ kostenschaetzung/
 schadendokumentation/
 zeitwert/
 .claude/
+__pycache__/