feat: Add shared components, refactor stores, improve data-entry workflow

Shared Components:
- Add CompanySelector.vue and PeriodSelector.vue components
- Add AppHeader.vue and SlideMenu.vue layout components
- Add shared stores factories (companies.js, accountingPeriod.js)
- Add shared routes factories (companies.py, calendar.py)
- Add shared models (company.py, calendar.py)
- Add shared layout styles (header.css, navigation.css)

Data Entry App:
- Update CLAUDE.md with prod/test server documentation
- Improve nomenclature sync service with better error handling
- Update receipts router and CRUD operations
- Add company/period stores using shared factories
- Update App.vue layout with shared components
- Fix OCRUploadZone file handling

Reports App:
- Refactor stores to use shared factories
- Update App.vue to use shared layout components

Infrastructure:
- Replace start-data-entry.sh with separate dev/test scripts
- Add .claude/rules for authentication, backend patterns, etc.
- Add implementation plan for OCR receipt improvements
- Clean up old documentation files

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

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

data-entry-app/backend/app/db/crud/receipt.py

@@ -59,7 +59,9 @@ class ReceiptCRUD:
         session.add(receipt)
         await session.commit()
         await session.refresh(receipt)
-        return receipt
+
+        # Reload with relationships to avoid lazy loading issues with async
+        return await ReceiptCRUD.get_by_id(session, receipt.id, include_relations=True)
 
     @staticmethod
     async def get_by_id(
@@ -175,7 +177,9 @@ class ReceiptCRUD:
         session.add(receipt)
         await session.commit()
         await session.refresh(receipt)
-        return receipt
+
+        # Reload with relationships to avoid lazy loading issues with async
+        return await ReceiptCRUD.get_by_id(session, receipt.id, include_relations=True)
 
     @staticmethod
     async def update_status(
@@ -206,7 +210,9 @@ class ReceiptCRUD:
         session.add(receipt)
         await session.commit()
         await session.refresh(receipt)
-        return receipt
+
+        # Reload with relationships to avoid lazy loading issues with async
+        return await ReceiptCRUD.get_by_id(session, receipt.id, include_relations=True)
 
     @staticmethod
     async def delete(session: AsyncSession, receipt: Receipt) -> bool: