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/frontend/src/views/receipts/ReceiptCreateView.vue

@@ -372,6 +372,7 @@ import { ref, computed, onMounted } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { useToast } from 'primevue/usetoast'
 import { useReceiptsStore } from '../../stores/receiptsStore'
+import { useCompanyStore } from '../../stores/companies'
 import OCRUploadZone from '../../components/ocr/OCRUploadZone.vue'
 import OCRPreview from '../../components/ocr/OCRPreview.vue'
 import Dialog from 'primevue/dialog'
@@ -380,11 +381,17 @@ const route = useRoute()
 const router = useRouter()
 const toast = useToast()
 const store = useReceiptsStore()
+const companyStore = useCompanyStore()
 
 const isEditMode = computed(() => !!route.params.id)
 const receiptId = computed(() => route.params.id)
 const receipt = ref(null)
 
+// Get selected company ID from store
+const getSelectedCompanyId = () => {
+  return companyStore.selectedCompanyId || 1
+}
+
 const form = ref({
   receipt_type: 'bon_fiscal',
   direction: 'cheltuiala',
@@ -398,7 +405,7 @@ const form = ref({
   cash_register_account: null,
   receipt_number: '',
   description: '',
-  company_id: 1, // Default company for Phase 1
+  company_id: getSelectedCompanyId(),
   // TVA info (multiple entries support)
   tva_breakdown: [],  // Array of {code, percent, amount}
   tva_total: null,
@@ -429,6 +436,9 @@ onMounted(async () => {
 
   if (isEditMode.value) {
     await loadReceipt()
+  } else {
+    // For new receipts, ensure company_id is set from the current selected company
+    form.value.company_id = companyStore.selectedCompanyId || 1
   }
 })