docs: Create vTiger & Simply-CRM integration setup guide with credential requirements
feat: Implement ticket system enhancements including relations, calendar events, templates, and AI suggestions
refactor: Update ticket system migration to include audit logging and enhanced email metadata
- Added `check_invoice_number_exists` method in `EconomicService` to verify invoice numbers in e-conomic journals.
- Introduced `quick_analysis_on_upload` method in `OllamaService` for extracting critical fields from uploaded PDFs, including CVR, document type, and document number.
- Created migration script to add new fields for storing detected CVR, vendor ID, document type, and document number in the `incoming_files` table.
- Developed comprehensive tests for the quick analysis functionality, validating CVR detection, document type identification, and invoice number extraction.
