Implement Company Search and Update API Documentation

- Introduced a new search functionality for companies, allowing advanced filtering capabilities including tags, business criteria, and location.
- Updated the API documentation to reflect changes in the search endpoint, enhancing clarity for API consumers.
- Refactored existing company-related API endpoints for consistency, including renaming and restructuring routes.
- Enhanced response structures to return company entities directly, simplifying the response handling in API endpoints.
- Removed unused query parameters and handlers, streamlining the company management functionality.

internal/tender/service.go

@@ -173,7 +173,7 @@ func (s *tenderService) ListTenders(ctx context.Context, req ListTendersRequest)
 	}
 
 	// Get company CPV codes for match calculation
-	comp, err := s.companyService.GetCompanyByID(ctx, *req.CompanyID)
+	comp, err := s.companyService.GetByID(ctx, *req.CompanyID)
 	if err != nil {
 		s.logger.Error("Failed to get company for match calculation", map[string]interface{}{
 			"company_id": *req.CompanyID,
@@ -234,7 +234,7 @@ func (s *tenderService) RecommendTenders(ctx context.Context, companyID *string,
 		limit = 100
 	}
 
-	company, err := s.companyService.GetCompanyByID(ctx, *companyID)
+	company, err := s.companyService.GetByID(ctx, *companyID)
 	if err != nil {
 		s.logger.Error("Failed to get company", map[string]interface{}{
 			"company_id": *companyID,