Enhance company search functionality with additional filters

- Updated the `SearchForm` to include optional filters for `name`, `email`, `phone`, and `employee_count`, allowing for more granular search capabilities.
- Modified the `Search` method in the `companyRepository` to handle the new filters, improving the search logic with regex support for `name`, `email`, and `phone`.
- Updated API documentation in the `company` handler to reflect the new query parameters for enhanced clarity.

This update improves the search functionality within the company domain, providing users with more flexible and precise search options.

internal/company/repository.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"errors"
 	"regexp"
-	"strconv"
 	"strings"
 	"time"
 	"tm/pkg/logger"
@@ -213,18 +212,36 @@ func (r *companyRepository) Search(ctx context.Context, form *SearchForm, pagina
 	filter := bson.M{}
 
 	if form.Search != nil {
-		search := strings.TrimSpace(*form.Search)
-		if search != "" {
-			pattern := regexp.QuoteMeta(search)
-			orConditions := []bson.M{
-				{"name": bson.M{"$regex": pattern, "$options": "i"}},
-				{"email": bson.M{"$regex": pattern, "$options": "i"}},
-				{"phone": bson.M{"$regex": pattern, "$options": "i"}},
+		filter["$text"] = bson.M{"$search": *form.Search}
+	}
+
+	if form.Name != nil {
+		name := strings.TrimSpace(*form.Name)
+		if name != "" {
+			filter["name"] = bson.M{
+				"$regex":   regexp.QuoteMeta(name),
+				"$options": "i",
 			}
-			if employeeCount, err := strconv.Atoi(search); err == nil {
-				orConditions = append(orConditions, bson.M{"employee_count": employeeCount})
+		}
+	}
+
+	if form.Email != nil {
+		email := strings.TrimSpace(*form.Email)
+		if email != "" {
+			filter["email"] = bson.M{
+				"$regex":   regexp.QuoteMeta(email),
+				"$options": "i",
+			}
+		}
+	}
+
+	if form.Phone != nil {
+		phone := strings.TrimSpace(*form.Phone)
+		if phone != "" {
+			filter["phone"] = bson.M{
+				"$regex":   regexp.QuoteMeta(phone),
+				"$options": "i",
 			}
-			filter["$or"] = orConditions
 		}
 	}
 
@@ -274,7 +291,9 @@ func (r *companyRepository) Search(ctx context.Context, form *SearchForm, pagina
 	}
 
 	// Range filters
-	if form.EmployeeCountMin != nil || form.EmployeeCountMax != nil {
+	if form.EmployeeCount != nil {
+		filter["employee_count"] = *form.EmployeeCount
+	} else if form.EmployeeCountMin != nil || form.EmployeeCountMax != nil {
 		rangeFilter := bson.M{}
 		if form.EmployeeCountMin != nil {
 			rangeFilter["$gte"] = *form.EmployeeCountMin