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/user/handler.go

@@ -316,7 +316,7 @@ func (h *Handler) ListUsers(c echo.Context) error {
 		return response.InternalServerError(c, "Failed to list users")
 	}
 
-	return response.Success(c, users, "Users retrieved successfully")
+	return response.SuccessWithMeta(c, users, users.Meta, "Users retrieved successfully")
 }
 
 // GetUserByID gets a user by ID (admin only)