The Knowledge component is a Lightning component that displays relevant articles on the case record page based on the case information. Agents can use the component to search for articles, attach articles to cases, view article details, and provide feedback on articles. The Knowledge component helps agents find the information they need to resolve cases faster and more accurately. Verified References: Service Cloud Consultant Certification Guide & Tips, Use the Lightning Knowledge Component

Explanation
Standard Web-to-Case with assignment rules is a solution that can accomplish the requirement of allowing customers to log cases with structured data and route based on Urgency and Product Line. Web-to-Case enables customers to submit cases from a company's website using a web form that captures case information and creates a case record in Salesforce. Assignment rules can be used to automatically assign cases to queues or users based on criteria such as Urgency and Product Line. Verified References: :
https://help.salesforce.com/s/articleView?id=sf.knowledge_web_to_case_overview.htm&type=5 :
https://help.salesforce.com/s/articleView?id=sf.customize_caseassign.htm&type=5

For the software engineering team at Cloud Kicks to track projects within Salesforce, an AppExchange app dedicated to project management would be the most suitable solution. These apps are designed to handle project tracking functionalities, including task assignments, progress tracking, and collaboration features, tailored to project management needs. This approach allows for a specialized tool that integrates with Salesforce, providing a seamless experience for the engineering team without repurposing or overextending the functionality of Service Cloud case management.