Bug: Lesson 14 (Model Context Protocol) returns "LESSON NOT FOUND" on site

## Where * **Phase / lesson:** Phase 11 · 14-model-context-protocol * **File / URL:** [https://aiengineeringfromscratch.com/lesson.html?path=phases/11-llm-engineering/14-model-context-protocol](https://aiengineeringfromscratch.com/lesson.html?path=phases/11-llm-engineering/14-model-context-protocol) ## What's wrong The website returns a **"LESSON NOT FOUND"** error when attempting to access the Model Context Protocol (MCP) lesson. I expected the page to render the lesson content, as the [source Markdown file](https://github.com/rohitg00/ai-engineering-from-scratch/blob/main/phases/11-llm-engineering/14-model-context-protocol/docs/en.md) exists in the repository at the specified path. It appears to be a routing or deployment sync issue. ## Reproduce 1. Navigate to the [Roadmap](https://www.google.com/search?q=https://aiengineeringfromscratch.com/roadmap.html) or Phase 11 index. 2. Click on the "Model Context Protocol (MCP)" link. 3. Observe the "LESSON NOT FOUND" error message on the rendered page. ## Environment * **OS:** Browser (Chrome/Web) * **Runtime:** Production build of [aiengineeringfromscratch.com](https://aiengineeringfromscratch.com/) * **How you ran it:** Accessed via the live URL. ## Screenshot or logs `Could not fetch the lesson at phases/11-llm-engineering/14-model-context-protocol. It may not have been written yet.` <img width="1917" height="911" alt="Image" src="https://github.com/user-attachments/assets/8bf87042-c0be-4058-bb8e-a82d09da1716" />