Add In-Game Concept Glossary & Help Button

[Prantik-07]

Problem

Players see terms like "DLQ" but don't know what they mean. They need a way to look up concepts without leaving the game.

Solution

Add a Concept Glossary that explains Knative terms.

Features:
•Searchable Dictionary: 10+ terms (Broker, Trigger, Source, etc.)
•Game vs Real World: Explains how the game mechanic relates to real Knative.
•Global Help Button: A ? button on the top-right of every level.
•Easy Access: Works anytime (success or failure).

This makes the game a proper learning tool, not just a puzzle!

[Prantik-07]

/assign