feat(contributors): add fun emojis, legend, and sorting

- Custom emoji set: 🪲 Bug Hunter, 🧑‍💻 Code Contributor, ✍️ Documentation Hero, etc.
- Add legend to all README contributor sections
- Sort contributors by contribution count (most active first)
- Remove old emoji key links, use inline legend instead
- Sync emoji mappings across both generator scripts

labs/README.md

@@ -69,7 +69,9 @@ Labs are under active development. To be notified when they launch:
 
 ## Contributors
 
-Thanks to these wonderful people who helped build the labs ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
+Thanks to these wonderful people who helped build the labs!
+
+**Legend:** 🪲 Bug Hunter · ⚡ Code Warrior · 📚 Documentation Hero · 🎨 Design Artist · 🧠 Idea Generator · 🔎 Code Reviewer · 🧪 Test Engineer · 🛠️ Tool Builder
 
 <!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
 <!-- prettier-ignore-start -->
@@ -77,7 +79,7 @@ Thanks to these wonderful people who helped build the labs ([emoji key](https://
 <table>
   <tbody>
     <tr>
-      <td align="center" valign="top" width="14.28%"><a href="https://github.com/profvjreddi"><img src="https://avatars.githubusercontent.com/profvjreddi?v=4?s=80" width="80px;" alt="Vijay Janapa Reddi"/><br /><sub><b>Vijay Janapa Reddi</b></sub></a><br />💻 🎨 📖</td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/profvjreddi"><img src="https://avatars.githubusercontent.com/profvjreddi?v=4?s=80" width="80px;" alt="Vijay Janapa Reddi"/><br /><sub><b>Vijay Janapa Reddi</b></sub></a><br />🧑‍💻 🎨 ✍️</td>
     </tr>
   </tbody>
 </table>