docs: add weapp-vite DevTools to ecosystem showcase (#429)

Author: daguanren21

docs/content/4.ecosystem.md

@@ -200,6 +200,11 @@ sites:
     author: posva
     url: https://github.com/posva/pinia-colada/tree/main/devtools
     screenshot: /images/ecosystem/pinia-colada-devtools.webp
+  - name: weapp-vite DevTools
+    description: Analyzes WeChat mini-program bundles, tracks build and HMR events, and compares source files with generated output.
+    author: weapp-vite
+    url: https://github.com/weapp-vite/weapp-vite/tree/main/packages/dashboard
+    screenshot: /images/ecosystem/weapp-vite-devtools.webp
 ---
 
 #title