fix: Include /out/extension.js in VSIX bundle

- Removed out/** exclusion that was blocking webpack bundle
- Added granular exclusions for compiled TS files
- Keep webpack bundle (extension.js) in VSIX
- Fixes extension entrypoint missing error

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: ivg-design

.vscodeignore

@@ -2,12 +2,17 @@
 .vscode/**
 .vscode-test/**
 src/**
-out/**
 .git/**
 .github/**
 *.vsix
 .DS_Store
 
+# Exclude compiled TypeScript but keep webpack bundle
+out/**/*.js
+out/**/*.map
+!out/extension.js
+!out/extension.js.map
+
 # Development files
 webpack.config.js
 tsconfig.json