Merge main into proxy branch (formatting and docs)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.vscode/settings.json

@@ -1,6 +1,8 @@
 {
-  "editor.defaultFormatter": "biomejs.biome",
+  "editor.defaultFormatter": "oxc.oxc-vscode",
   "editor.formatOnSave": true,
-  "biome.enabled": true,
-  "biome.lint.format.enable": true
+  "editor.formatOnSaveMode": "file",
+  "editor.codeActionsOnSave": {
+    "source.fixAll.oxc": "explicit"
+  }
 }