chore: add code formatting settings

.prettierignore

@@ -0,0 +1,3 @@
+backend/ai/**
+backend/database/**
+backend/storage/**

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+  "editor.formatOnSave": true,
+  "editor.formatOnSaveMode": "file",
+  "editor.codeActionsOnSave": {
+    "source.fixAll": "explicit",
+    "source.organizeImports": "explicit"
+  }
+}

frontend/.prettierrc

@@ -1,5 +1,6 @@
 {
   "tabWidth": 2,
   "semi": false,
-  "singleQuote": false
+  "singleQuote": false,
+  "insertFinalNewline": true
 }