bump: version up to 0.5.0

Author: mingrammer

package.json

@@ -1,6 +1,6 @@
 {
   "name": "expr-lang-support",
-  "version": "0.3.0",
+  "version": "0.5.0",
   "description": "Language support for Expr language (https://expr-lang.org)",
   "private": true,
   "workspaces": [

packages/vscode/package.json

@@ -2,7 +2,7 @@
   "name": "expr-lang-support",
   "displayName": "Expr Lang - Syntax & Formatter",
   "description": "Syntax highlighting and formatting for Expr language (.expr files)",
-  "version": "0.4.0",
+  "version": "0.5.0",
   "publisher": "daangn-ml-data-platform",
   "repository": {
     "type": "git",
@@ -95,13 +95,17 @@
     "compile": "tsc -p ./",
     "watch": "tsc -watch -p ./",
     "package": "npm run build && vsce package --no-dependencies",
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "jest",
+    "test:watch": "jest --watch"
   },
   "devDependencies": {
+    "@types/jest": "^30.0.0",
     "@types/node": "^20.0.0",
     "@types/vscode": "^1.80.0",
-    "typescript": "^5.0.0",
-    "@vscode/vsce": "^2.19.0"
+    "@vscode/vsce": "^2.19.0",
+    "jest": "^30.2.0",
+    "ts-jest": "^29.4.5",
+    "typescript": "^5.0.0"
   },
   "keywords": [
     "expr",