test: support server-side unit testing (#2485)

.vscode/extensions.json

@@ -16,6 +16,7 @@
 
     "stylelint.vscode-stylelint",
 
-    "bradlc.vscode-tailwindcss"
+    "bradlc.vscode-tailwindcss",
+    "firsttris.vscode-jest-runner"
   ]
 }

.vscode/settings.json

@@ -23,5 +23,12 @@
   "i18n-ally.localesPaths": [
     "src/i18n/locale"
   ],
-  "yaml.format.singleQuote": true
+  "yaml.format.singleQuote": true,
+  "jestrunner.enableTestExplorer": true,
+  "jestrunner.defaultTestPatterns": [
+    "server/**/*.{test,spec}.?(c|m)[jt]s?(x)",
+  ],
+  "jestrunner.nodeTestCommand": "pnpm test",
+  "jestrunner.changeDirectoryToWorkspaceRoot": true,
+  "jestrunner.projectPath": "."
 }